22 May 2026 - Added tech: Stimulated emission - Added tech: Photoelectric effect - Added tech: Ultraviolet - Added tech: Infrared - Added connection: Photoelectric effect -> Photomultiplier tube - Added connection: Infrared -> Ultraviolet - Added connection: Dispersive prism and color spectrum -> Infrared - Added connection: Mercury thermometer -> Infrared - Added connection: Silver halides -> Ultraviolet - Added connection: Ultraviolet -> Excimer laser - Added connection: Dispersive prism and color spectrum -> Ultraviolet - Added connection: Ultraviolet -> Blueprint - Added connection: Ultraviolet -> Photoelectric effect - Added connection: Ultraviolet -> Photolithography - Added connection: Photoelectric effect -> Photon - Added connection: Photovoltaic effect -> Photoelectric effect - Added connection: Radio waves and spark-gap transmitter -> Photoelectric effect - Added connection: Photon -> Compton scattering - Added connection: Photon -> Stimulated emission - Added connection: Stimulated emission -> Maser - Added connection: Photon -> Wave–particle duality of matter - Added connection: X-ray -> Wave–particle duality of matter 21 May 2026 - Added tech: Outboard motor - Added tech: Powered model aircraft - Added tech: Bamboo-copter - Added connection: Archimedes' screw -> Screw propeller - Added connection: Paddle wheel boat -> Screw propeller - Added connection: Screw propeller -> Steam-powered battleship - Added connection: Screw propeller -> Mechanized submarine - Added connection: Screw propeller -> Self-propelled torpedo - Added connection: Screw propeller -> Air-independent submarine - Added connection: Screw propeller -> Airplane - Added connection: Animal-driven rotary mill -> Paddle wheel boat - Added connection: Watermill -> Paddle wheel boat - Added connection: Galley -> Paddle wheel boat - Added connection: Steamboat transport -> Screw propeller - Added connection: Motorcycle -> Outboard motor - Added connection: Four-stroke engine -> Outboard motor - Added connection: Screw propeller -> Outboard motor - Added connection: Kite -> Glider - Added connection: Glider -> Normalsegelapparat - Added connection: Glider -> Powered model aircraft - Added connection: Vulcanized rubber -> Powered model aircraft - Added connection: Powered model aircraft -> Airplane - Added connection: Bamboo-copter -> Powered model aircraft - Added connection: Steamboat -> Motorboat - Added connection: Motorboat -> Outboard motor 20 May 2026 - Added tech: Formaldehyde - Added tech: Screw propeller - Added tech: Phenol - Added tech: Methanol - Added tech: Silver halides - Added tech: Shellac - Added connection: Silver halides -> Cloud seeding - Added connection: Phenol -> Antiseptic surgery - Added connection: Coal tar -> Phenol - Added connection: Phenol -> Bakelite - Added connection: Formaldehyde -> Bakelite - Added connection: Shellac -> Bakelite - Added connection: Phenol -> Particle board - Added connection: Formaldehyde -> Particle board - Added connection: Fractional distillation -> Methanol - Added connection: Silver halides -> Calotype - Added connection: Silver halides -> Daguerreotype - Added connection: Noria and water wheel -> Archimedes' screw 19 May 2026 - Added tech: Medical glove - Added tech: Antiseptic surgery - Added tech: Germ theory - Added connection: Boyle's air pump -> Pneumatic trough - Added connection: Vulcanized rubber -> Medical glove - Added connection: Antiseptic surgery -> Medical glove - Added connection: Germ theory -> Antiseptic surgery - Added connection: Compound microscope -> Germ theory - Added connection: Cell theory -> Germ theory - Added connection: Alcohol fermentation -> Germ theory - Added connection: Germ theory -> Pasteurization - Added connection: Germ theory -> Autoclave - Added connection: Germ theory -> Agar plate - Added connection: Germ theory -> Anthrax vaccine - Added connection: Germ theory -> Chamberland water filter - Added connection: Germ theory -> Rabies vaccine - Added connection: Germ theory -> Activated sludge 18 May 2026 - Added tech: Glycerol - Added connection: Glycerol -> Nitroglycerin - Added connection: Soap -> Glycerol - Added connection: Olive oil -> Glycerol - Added connection: Coal tar -> TNT - Added connection: Pneumatic trough -> Carbonated water - Added connection: Pneumatic trough -> Hydrogen - Added connection: Pneumatic trough -> Nitrogen - Added connection: Pneumatic trough -> Methane - Added connection: Pneumatic trough -> Oxygen 17 May 2026 - Added connection: Nitric acid -> Nitroglycerin - Added connection: Sulfuric acid -> Nitroglycerin - Added connection: Nitric acid -> TNT - Added connection: Sulfuric acid -> TNT 16 May 2026 - Added connection: Hydrogen -> Haber process - Added connection: Coke (fuel) -> Haber process 15 May 2026 - Added tech: Liquefaction of gas - Added tech: Ammonia - Added connection: Hampson–Linde air liquefaction -> Claude air liquefaction - Added connection: Limestone -> Carbon dioxide - Added connection: Carbon dioxide -> Carbonated water - Added connection: Carbon dioxide -> Nitrogen - Added connection: Carbon dioxide -> Hydrogen - Added connection: Carbon dioxide -> Oxygen - Added connection: Sulfuric acid -> Carbon dioxide - Added connection: Soda ash from plants -> Sodium bicarbonate - Added connection: Carbon dioxide -> Sodium bicarbonate - Added connection: Carbon dioxide -> Solvay process - Added connection: Sodium bicarbonate -> Solvay process - Added connection: Carbon dioxide -> Dry ice - Added connection: Carbon dioxide -> Carbon-dioxide laser - Added connection: Liquefaction of gas -> Dry ice - Added connection: Liquefaction of gas -> Liquid oxygen - Added connection: Liquefaction of gas -> Liquid nitrogen - Added connection: Liquefaction of gas -> Liquefied gas refrigerants - Added connection: Blown glass -> Liquefaction of gas - Added connection: Public gas lighting -> Gas stove - Added connection: Rib vault -> Flying buttress - Added connection: Chlorine -> Liquefaction of gas - Added connection: Sulfuric acid -> Liquefaction of gas - Added connection: Liquefied gas refrigerants -> Hampson–Linde air liquefaction - Added connection: Ammonium chloride -> Ammonia - Added connection: Ammonia -> Liquefied gas refrigerants - Added connection: Ammonia -> Liquefaction of gas - Added connection: Ammonia -> Ostwald nitric acid process - Added connection: Ammonia -> Haber process 14 May 2026 - Added tech: Cloud seeding - Added tech: Dry ice - Added tech: Carbon dioxide - Added tech: Pneumatic trough - Added connection: Argon -> Helium (isolation) - Added connection: Hampson–Linde air liquefaction -> Neon - Added connection: Argon -> Neon - Added connection: Helium (isolation) -> Neon - Added connection: Periodic table -> Neon - Added connection: Atomic emission spectroscopy -> Neon - Added connection: Hampson–Linde air liquefaction -> Krypton - Added connection: Argon -> Krypton - Added connection: Atomic emission spectroscopy -> Krypton - Added connection: Krypton -> Xenon - Added connection: Hampson–Linde air liquefaction -> Xenon - Added connection: Magnesium -> Argon - Added connection: Aqueduct -> Yakhchāl - Added connection: Uranium -> Radium - Added connection: Uranium -> Polonium - Added connection: Blown glass -> Pneumatic trough - Added connection: Vacuum flask -> Hampson–Linde air liquefaction - Added connection: Airplane -> Cloud seeding - Added connection: Dry ice -> Cloud seeding - Added connection: Atomic emission spectroscopy -> Helium (discovery) - Added connection: Atomic emission spectroscopy -> Helium (isolation) - Added connection: Atomic emission spectroscopy -> Xenon - Added connection: Sulfuric acid -> Helium (isolation) - Added connection: Radioactivity -> Radon 13 May 2026 - Added connection: Periodic table -> Argon - Added connection: Nitrogen -> Argon - Added connection: Atomic emission spectroscopy -> Argon - Added connection: Geissler tube -> Argon - Added connection: Grove cell -> Argon - Added connection: Induction coil -> Argon 12 May 2026 - Added tech: Shadow-mask color TV set - Added connection: Zinc sulfide phosphor -> Shadow-mask color TV set - Added connection: Sprengel pump -> Argon - Added connection: Mercury -> Sprengel pump - Added connection: Telescope -> Magic lantern - Added connection: Color television -> Shadow-mask color TV set - Added connection: Television set -> Shadow-mask color TV set - Added connection: Terrestrial television -> Shadow-mask color TV set 11 May 2026 - Added tech: Fully mechanical astronomical clock - Added connection: Astrolabe -> Fully mechanical astronomical clock - Added connection: Magic lantern -> Autochrome - Added connection: Armillary sphere (Greece) -> Celestial globe - Added connection: Fully mechanical clock -> Fully mechanical astronomical clock - Added connection: Fully mechanical astronomical clock -> Planetarium projector - Added connection: Celestial globe -> Planetarium projector - Added connection: Light bulb -> Planetarium projector - Added connection: Fully mechanical astronomical clock -> Balance wheel - Added connection: Subtractive color film -> Slide projector - Added connection: Magic lantern -> Planetarium projector - Added connection: Light bulb -> Slide projector - Added connection: Bakelite -> Slide projector 10 May 2026 - Added tech: Geodesic dome - Added tech: Planetarium projector - Added connection: Planetarium projector -> Geodesic dome - Added connection: True dome -> Geodesic dome 9 May 2026 - Added tech: Flying buttress 8 May 2026 - Added connection: True dome -> Pendentive dome - Added connection: Roman concrete -> True dome - Added connection: True arch -> True dome - Added connection: Public bath -> True dome 7 May 2026 - Added tech: Protactinium - Added connection: Uranium -> Protactinium - Added connection: Periodic table -> Protactinium - Added connection: Periodic table -> Technetium 6 May 2026 - Added tech: Bow and bowed instruments - Added tech: Rosin - Added connection: Tree resin -> Rosin - Added connection: Alembic -> Turpentine - Added connection: Rosin -> Bow and bowed instruments - Added connection: Rosin -> Aquatint - Added connection: Domestication of the horse -> Bow and bowed instruments - Added connection: Bow and arrow -> Bow and bowed instruments - Added connection: Lute -> Bowed rebab - Added connection: Sodium hydroxide -> Uranium - Added connection: Nitric acid -> Uranium - Added connection: Bow and bowed instruments -> Byzantine lyra - Added connection: Lute -> Byzantine lyra - Added connection: Bow and bowed instruments -> Bowed rebab - Added connection: Bow and bowed instruments -> Vielle - Added connection: Bowed rebab -> Vielle 5 May 2026 - Added tech: Turpentine - Added tech: Tree resin - Added connection: Distillation -> Pine tar - Added connection: Tree resin -> Turpentine - Added connection: Hafting -> Tree resin - Added connection: Hafting -> Glue 4 May 2026 - Added tech: Spinthariscope - Added tech: Zinc sulfide phosphor - Added tech: Substitution cipher - Added connection: Substitution cipher -> Cipher disk - Added connection: Substitution cipher -> Frequency analysis - Added connection: Alphabet with vowels -> Substitution cipher - Added connection: Oil paint -> Radioluminescent paint - Added connection: Zinc sulfide phosphor -> Radioluminescent paint - Added connection: Radium -> Spinthariscope - Added connection: Zinc sulfide phosphor -> Spinthariscope - Added connection: Compound microscope -> Spinthariscope - Added connection: Zinc sulfide phosphor -> Television set - Added connection: Spinthariscope -> Scintillation counter 3 May 2026 - Added tech: Chemical vapor deposition - Added connection: Carbon fibers -> Chemical vapor deposition - Added connection: Chemical vapor deposition -> Plasma-enhanced chemical vapor deposition - Added connection: Chemical vapor deposition -> Metalorganic vapour-phase epitaxy - Added connection: Chemical vapor deposition -> Atomic layer deposition - Added connection: Light bulb -> Chemical vapor deposition - Added connection: Vacuum pump -> Chemical vapor deposition 2 May 2026 - Added tech: Chromolithography - Added connection: Lithography -> Chromolithography - Added connection: Red-yellow-blue color printing -> Chromolithography 1 May 2026 - Added tech: Subtractive color photography - Added connection: Color theory -> Color photography - Added connection: Color photography -> Subtractive color photography - Added connection: Red-yellow-blue color printing -> Subtractive color photography - Added connection: Color photography -> Color motion picture film - Added connection: Subtractive color photography -> Autochrome - Added connection: Subtractive color photography -> Three-strip color film - Added connection: Subtractive color photography -> Subtractive color film 30 April 2026 - Added tech: Red-yellow-blue color printing - Added tech: Color theory - Added connection: Mezzotint -> Red-yellow-blue color printing - Added connection: Engraving -> Photoengraving - Added connection: Etching -> Photoengraving - Added connection: Photoengraving -> Halftone - Added connection: Aquatint -> Halftone - Added connection: Dispersive prism and color spectrum -> Color theory - Added connection: Color theory -> Red-yellow-blue color printing - Added connection: Cochineal dye -> Red-yellow-blue color printing - Added connection: Prussian blue -> Red-yellow-blue color printing 29 April 2026 - Added tech: Waterproof disposable diaper - Added tech: Halftone - Added tech: Chalumeau - Added tech: Recorder - Added connection: Nylon -> Waterproof disposable diaper - Added connection: Chalumeau -> Clarinet - Added connection: Collodion wet-plate photography -> Halftone - Added connection: Flute -> Recorder - Added connection: Flute -> Chalumeau 28 April 2026 - Added tech: Aquatint - Added tech: Mezzotint - Added connection: Nitric acid -> Etching - Added connection: Copper -> Etching - Added connection: Etching -> Aquatint - Added connection: Mezzotint -> Aquatint - Added connection: Engraving -> Mezzotint 27 April 2026 - Added connection: Etching -> Siderography and steel engraving - Added connection: Difference engine -> Analytical engine 26 April 2026 - Added tech: Etching - Added connection: Ink -> Woodblock printing - Added connection: Engraving -> Etching - Added connection: Full plate armor -> Etching 25 April 2026 - Added tech: Printing ink - Added connection: Ink -> Printing ink - Added connection: Oil paint -> Printing ink - Added connection: Printing ink -> Printing press - Added connection: Printing ink -> Lithography 24 April 2026 - Added tech: Iron gall ink - Added tech: Vitriol - Added connection: Tricycle and quadricycle -> Electric car - Added connection: Ink -> Iron gall ink - Added connection: Vitriol -> Iron gall ink - Added connection: Vitriol -> Sulfuric acid 23 April 2026 - Added tech: Watercolor paint cake - Added tech: Gypsum plaster - Added connection: Domestication of bees -> Watercolor paint cake - Added connection: Gum arabic -> Watercolor paint cake - Added connection: Ink -> Watercolor paint cake - Added connection: Paint -> Watercolor paint cake - Added connection: Papermaking -> Watercolor paint cake - Added connection: Numerical control -> Laser cutting - Added connection: Acrylic glass -> Acrylic paint - Added connection: Oil paint -> Acrylic paint - Added connection: Polyethylene -> Acrylic glass - Added connection: Control of fire -> Gypsum plaster - Added connection: Gypsum plaster -> Tempera 22 April 2026 - Added tech: Encaustic painting - Added tech: Fresco - Added tech: Tempera - Added tech: Paint - Added connection: Pigments -> Paint - Added connection: Paint -> Cave painting - Added connection: Control of fire -> Paint - Added connection: Paint -> Oil paint - Added connection: Paint -> Tempera - Added connection: Lime mortar and plaster -> Fresco - Added connection: Paint -> Fresco - Added connection: Domestication of chickens -> Tempera - Added connection: Domestication of bees -> Encaustic painting - Added connection: Paint -> Encaustic painting 21 April 2026 - Added tech: Robotic surgery - Added tech: Rose madder - Added connection: Hydraulic cylinder -> Hydraulic excavator - Added connection: Hydraulic cylinder -> Hydraulic accumulator - Added connection: Hydraulic press -> Hydraulic cylinder - Added connection: Hydraulic cylinder -> Industrial robot - Added connection: Hydraulic cylinder -> Injection molding - Added connection: Hydraulic cylinder -> Bulldozer 20 April 2026 - Added tech: Industrial robot - Added tech: Hydraulic cylinder - Added connection: Drum memory -> Industrial robot - Added connection: Servomechanism -> Industrial robot 19 April 2026 - Added connection: Numerical control -> Computer-aided design - Added connection: Computer-aided design -> Stereolithography - Added connection: Numerical control -> Stereolithography - Added connection: Stereolithography -> Selective laser sintering - Added connection: Selective laser sintering -> Selective laser melting - Added connection: Laser -> Stereolithography - Added connection: Numerical control -> Selective laser sintering - Added connection: Stereolithography -> Fused filament fabrication - Added connection: Numerical control -> Fused filament fabrication 18 April 2026 - Added tech: Paint tube - Added tech: Cathodic protection - Added tech: Copper sheathed ship - Added tech: Hot-dip zinc coating - Added tech: Tinplate - Added connection: Zinc smelting -> Hot-dip zinc coating - Added connection: Iron smelting and wrought iron -> Hot-dip zinc coating - Added connection: Opium poppy cultivation -> Oil paint - Added connection: Oil paint -> Paint tube - Added connection: Tin extraction -> Tinplate - Added connection: Iron smelting and wrought iron -> Tinplate - Added connection: Tinplate -> Tin can - Added connection: Tinplate -> Paint tube - Added connection: Tinplate -> Hot-dip zinc coating - Added connection: Ammonium chloride -> Hot-dip galvanization - Added connection: Sulfuric acid -> Hot-dip galvanization - Added connection: Cathodic protection -> Hot-dip galvanization - Added connection: Hot-dip zinc coating -> Hot-dip galvanization - Added connection: Voltaic pile -> Cathodic protection - Added connection: Copper sheathed ship -> Cathodic protection - Added connection: Frigate -> Copper sheathed ship - Added connection: Copper smelting -> Copper sheathed ship - Added connection: Iron smelting and wrought iron -> Cathodic protection - Added connection: Zinc smelting -> Cathodic protection - Added connection: Electrostatic generator -> Galvanism - Added connection: Leyden jar -> Galvanism - Added connection: Kite experiment -> Galvanism 17 April 2026 - Added tech: Siderography and steel engraving - Added tech: Engraving - Added tech: Oil paint - Added tech: Niello - Added connection: Gum arabic -> Ink - Added connection: Gum arabic -> Adhesive postage stamp - Added connection: Tin bronze -> Niello - Added connection: Silver -> Niello - Added connection: Sulfur -> Niello - Added connection: Copper -> Niello - Added connection: Crucible -> Niello - Added connection: Niello -> Engraving - Added connection: Copper -> Engraving - Added connection: Papermaking -> Engraving - Added connection: Woodblock printing -> Engraving - Added connection: Engraving -> Siderography and steel engraving - Added connection: Siderography and steel engraving -> Adhesive postage stamp - Added connection: Paper money -> Siderography and steel engraving - Added connection: Crucible steel -> Siderography and steel engraving - Added connection: Domestication of flax -> Oil paint 16 April 2026 - Added tech: Carillon - Added tech: Barrel organ - Added tech: Gum arabic - Added connection: Barrel organ -> Loom with punched tape - Added connection: Pipe organ -> Barrel organ - Added connection: Barrel organ -> Music box - Added connection: Pocket watch -> Music box - Added connection: Fully mechanical clock -> Barrel organ - Added connection: Fully mechanical clock -> Balance wheel - Added connection: Bronze bell -> Carillon - Added connection: Fully mechanical clock -> Carillon - Added connection: Cam -> Barrel organ - Added connection: Cam -> Carillon - Added connection: Bow drill -> Lathe - Added connection: Wheel -> Cam - Added connection: Barrel organ -> Player piano - Added connection: Pump organ -> Player piano - Added connection: Limestone -> Lithography - Added connection: Gum arabic -> Lithography 15 April 2026 - Added tech: Electronic analog computer - Added tech: Music box - Added connection: Tabulating machine -> Numerical control - Added connection: Fire-control system -> Numerical control - Added connection: Servomechanism -> Ballistic missile - Added connection: Servomechanism -> Automated anti-aircraft fire-control system - Added connection: Servomechanism -> Cruise control - Added connection: Gyroscope -> Ballistic missile - Added connection: Servomechanism -> Flying bomb - Added connection: Electronic analog computer -> Ballistic missile - Added connection: Liquid-propellant rocket -> Electronic analog computer - Added connection: Amplifier -> Electronic analog computer - Added connection: Ball-and-disk integrator -> Electronic analog computer - Added connection: Dumaresq -> Fire-control system 14 April 2026 - Added tech: Numerical control - Added tech: Servomechanism - Added tech: Milling machine - Added connection: Lathe -> Milling machine - Added connection: Flintlock musket -> Milling machine - Added connection: Milling machine -> Numerical control - Added connection: Centrifugal governor -> Servomechanism - Added connection: Ocean liner -> Servomechanism - Added connection: Steam-powered battleship -> Servomechanism - Added connection: Servomechanism -> Numerical control - Added connection: Punched card -> Player piano 13 April 2026 - Added tech: Grooved rolling mill - Added tech: Reverberatory furnace - Added connection: Polished plate glass -> Aquarium - Added connection: Screw-cutting lathe -> Planer - Added connection: Lathe -> Screw-cutting lathe - Added connection: Puddling -> Grooved rolling mill - Added connection: Slitting mill -> Grooved rolling mill - Added connection: Iron smelting and wrought iron -> I-beam - Added connection: Grooved rolling mill -> I-beam - Added connection: Grooved rolling mill -> Corrugated iron - Added connection: Blast furnace -> Puddling - Added connection: Electronic CCTV and security camera -> Home video security system - Added connection: Security alarm -> Home video security system - Added connection: Reverberatory furnace -> Puddling - Added connection: Reverberatory furnace -> Open hearth furnace - Added connection: Tin bronze -> Reverberatory furnace - Added connection: Cannon -> Reverberatory furnace 12 April 2026 - v1.1.1: Desktop zoom - Added tech: Home video security system - Added tech: Security alarm 11 April 2026 - Added connection: Selenium photocell -> Nipkow disk - Added connection: Mechanical television -> Electronic television 10 April 2026 - Added tech: Electronic CCTV and security camera - Added tech: Closed-circuit television - Added connection: Videotelephone -> Video compression - Added connection: Video compression -> DVD - Added connection: Video compression -> Media streaming - Added connection: Closed-circuit television -> Electronic CCTV and security camera - Added connection: Mechanical television -> Closed-circuit television - Added connection: Electronic CCTV and security camera -> Ballistic missile - Added connection: Electronic television -> Electronic CCTV and security camera - Added connection: Video camera tube -> Electronic CCTV and security camera 9 April 2026 - Added tech: Video compression - Added tech: Videotelephone - Added connection: Mechanical television -> Videotelephone - Added connection: Telephone -> Videotelephone - Added connection: Cathode-ray tube -> Videotelephone - Added connection: Nipkow disk -> Videotelephone 8 April 2026 - v1.1: Mobile zoom - Added tech: Modern autopen - Added tech: Spray-dried instant coffee - Added tech: Instant coffee - Added tech: Spray dryer - Added tech: Polygraph autopen - Added tech: Pantograph - Added tech: Clothes iron - Added connection: Clothes iron -> Electric flatiron - Added connection: Cast iron -> Clothes iron - Added connection: Joule heating -> Electric flatiron - Added connection: Voltaic pile -> Joule heating - Added connection: Galvanometer -> Joule heating - Added connection: Pantograph -> Polygraph autopen - Added connection: Polygraph autopen -> Modern autopen - Added connection: Fountain pen -> Polygraph autopen - Added connection: Pantograph -> Tabulating machine - Added connection: Coffee -> Instant coffee - Added connection: Spray dryer -> Spray-dried instant coffee - Added connection: Instant coffee -> Spray-dried instant coffee - Added connection: Commercial telegraphy -> Pneumatic tube mail - Added connection: Vacuum pump -> Pneumatic tube mail 6 April 2026 - Added tech: Wetsuit - Added tech: Self-contained breathing apparatus - Added tech: Neoprene - Added tech: Machine drawn cylinder sheet glass - Added tech: Acetylene - Added connection: Machine drawn cylinder sheet glass -> Float glass - Added connection: Potassium -> Acetylene - Added connection: Acetylene -> Neoprene - Added connection: Neoprene -> Wetsuit - Added connection: Broad sheet glass -> Machine drawn cylinder sheet glass - Added connection: Synthetic rubber -> Neoprene - Added connection: Crown glass -> Machine drawn cylinder sheet glass - Added connection: Acetylene -> Carbide lamp - Added connection: Acetylene -> Calcium carbide production - Added connection: Lime -> Calcium carbide production - Added connection: Coke (fuel) -> Calcium carbide production - Added connection: Acetylene -> Oxy-fuel welding and cutting - Added connection: Scuba set -> Wetsuit - Added connection: Gas mask -> Self-contained breathing apparatus - Added connection: Diving regulator -> Self-contained breathing apparatus - Added connection: Scuba set -> Self-contained breathing apparatus 5 April 2026 - Added tech: Fourcault drawn sheet glass - Added connection: Fourcault drawn sheet glass -> Float glass - Added connection: Polished plate glass -> Float glass - Added connection: Broad sheet glass -> Fourcault drawn sheet glass - Added connection: Tin extraction -> Float glass - Added connection: Polished plate glass -> Laminated glass - Added connection: Polished plate glass -> Silver mirror 4 April 2026 - Added tech: Polished plate glass - Added connection: Glass -> Polished plate glass - Added connection: Tin-mercury amalgam mirror -> Polished plate glass 3 April 2026 - Added tech: Crown glass - Added tech: Broad sheet glass - Added tech: Lapis specularis window - Added connection: Glass window -> Broad sheet glass - Added connection: Blown glass -> Broad sheet glass - Added connection: Blown glass -> Crown glass - Added connection: Glass window -> Crown glass - Added connection: Glass -> Magnifying glass - Added connection: Broad sheet glass -> Glasshouse - Added connection: Lapis specularis window -> Greenhouse - Added connection: Mining -> Lapis specularis window - Added connection: Lapis specularis window -> Glass window 2 April 2026 - Added tech: Automatic bottle-blowing machine - Added connection: Blown glass -> Automatic bottle-blowing machine - Added connection: Light bulb -> Automatic bottle-blowing machine - Added connection: Automatic bottle-blowing machine -> Glass wool 1 April 2026 - Added tech: Glass wool - Added tech: Mineral wool - Added connection: Glass wool -> Fiberglass - Added connection: Blast furnace -> Mineral wool - Added connection: Mineral wool -> Glass wool 31 March 2026 - Added tech: Stable aquarium - Added tech: Aquarium - Added connection: Glasshouse -> Terrarium - Added connection: Terrarium -> Stable aquarium - Added connection: Aquarium -> Stable aquarium 30 March 2026 - Added tech: Terrarium 29 March 2026 - Added tech: Magnetic stripe card - Added tech: Electric flatiron - Added connection: Magnetic tape -> Magnetic stripe card - Added connection: Electric flatiron -> Magnetic stripe card - Added connection: Credit card -> Magnetic stripe card 26 March 2026 - Added tech: Cork - Added connection: Cork -> Cell - Added connection: Treadle loom -> Drawloom - Added connection: Ground loom -> Treadle loom - Added connection: Treadle loom -> Flying shuttle 25 March 2026 - Added tech: Ground loom - Added connection: Rope and twine -> Jute - Added connection: Weaving -> Ground loom 23 March 2026 - Added tech: Jute - Added connection: Rope and twine -> Safety fuse - Added connection: Jute -> Safety fuse - Added connection: Coal tar -> Safety fuse 21 March 2026 - Added tech: Modern land mine - Added tech: Mortar and artillery shell - Added connection: Explosive shell gun -> Induction balance metal detector - Added connection: Modern land mine -> Polish mine detector - Added connection: Pressure-operated land mine -> Modern land mine - Added connection: Percussion cap -> Contact fuze - Added connection: Fuse -> Grenade - Added connection: Grenade -> Mortar and artillery shell - Added connection: Cannon -> Mortar and artillery shell 20 March 2026 - Added tech: Contact fuze - Added tech: Caltrop - Added connection: Caltrop -> Land mine - Added connection: Snaphance -> Pressure-operated land mine - Added connection: Iron smelting and wrought iron -> Caltrop 19 March 2026 - Added connection: Gunpowder -> Fuse - Added connection: Fuse -> Safety fuse - Added connection: Mortar and artillery shell -> Explosive shell gun - Added connection: Land mine -> Pressure-operated land mine - Added connection: Fuse -> Land mine 17 March 2026 - Added tech: Fuse 16 March 2026 - Added tech: Safety fuse - Added tech: Explosive shell gun - Added tech: Pressure-operated land mine - Added connection: Explosive shell gun -> Ironclad 15 March 2026 - Added connection: Triode -> Induction balance metal detector - Added connection: High-vacuum tube -> Radio-frequency metal detector 14 March 2026 - Added tech: Polish mine detector - Added tech: Radio-frequency metal detector - Added tech: Induction balance metal detector - Added connection: Radio direction finding -> Radio-frequency metal detector - Added connection: Induction balance metal detector -> Radio-frequency metal detector - Added connection: Radio-frequency metal detector -> Polish mine detector 13 March 2026 - Added tech: Full body scanner - Added connection: Full body scanner -> Millimeter wave scanner - Added connection: X-ray -> Compton scattering - Added connection: Compton scattering -> Full body scanner 11 March 2026 - Added tech: Millimeter wave scanner 10 March 2026 - Added connection: Optical fiber -> Quantum cryptography - Added connection: Laser -> Quantum cryptography 9 March 2026 - Added tech: Protein - Added connection: Protein -> Protein sequencing 8 March 2026 - Added tech: Multiple sequence alignment - Added connection: Mirror galvanometer -> Transoceanic communication cable - Added connection: DNA sequencing -> Multiple sequence alignment - Added connection: Multiple sequence alignment -> AI protein structure prediction - Added connection: X-ray crystallography -> AI protein structure prediction 7 March 2026 - Added tech: Hot water central heating - Added tech: Chimney - Added connection: Transoceanic communication cable -> Syphon recorder - Added connection: Transoceanic communication cable -> Kelvite sounding machine - Added connection: Hot water central heating -> Radiator - Added connection: Domestication of chickens -> Thermostat - Added connection: Protein sequencing -> AI protein structure prediction - Added connection: Iron smelting and wrought iron -> Hot water central heating - Added connection: Chimney -> Franklin stove - Added connection: Chimney -> Central heating - Added connection: Stonemasonry -> Chimney - Added connection: Hypocaust -> Chimney - Added connection: Sounding machine -> Transoceanic communication cable - Added connection: Ocean liner -> Transoceanic communication cable 6 March 2026 - Added tech: Radiator - Added tech: Central heating - Added connection: Central heating -> Hot water central heating 5 March 2026 - Added tech: AI protein structure prediction - Added tech: Quantum cryptography - Added connection: Public-key cryptography -> Quantum cryptography - Added connection: Submarine communication cable -> Transoceanic communication cable - Added connection: Transformer (machine learning) -> AI protein structure prediction 4 March 2026 - Added tech: Transoceanic communication cable 2 March 2026 - Added tech: Drum memory - Added tech: Differential analyzer - Added connection: Wire recording -> Drum memory - Added connection: Electromagnet -> Wire recording - Added connection: Telephone -> Wire recording - Added connection: Drum memory -> Magnetic-core memory - Added connection: Phonograph -> Wire recording - Added connection: Tabulating machine -> Drum memory 1 March 2026 - Added tech: Graphics software - Added tech: Framebuffer - Added tech: Magnetic-core memory - Added tech: Digital image - Added connection: Wirephoto -> Digital image - Added connection: Digital image -> Computer digital image - Added connection: Computer digital image -> Digital camera - Added connection: Computer digital image -> CT scan - Added connection: Computer digital image -> Discrete cosine transform - Added connection: Magnetic-core memory -> Framebuffer - Added connection: Electromagnet -> Magnetic-core memory - Added connection: Framebuffer -> Graphics software - Added connection: Stored-program computer -> Magnetic-core memory - Added connection: MOS DRAM -> Graphics software - Added connection: Computer-aided design -> Graphics software - Added connection: Ball-and-disk integrator -> Differential analyzer 28 February 2026 - Added tech: Omni-font optical character recognition - Added tech: Flatbed image scanner - Added tech: Computer digital image - Added tech: Synthetic-aperture radar - Added tech: Optophone - Added connection: Radar -> Synthetic-aperture radar - Added connection: Stored-program computer -> Computer digital image - Added connection: Wirephoto -> Computer digital image - Added connection: Computer digital image -> Flatbed image scanner - Added connection: Laser -> Flatbed image scanner - Added connection: Flatbed image scanner -> Omni-font optical character recognition - Added connection: Charged-coupled device -> Omni-font optical character recognition - Added connection: Microcomputer -> Omni-font optical character recognition - Added connection: Selenium photocell -> Optophone 26 February 2026 - v1.0.5: Rename Finance to Commerce 25 February 2026 - Added tech: Universal Product Code - Added tech: Barcode - Added connection: Morse code -> Barcode - Added connection: Photomultiplier tube -> Barcode - Added connection: Barcode -> Universal Product Code - Added connection: Laser -> Universal Product Code 24 February 2026 - Added tech: Virtual reality headset - Added connection: Head-mounted display -> Virtual reality headset - Added connection: Stereoscope -> Head-mounted display - Added connection: Tin-mercury amalgam mirror -> Stereoscope - Added connection: Dispersive prism and color spectrum -> Stereoscope - Added connection: Perspective in art -> Head-mounted display 23 February 2026 - Added connection: Weather forecasting -> Weather radar 22 February 2026 - Added tech: Weather radar - Added tech: Radar network - Added connection: Radar network -> Computer network - Added connection: Fighter aircraft -> Radar network - Added connection: Radar -> Radar network - Added connection: Telephone -> Radar network - Added connection: Radar -> Weather radar 21 February 2026 - Added tech: Massively parallel sequencing - Added tech: Computer-aided design - Added tech: Light pen - Added connection: High-level programming language -> Spreadsheet - Added connection: High-level programming language -> Word processor software - Added connection: High-level programming language -> Graphical user interface - Added connection: High-level programming language -> Portable operating system - Added connection: Light pen -> Computer-aided design - Added connection: Stored-program computer -> Light pen - Added connection: Light pen -> Touchscreen - Added connection: Cathode-ray tube -> Light pen - Added connection: Stored-program computer -> Computer-aided design - Added connection: Human genome sequencing -> Massively parallel sequencing - Added connection: Optical fiber -> Massively parallel sequencing - Added connection: DNA sequencing -> Massively parallel sequencing 19 February 2026 - Added tech: AI coding agent - Added tech: AI code completion - Added connection: Reasoning model -> AI coding agent - Added connection: LLM chatbot -> AI coding agent - Added connection: AI code completion -> AI coding agent - Added connection: Large language model -> AI code completion - Added connection: Cloud computing -> Large language model - Added connection: Cloud computing -> Virtual assistant - Added connection: Cloud computing -> Smart speaker - Added connection: Radio waves and spark-gap transmitter -> Radio detector - Added connection: Induction coil -> Radio detector - Added connection: Galvanometer -> Radio detector 18 February 2026 - Added tech: Vasectomy 17 February 2026 - Added tech: Ocean liner - Added connection: Steamboat transport -> Ocean liner - Added connection: Ocean liner -> Fessenden oscillator 16 February 2026 - Added connection: Rail transport -> Nomogram 14 February 2026 - Added tech: VHF omnidirectional range - Added tech: High-frequency direction finder - Added tech: Low-frequency radio range - Added tech: Adcock antenna - Added tech: Bellini–Tosi direction finder - Added tech: Radio navigation system - Added tech: Radio direction finding - Added tech: Submarine signal bell - Added connection: Radio direction finding -> Bellini–Tosi direction finder - Added connection: Radio waves and spark-gap transmitter -> Radio direction finding - Added connection: Bellini–Tosi direction finder -> Adcock antenna - Added connection: Weather forecasting -> High-frequency direction finder - Added connection: Adcock antenna -> High-frequency direction finder - Added connection: Bellini–Tosi direction finder -> High-frequency direction finder - Added connection: Oscilloscope -> High-frequency direction finder - Added connection: Cathode-ray tube -> High-frequency direction finder - Added connection: Piezoelectricity -> Piezoelectric transducer - Added connection: Low-frequency radio range -> VHF omnidirectional range - Added connection: Adcock antenna -> Low-frequency radio range - Added connection: Triode -> Bellini–Tosi direction finder - Added connection: Submarine signal bell -> Fessenden oscillator - Added connection: Zeppelin -> Radio navigation system - Added connection: Radio direction finding -> Radio navigation system - Added connection: Radio navigation system -> Low-frequency radio range - Added connection: Electric-powered submarine -> Piezoelectric transducer - Added connection: Piezoelectric transducer -> Sonar - Added connection: Oscilloscope -> Medical ultrasound - Added connection: Piezoelectric transducer -> Ultrasonic testing - Added connection: Carbon microphone -> Submarine signal bell - Added connection: High-frequency direction finder -> Radar - Added connection: Airplane -> Low-frequency radio range - Added connection: Cathode-ray tube -> Radar 12 February 2026 - Added connection: Ultrasonic testing -> Medical ultrasound - Added connection: Titanium -> Kroll process 10 February 2026 - Added tech: Medical ultrasound - Added tech: Ultrasonic testing - Added tech: Sonar - Added tech: Piezoelectric transducer - Added tech: Fessenden oscillator - Added tech: Treadle loom - Added connection: Fessenden oscillator -> Sonar 7 February 2026 - Added connection: Stonemasonry -> Ondol - Added connection: Control of fire -> Ondol 5 February 2026 - Added connection: Leblanc process -> Claus process - Added connection: Sulfur -> Claus process 4 February 2026 - Added tech: Saqiyah - Added tech: Noria and water wheel - Added connection: Noria and water wheel -> Saqiyah - Added connection: Animal-driven rotary mill -> Saqiyah - Added connection: Spoked wheel -> Noria and water wheel - Added connection: Irrigation -> Noria and water wheel - Added connection: Noria and water wheel -> Watermill - Added connection: Gears -> Saqiyah - Added connection: Irrigation -> Chain pump 3 February 2026 - Added tech: Spoked wheel - Added connection: Wheel -> Spoked wheel - Added connection: Spoked wheel -> Chariot - Added connection: Spoked wheel -> Dandy horse - Added connection: Spoked wheel -> Wire wheel 2 February 2026 - Added tech: Warp-weighted loom - Added connection: Rope and twine -> Weaving - Added connection: Weaving -> Warp-weighted loom - Added connection: Linen -> Weaving 1 February 2026 - Added tech: Lockstitch sewing machine - Added tech: Stitching awl - Added connection: Tanned leather -> Sewing machine - Added connection: Sewing machine -> Lockstitch sewing machine - Added connection: Soap -> Sodium hydroxide - Added connection: Soda ash from plants -> Sodium hydroxide - Added connection: Lime -> Sodium hydroxide - Added connection: Sewing needle -> Lockstitch sewing machine - Added connection: Sewing needle -> Nålebinding - Added connection: Stitching awl -> Sewing machine - Added connection: Stitching awl -> Sewing needle - Added connection: Acheulean stone tool -> Bone tool 31 January 2026 - Added connection: Lime -> Calcium - Added connection: Lime -> Beet sugar factory - Added connection: Limestone -> Portland cement - Added connection: Limestone -> Gilchrist–Thomas process - Added connection: Lime -> Basic oxygen steelmaking - Added connection: Lime -> Egyptian faience - Added connection: Lime -> Autoclaved aerated concrete 30 January 2026 - Added tech: Chloralkali process - Added tech: Solvay process - Added tech: Limestone - Added connection: Leblanc process -> Solvay process - Added connection: Lime -> Nixtamalization - Added connection: Soda ash from plants -> Sodium hypochlorite bleach - Added connection: Lime -> Bleaching powder - Added connection: Salt mining -> Leblanc process - Added connection: Sulfuric acid -> Leblanc process - Added connection: Coal mining -> Leblanc process - Added connection: Asbestos (industrial use) -> Chloralkali process - Added connection: Chlorine -> Chloralkali process - Added connection: Stonemasonry -> Limestone - Added connection: Limestone -> Lime - Added connection: Limestone -> Solvay process - Added connection: Control of fire -> Lime 29 January 2026 - Added tech: Water chlorination - Added tech: Waterproof raincoat - Added tech: Sodium hypochlorite bleach - Added tech: Bleaching powder - Added tech: Leblanc process - Added tech: Bleach - Added tech: Sodium hydroxide - Added tech: Soda ash from plants - Added connection: Chlorine -> Bleach - Added connection: Bleach -> Sodium hypochlorite bleach - Added connection: Chlorine -> Water chlorination - Added connection: Rubber -> Waterproof raincoat - Added connection: Coal tar -> Waterproof raincoat - Added connection: Bleach -> Bleaching powder - Added connection: Sodium hypochlorite bleach -> Water chlorination - Added connection: Chlorine -> Bleaching powder - Added connection: Hydrochloric acid -> Chlorine - Added connection: Natron -> Soda ash from plants - Added connection: Glass -> Soda ash from plants - Added connection: Soda ash from plants -> Leblanc process - Added connection: Pottery -> Plumbing 28 January 2026 - Added tech: Activated sludge - Added tech: Water purification by sand filter - Added tech: Centrifugal governor - Added connection: Post windmill -> Centrifugal governor - Added connection: Watt steam engine -> Centrifugal governor - Added connection: Sword -> Guillotine - Added connection: Hafted axe -> Guillotine 27 January 2026 - Added tech: Guillotine 26 January 2026 - Added tech: Marker degradation - Added tech: Bunsen cell - Added tech: Grove cell - Added connection: Marker degradation -> Combined oral contraceptive pill - Added connection: Linen -> Condom - Added connection: Bunsen cell -> Fluorine (isolation) - Added connection: Grove cell -> Bunsen cell - Added connection: Daniell cell -> Grove cell - Added connection: Zinc smelting -> Grove cell - Added connection: Platinum -> Grove cell 24 January 2026 - Added tech: Aerosol spray can - Added tech: Intrauterine device - Added tech: Condom - Added tech: Rib vault - Added tech: Glass window - Added tech: Groin vault - Added tech: Barrel vault - Added connection: Flute -> Aulos - Added connection: Construction mortar -> Barrel vault - Added connection: Fired bricks -> Barrel vault - Added connection: Barrel vault -> Groin vault - Added connection: Groin vault -> Rib vault - Added connection: Glass -> Glass window 17 January 2026 - Added connection: Achromatic lens and achromatic telescope -> Spectroscope - Added connection: Telescope -> Spectroscope - Added connection: Glass -> Dispersive prism and color spectrum - Added connection: Spectroscope -> Spectrophotometer - Added connection: Spectroscope -> X-ray crystallography 15 January 2026 - Added tech: Petroleum naphtha - Added tech: Dispersive prism and color spectrum - Added connection: Petroleum naphtha -> Ferrocerium lighter - Added connection: Fractional distillation -> Petroleum naphtha - Added connection: Modern oil well -> Petroleum naphtha - Added connection: Petroleum as fuel -> Petroleum naphtha - Added connection: Dispersive prism and color spectrum -> Spectroscope 14 January 2026 - Added connection: Iron smelting and wrought iron -> Ice skates with sharp edge 13 January 2026 - Added tech: Disposable lighter - Added tech: Ferrocerium lighter - Added tech: Lutetium - Added tech: Ferrocerium - Added tech: Ytterbium - Added tech: Butane - Added tech: Kipp's apparatus - Added tech: Cerium - Added tech: Ice skates with sharp edge - Added tech: Ice skates - Added connection: Zinc smelting -> Döbereiner's lamp - Added connection: Sulfuric acid -> Döbereiner's lamp - Added connection: Platinum -> Döbereiner's lamp - Added connection: Hydrogen -> Döbereiner's lamp - Added connection: Blown glass -> Kipp's apparatus - Added connection: Hydrogen -> Kipp's apparatus - Added connection: Cerium -> Ferrocerium - Added connection: Ferrocerium -> Ferrocerium lighter - Added connection: Iron smelting and wrought iron -> Ferrocerium - Added connection: Ytterbium -> Lutetium - Added connection: Petroleum as fuel -> Butane - Added connection: Ferrocerium lighter -> Disposable lighter - Added connection: Butane -> Disposable lighter - Added connection: True flintlock -> Ferrocerium lighter - Added connection: Bone tool -> Ice skates - Added connection: Ice skates -> Ice skates with sharp edge - Added connection: Ice skates with sharp edge -> Roller skates 7 January 2026 - Added tech: Butter - Added tech: Cheese - Added connection: Butter -> Margarine - Added connection: Domestication of sheep -> Cheese - Added connection: Domestication of goats -> Butter - Added connection: Domestication of sheep -> Butter 6 January 2026 - Added tech: Atomic emission spectroscopy - Added tech: Spectroscope - Added connection: Atomic emission spectroscopy -> Atomic absorption spectroscopy - Added connection: Spectroscope -> Atomic emission spectroscopy 5 January 2026 - Added connection: Chromatography -> Gas chromatography 4 January 2026 - Added tech: Atomic absorption spectroscopy - Added tech: Gas chromatography 3 January 2026 - Added tech: Polymer banknote - Added tech: Polypropylene - Added tech: Ziegler–Natta catalyst - Added tech: Diazomethane - Added tech: Propylene - Added tech: Bromine - Added tech: Ethylene - Added connection: Aniline -> Synthetic dye - Added connection: Propylene -> Polypropylene - Added connection: Diazomethane -> Polyethylene - Added connection: Sulfuric acid -> Ethylene - Added connection: Alcohol fermentation -> Ethylene - Added connection: Polyethylene -> Ziegler–Natta catalyst - Added connection: Ethylene -> Ziegler–Natta catalyst - Added connection: Ziegler–Natta catalyst -> Polypropylene - Added connection: Titanium -> Ziegler–Natta catalyst - Added connection: Bromine -> Propylene - Added connection: Ether -> Bromine - Added connection: Chlorine -> Bromine - Added connection: Polypropylene -> Polymer banknote - Added connection: Paper money -> Polymer banknote 30 December 2025 - Added tech: Oral irrigator - Added tech: Dental floss - Added connection: Silk -> Dental floss - Added connection: Syringe -> Oral irrigator 24 December 2025 - Added tech: Exoskeleton - Added tech: Airbag - Added tech: Eraser - Added connection: Rubber -> Eraser - Added connection: Leavened bread -> Eraser - Added connection: Charcoal -> Eraser - Added connection: Automobile -> Airbag 22 December 2025 - Added tech: Nuclear-powered surface ship - Added tech: Pencil sharpener - Added tech: Noodles - Added connection: Nuclear-powered surface ship -> Small modular reactor - Added connection: Nuclear submarine -> Nuclear-powered surface ship - Added connection: Modern pencil -> Pencil sharpener - Added connection: Domestication of millet -> Noodles - Added connection: Noodles -> Instant noodles 20 December 2025 - Added tech: Airless tire - Added connection: Pneumatic tire -> Airless tire - Added connection: Polyurethane -> Airless tire - Added connection: Radial tire -> Airless tire 6 December 2025 - Added tech: Rotor ship 5 December 2025 - Added tech: Instant noodles 4 December 2025 - Added tech: Quartz wristwatch - Added connection: Quartz clock -> Quartz wristwatch - Added connection: Wristwatch -> Quartz wristwatch 20 November 2025 - Added tech: Cooling tower - Added tech: Condenser - Added connection: Condenser -> Cooling tower - Added connection: Condenser -> Air conditioner - Added connection: Coal power plant -> Cooling tower 5 October 2025 - Added tech: Small modular reactor - Added connection: Nuclear reactor -> Small modular reactor 4 October 2025 - Added tech: Rammed earth 2 October 2025 - Added tech: Slitting mill - Added connection: Watermill -> Slitting mill - Added connection: Iron smelting and wrought iron -> Slitting mill 28 September 2025 - Added tech: Head-mounted display - Added tech: Two-stroke engine and supercharger - Added connection: Two-stroke engine and supercharger -> Turbocharger - Added connection: Four-stroke engine -> Two-stroke engine and supercharger - Added connection: Integrated circuit computer -> Head-mounted display 27 September 2025 - Added tech: Tea - Added tech: Umbrella 24 September 2025 - Added tech: Goniometer - Added connection: Sector -> Goniometer 22 September 2025 - Added tech: TALEN genome editing - Added connection: Zinc-finger nuclease genome editing -> TALEN genome editing - Added connection: Zinc-finger nuclease genome editing -> CRISPR gene editing 21 September 2025 - Added tech: Polarizing filter - Added tech: Polarizing prism - Added tech: Iceland spar - Added connection: Iceland spar -> Polarizing prism - Added connection: Nitrocellulose film -> Polarizing filter - Added connection: Polarizing prism -> Polarizing filter 19 September 2025 - Added tech: Instant film 18 September 2025 - Added tech: Zinc-finger nuclease genome editing - Added tech: Zinc finger - Added connection: Zinc finger -> Zinc-finger nuclease genome editing - Added connection: Cellulose acetate film -> Instant film 17 September 2025 - Added tech: Candle clock - Added connection: Candle -> Candle clock 16 September 2025 - Added tech: Automatic fire sprinkler - Added connection: Fire extinguisher -> Automatic fire sprinkler 15 September 2025 - Added tech: Fire extinguisher - Added connection: Pewter -> Fire extinguisher - Added connection: Gunpowder -> Fire extinguisher 14 September 2025 - Added tech: Napalm - Added tech: Hydraulic mining - Added connection: Aqueduct -> Hydraulic mining - Added connection: Reservoir -> Hydraulic mining - Added connection: Mining -> Hydraulic mining - Added connection: Vulcanized rubber -> Napalm - Added connection: Gasoline as fuel -> Napalm - Added connection: Napalm -> Fracking - Added connection: Modern oil well -> Fracking 13 September 2025 - Added tech: Herbicide-resistant GMO - Added tech: Glyphosate - Added tech: Electric drip coffee maker - Added tech: Agent Orange - Added connection: Glyphosate -> Herbicide-resistant GMO - Added connection: Domestication of soybeans -> Herbicide-resistant GMO - Added connection: Genetically modified food -> Herbicide-resistant GMO - Added connection: Coffee filter -> Electric drip coffee maker - Added connection: Coffee percolator -> Electric drip coffee maker 12 September 2025 - Added tech: Electric hearing aid - Added connection: Ear trumpet -> Electric hearing aid - Added connection: Carbon microphone -> Electric hearing aid 11 September 2025 - Added tech: Ear trumpet - Added connection: Ear trumpet -> Stethoscope 10 September 2025 - Added tech: Silica gel - Added tech: Industrial porcelain enamel - Added tech: Water glass - Added tech: Ether - Added tech: Ethanol (isolation) - Added tech: Vitreous enamel - Added tech: Cloisonné - Added connection: Glass -> Vitreous enamel - Added connection: Cloisonné -> Vitreous enamel - Added connection: Gold -> Cloisonné - Added connection: Vitreous enamel -> Industrial porcelain enamel - Added connection: Cast iron -> Industrial porcelain enamel - Added connection: Iron smelting and wrought iron -> Industrial porcelain enamel - Added connection: Gas mask -> Silica gel - Added connection: Water glass -> Silica gel - Added connection: Vacuum pump -> Artificial refrigeration - Added connection: Ether -> Artificial refrigeration - Added connection: Sulfuric acid -> Ether - Added connection: Fractional distillation -> Ethanol (isolation) - Added connection: Alcohol fermentation -> Ethanol (isolation) - Added connection: Ethanol (isolation) -> Ether - Added connection: Salt mining -> Ethanol (isolation) 8 September 2025 - Added tech: Ketamine - Added tech: Geothermal power plant - Added tech: Geothermal power - Added connection: Geothermal power -> Geothermal power plant 7 September 2025 - Added connection: Kaplan turbine -> Tidal power station 6 September 2025 - Added tech: Tidal power station - Added tech: Chemotherapy - Added tech: Tjasker - Added tech: Tide mill - Added connection: Archimedes' screw -> Tjasker - Added connection: Post windmill -> Tjasker - Added connection: Mustard gas -> Chemotherapy - Added connection: Wind turbine -> Offshore wind farm - Added connection: Watermill -> Tide mill - Added connection: Tide mill -> Tidal power station 5 September 2025 - Added tech: Offshore wind farm 4 September 2025 - Added tech: Carbon-14 - Added tech: Modern pencil - Added tech: Graphite pencil - Added tech: Graphite - Added connection: Carbon-14 -> Automatic teller machine - Added connection: Cyclotron -> Carbon-14 - Added connection: Carbon-14 -> Radiocarbon dating - Added connection: Graphite -> Carbon-14 - Added connection: Graphite -> Graphene - Added connection: Graphite -> Graphite pencil - Added connection: Graphite pencil -> Modern pencil - Added connection: Coke (fuel) -> Acheson process - Added connection: Isotopes -> Carbon-14 - Added connection: Graphite -> Nuclear reactor 3 September 2025 - Added tech: Geographic information system - Added tech: Photogrammetry - Added tech: Pedal harp - Added tech: Zither - Added tech: Harp - Added connection: Musical bow -> Harp - Added connection: Harp -> Pedal harp - Added connection: Harp -> Lyre - Added connection: Zither -> Psaltery - Added connection: Lyre -> Zither - Added connection: Transistor computer -> Geographic information system - Added connection: Photographic camera -> Photogrammetry - Added connection: Photogrammetry -> Geographic information system 2 September 2025 - Added connection: Domestication of the horse -> Saddle - Added connection: Domestication of the horse -> Hipposandal 1 September 2025 - Added tech: Compound bow - Added tech: Liquid crystals - Added tech: Onager - Added tech: Ballista - Added tech: Composite bow - Added tech: Sling - Added connection: Sword -> Shield - Added connection: Hafted spear -> Shield - Added connection: Bow and arrow -> Shield - Added connection: Hafted axe -> Shield - Added connection: Sling -> Shield - Added connection: Bow and arrow -> Composite bow - Added connection: Hafting -> Bow and arrow - Added connection: Composite bow -> Compound bow - Added connection: Pulley -> Compound bow - Added connection: Liquid crystals -> Liquid-crystal display - Added connection: Tin bronze -> Crossbow (China) - Added connection: Crossbow (Greece) -> Ballista - Added connection: Bow and arrow -> Crossbow (China) - Added connection: Composite bow -> Crossbow (Greece) - Added connection: Ballista -> Onager - Added connection: Sling -> Traction trebuchet 30 August 2025 - Added tech: Mustard gas - Added connection: Radium -> Smoke detector - Added connection: Vapor-compression refrigeration system -> Hampson–Linde air liquefaction - Added connection: Triode -> Smoke detector - Added connection: Cigarette -> Smoke detector - Added connection: Mustard gas -> Smoke detector 29 August 2025 - Added tech: Smoke detector - Added tech: Alkaline fuel cell - Added tech: Dishwasher - Added connection: Hydrogen -> Fuel cell - Added connection: Oxygen -> Fuel cell - Added connection: Sulfuric acid -> Fuel cell - Added connection: Voltaic pile -> Fuel cell - Added connection: Fuel cell -> Alkaline fuel cell - Added connection: Alkaline fuel cell -> Reusable spacecraft - Added connection: Porcelain -> Dishwasher 28 August 2025 - Added tech: Chromic acid cell - Added connection: Daniell cell -> Rechargeable battery - Added connection: Sulfuric acid -> Rechargeable battery - Added connection: Linen -> Rechargeable battery - Added connection: Daniell cell -> Chromic acid cell - Added connection: Chromic acid cell -> Electric pen - Added connection: Sulfuric acid -> Chromic acid cell 26 August 2025 - Added connection: Saddle -> Toe stirrup - Added connection: Saddle -> Stirrup - Added connection: Lime -> Limelight - Added connection: Sulfur -> Sulfur match 25 August 2025 - Added tech: Titanium white - Added tech: Zinc white - Added connection: Titanium -> Titanium white - Added connection: Tin extraction -> Printing press - Added connection: Lead smelting -> Printing press - Added connection: Antimony -> Printing press - Added connection: Brass -> Zinc white - Added connection: Sulfuric acid -> Titanium white 24 August 2025 - Added tech: Disappearing-filament pyrometer - Added tech: Pyrometer - Added tech: Crucible - Added connection: Offset printing -> Phototypesetting - Added connection: Crucible -> Crucible steel - Added connection: Pottery -> Crucible - Added connection: Control of fire -> Lead smelting - Added connection: Crucible -> Arsenical bronze - Added connection: Crucible -> Brass - Added connection: Pyrometer -> Disappearing-filament pyrometer 23 August 2025 - Added tech: Phototypesetting - Added tech: Hot metal typesetting - Added connection: Hot metal typesetting -> Phototypesetting - Added connection: Movable type -> Hot metal typesetting 22 August 2025 - Added tech: Nomogram - Added connection: Watermill -> Fulling mill 21 August 2025 - Added tech: Video display controller - Added connection: Arcade video game -> Video display controller - Added connection: Keplerian refracting telescope -> Achromatic lens and achromatic telescope - Added connection: Video display controller -> GPU - Added connection: Home computer -> Video display controller - Added connection: Writing (China) -> Video display controller - Added connection: CMOS -> GPU 20 August 2025 - Added tech: Acrylic paint - Added tech: Cadmium pigments - Added tech: Hot-dip galvanization - Added tech: Cadmium - Added connection: Nickel -> Nickel–cadmium battery - Added connection: Nickel–cadmium battery -> Nickel–iron battery - Added connection: Nickel -> Nickel–iron battery - Added connection: Cadmium -> Cadmium pigments - Added connection: Cadmium -> Nickel–cadmium battery - Added connection: Iron smelting and wrought iron -> Corrugated iron 19 August 2025 - Added tech: Spirit duplicator - Added tech: Hectograph - Added tech: Hydrogen peroxide - Added tech: Cobalt blue - Added tech: Lime mortar and plaster - Added tech: Lime - Added connection: Coal tar -> Aniline - Added connection: Aniline -> Spirit duplicator - Added connection: Aniline -> Hectograph - Added connection: Tin extraction -> Cerulean blue - Added connection: Cobalt -> Cobalt blue - Added connection: Blue and white pottery -> Cobalt blue - Added connection: Kelvin scale and absolute zero -> International system of units - Added connection: Lime -> Lime mortar and plaster - Added connection: Lime -> Synthetic ultramarine - Added connection: Construction mortar -> Lime mortar and plaster - Added connection: Concrete -> Waterproof concrete 18 August 2025 - Added tech: Kermes dye - Added tech: Vermilion - Added connection: Vermilion -> Mercury - Added connection: Pigments -> Vermilion - Added connection: Pigments -> Indigo dye - Added connection: Pigments -> Verdigris - Added connection: Pigments -> White lead - Added connection: Pigments -> Kermes dye - Added connection: Kermes dye -> Cochineal dye - Added connection: Pigments -> Cochineal dye 17 August 2025 - Added tech: Cerulean blue - Added tech: Smalt - Added tech: Natron - Added tech: Egyptian faience - Added connection: Copper smelting -> Egyptian blue - Added connection: Natron -> Egyptian blue - Added connection: Natron -> Proto-soap - Added connection: Natron -> Glass - Added connection: Smalt -> Blue and white pottery - Added connection: Egyptian faience -> Smalt - Added connection: Smalt -> Cobalt - Added connection: Cobalt -> Samarium–cobalt magnet - Added connection: Cobalt -> Cerulean blue - Added connection: Egyptian faience -> Glass - Added connection: Copper smelting -> Egyptian faience 16 August 2025 - Added tech: YInMn blue - Added tech: Maya blue - Added connection: Cotton (New World) -> Indigo dye - Added connection: Indigo dye -> Maya blue 15 August 2025 - Added tech: Smartwatch - Added tech: Digital electronic watch - Added connection: Telephone -> Moving-coil loudspeaker - Added connection: Digital electronic watch -> Smartwatch - Added connection: Wristwatch -> Digital electronic watch - Added connection: LED display -> Digital electronic watch - Added connection: Liquid-crystal display -> Smartwatch - Added connection: Home computer -> Smartwatch 14 August 2025 - Added tech: Decaffeinated coffee - Added tech: Tofu - Added connection: Coffee -> Decaffeinated coffee - Added connection: Benzene -> Decaffeinated coffee - Added connection: Caffeine -> Decaffeinated coffee - Added connection: Domestication of wheat -> Gristmill - Added connection: Fragmentation bomb -> Bombsight - Added connection: Domestication of soybeans -> Tofu 13 August 2025 - Added connection: Electromagnet -> Moving-coil loudspeaker - Added connection: Moving-coil loudspeaker -> Noise-cancelling headphones 12 August 2025 - Added tech: Facial recognition system - Added tech: Moving-coil loudspeaker - Added tech: Cultured pearl - Added connection: Oyster farming -> Cultured pearl 11 August 2025 - Added tech: General-purpose computing on GPU - Added tech: GPU - Added connection: GPU -> General-purpose computing on GPU - Added connection: General-purpose computing on GPU -> AlexNet - Added connection: General-purpose computing on GPU -> Transformer (machine learning) - Added connection: General-purpose computing on GPU -> Generative adversarial network 9 August 2025 - Added tech: Turbocharger - Added tech: Foam extinguisher - Added tech: Firefighting foam - Added tech: Vanadium - Added tech: Galvanism - Added tech: Methane - Added tech: Nickel silver - Added tech: Blue and white pottery - Added tech: Pewter - Added connection: Copper smelting -> Voltaic pile - Added connection: Zinc smelting -> Voltaic pile - Added connection: Galvanism -> Voltaic pile - Added connection: Stamp seal -> Woodblock printing - Added connection: Writing (China) -> Woodblock printing - Added connection: Radial engine -> Turbocharger - Added connection: Weaving -> Cotton (New World) - Added connection: Weaving -> Cotton (Old World) - Added connection: Modern oil well -> Firefighting foam - Added connection: Firefighting foam -> Foam extinguisher - Added connection: Sodium bicarbonate -> Firefighting foam - Added connection: Cupronickel -> Nickel silver - Added connection: Porcelain -> Blue and white pottery - Added connection: Blue and white pottery -> Cobalt - Added connection: Tin extraction -> Pewter - Added connection: Lead smelting -> Pewter 7 August 2025 - Added tech: Scanning electron microscope - Added connection: Electron microscope -> Scanning electron microscope 5 August 2025 - Added tech: K'un-lun po - Added connection: Tanja sail -> K'un-lun po 4 August 2025 - Added tech: Quinine - Added tech: Strychnine - Added tech: Jesuit's bark - Added connection: Quinine -> Synthetic dye - Added connection: Jesuit's bark -> Quinine - Added connection: Seaweed farming -> Agar 2 August 2025 - Added tech: Banjo - Added tech: Acetone - Added tech: White lead - Added tech: Verdigris - Added tech: Vinegar - Added connection: Vinegar -> White lead - Added connection: Vinegar -> Verdigris - Added connection: Copper -> Verdigris - Added connection: Lead smelting -> White lead - Added connection: Joule–Thomson effect -> Liquid oxygen 1 August 2025 - Added tech: Malaria vaccine - Added tech: DDT insecticide - Added tech: DDT - Added tech: Coal tar - Added connection: DDT -> DDT insecticide - Added connection: Pine tar -> Coal tar - Added connection: Coal mining -> Coal tar - Added connection: Coke (fuel) -> Silicon carbide - Added connection: Silicon -> Silicone 31 July 2025 - Added connection: Coal gas and gas lighting -> Gas mantle - Added connection: Radio waves and spark-gap transmitter -> Resonant transformer - Added connection: Alternating current -> Resonant transformer 27 July 2025 - Added tech: Oriented strand board - Added tech: Particle board - Added tech: Harpoon cannon - Added tech: Sperm oil and spermaceti candle - Added tech: Sperm whaling - Added tech: Whale oil - Added tech: Keel - Added tech: Shield - Added tech: Whaling - Added connection: Sperm oil and spermaceti candle -> Petroleum jelly - Added connection: Harpoon -> Whaling - Added connection: Boat -> Whaling - Added connection: Phoenician joint -> Keel - Added connection: Keel -> Cog - Added connection: Whaling -> Whale oil - Added connection: Cannon -> Harpoon cannon - Added connection: Harpoon -> Harpoon cannon - Added connection: Whaling -> Harpoon cannon - Added connection: Whaling -> Sperm whaling - Added connection: Sperm whaling -> Sperm oil and spermaceti candle - Added connection: Whale oil -> Sperm oil and spermaceti candle - Added connection: Candle -> Sperm oil and spermaceti candle 26 July 2025 - v1.0.4: Subfields 24 July 2025 - v1.0.3: Info icons for connection details 21 July 2025 - Added tech: Alexanderson alternator - Added tech: Arc converter - Added tech: Singing arc - Added connection: Leyden jar -> Radio waves and spark-gap transmitter - Added connection: Arc lamp -> Singing arc - Added connection: Singing arc -> Arc converter - Added connection: Wireless telegraphy -> Arc converter - Added connection: Moving-coil oscillograph -> Singing arc - Added connection: Wireless telegraphy -> Alexanderson alternator - Added connection: Amplitude modulation -> Alexanderson alternator - Added connection: Amplitude modulation -> Arc converter 19 July 2025 - Added tech: Combination lock - Added tech: Padlock - Added connection: Egyptian wooden pin tumbler lock -> Combination lock - Added connection: Egyptian wooden pin tumbler lock -> Padlock 17 July 2025 - Added tech: Fuel pump - Added connection: Kerosene lamp -> Fuel pump 16 July 2025 - Added tech: Bread - Added connection: Bread -> Leavened bread - Added connection: Control of fire -> Bread - Added connection: Mortar and pestle -> Bread 15 July 2025 - Added tech: Gyro gunsight - Added tech: Reflector sight - Added tech: Artificial horizon - Added tech: Telescopic sight - Added connection: Slide rule -> Vector bombsight - Added connection: Geiger counter -> Radiocarbon dating - Added connection: Keplerian refracting telescope -> Telescopic sight - Added connection: Telescopic sight -> Reflector sight - Added connection: Reflector sight -> Gyro gunsight - Added connection: Gyroscope -> Gyro gunsight - Added connection: Gyroscope -> Tachometric bombsight 13 July 2025 - Added connection: Fire-control system -> Automated anti-aircraft fire-control system 12 July 2025 - Added tech: Interstellar probe - Added tech: Tachometric bombsight - Added tech: Vector bombsight - Added tech: Kelvite sounding machine - Added tech: Sounding machine - Added tech: Depth sounding - Added connection: Airplane -> Bombsight - Added connection: Bombsight -> Vector bombsight - Added connection: Vector bombsight -> Tachometric bombsight - Added connection: Ball-and-disk integrator -> Tachometric bombsight - Added connection: Tide-predicting machine -> Ball-and-disk integrator - Added connection: Piano -> Kelvite sounding machine - Added connection: Depth sounding -> Sounding machine - Added connection: Sounding machine -> Kelvite sounding machine 10 July 2025 - Added tech: Bombsight 9 July 2025 - Added tech: Fire-control system - Added tech: Dumaresq - Added tech: Ball-and-disk integrator - Added tech: Tide-predicting machine - Added tech: Hydrochloric acid - Added tech: Aqua regia - Added tech: Ammonium chloride - Added connection: Ammonium chloride -> Aqua regia - Added connection: Nitric acid -> Aqua regia - Added connection: Ammonium chloride -> Hydrochloric acid - Added connection: Sulfuric acid -> Hydrochloric acid - Added connection: Ball-and-disk integrator -> Fire-control system 6 July 2025 - Added tech: Automated anti-aircraft fire-control system - Added tech: Box kite - Added tech: Kite experiment - Added tech: Kite - Added connection: Kite -> Box kite - Added connection: Kite -> Kite experiment - Added connection: Kite experiment -> Lightning rod - Added connection: Leyden jar -> Kite experiment - Added connection: Box kite -> Airplane - Added connection: Papermaking -> Kite - Added connection: Motorcycle -> Rotary engine - Added connection: Automated anti-aircraft fire-control system -> Computer-generated imagery 5 July 2025 - Added tech: Proportional counter - Added tech: Geiger counter - Added tech: Radial engine - Added tech: Rotary engine - Added connection: Radioactivity -> Geiger counter - Added connection: Geiger counter -> Proportional counter - Added connection: Tin can -> Hovercraft - Added connection: Handheld hair dryer -> Hovercraft - Added connection: Four-stroke engine -> Rotary engine - Added connection: Rotary engine -> Radial engine - Added connection: Radial engine -> Hovercraft - Added connection: Gasoline as fuel -> Airplane 4 July 2025 - Added tech: Leaded gasoline - Added tech: Gasoline as fuel - Added connection: Lead smelting -> Rechargeable battery - Added connection: Coal gas and gas lighting -> Four-stroke engine - Added connection: Kerosene -> Diesel engine - Added connection: Kerosene -> Gasoline as fuel - Added connection: Gasoline as fuel -> Leaded gasoline - Added connection: Gasoline as fuel -> Automobile - Added connection: Gasoline as fuel -> Shukhov cracking process - Added connection: Four-stroke engine -> Gasoline as fuel - Added connection: Gasoline as fuel -> Liquid-propellant rocket 1 July 2025 - Added tech: Alum - Added connection: Alum -> Aluminium 29 June 2025 - Added tech: Measles vaccine - Added connection: Polio vaccine -> Measles vaccine 27 June 2025 - Added tech: Virtual assistant - Added tech: Stealth aircraft - Added connection: Multi-touch smartphone -> Virtual assistant - Added connection: Speech recognition software -> Virtual assistant - Added connection: Long short-term memory -> Virtual assistant - Added connection: Convolutional neural network -> Virtual assistant - Added connection: Virtual assistant -> Smart speaker - Added connection: Surface-to-air missile -> Stealth aircraft - Added connection: Supercomputer -> Stealth aircraft - Added connection: Radar -> Stealth aircraft - Added connection: Fighter aircraft -> Stealth aircraft - Added connection: Statistical language model -> Speech recognition software 25 June 2025 - Added tech: Portable operating system - Added connection: Integrated circuit computer -> Computer mouse - Added connection: Operating system -> Portable operating system - Added connection: Time-sharing -> Portable operating system - Added connection: Lidar -> Robotaxi 24 June 2025 - Added tech: Computer mouse - Added tech: Baking powder - Added tech: Sodium bicarbonate - Added tech: Cream of tartar - Added connection: Cream of tartar -> Baking powder - Added connection: Sodium bicarbonate -> Baking powder 20 June 2025 - Added tech: Phage therapy - Added tech: Bacteriophages - Added tech: Benzene - Added connection: Discovery of viruses -> Bacteriophages - Added connection: Bacteriophages -> Phage display - Added connection: Bacteriophages -> Phage therapy - Added connection: Smallpox vaccine -> Bacteriophages - Added connection: Chamberland water filter -> Bacteriophages - Added connection: Neon -> Isotopes - Added connection: Public gas lighting -> Benzene 18 June 2025 - Added tech: Operating system - Added connection: Stored-program computer -> Operating system 16 June 2025 - Added tech: Electroconvulsive therapy - Added tech: Convulsive therapy - Added tech: Tuberculosis vaccine - Added connection: Smallpox vaccine -> Tuberculosis vaccine - Added connection: Convulsive therapy -> Electroconvulsive therapy 14 June 2025 - Added tech: Timpani - Added connection: Drum -> Timpani 13 June 2025 - Added tech: Palm-leaf manuscript - Added tech: Birch bark manuscript - Added tech: Ivory carving 12 June 2025 - Added tech: Antivirus software - Added tech: Philo's thermoscope - Added connection: Home computer -> Antivirus software - Added connection: Philo's thermoscope -> Thermoscope 11 June 2025 - Added tech: Autoclaved aerated concrete - Added tech: Discovery of viruses - Added tech: Chamberland water filter - Added tech: Autoclave - Added connection: Flute -> Western concert flute - Added connection: Modern Portland cement -> Autoclaved aerated concrete - Added connection: Pressure cooker -> Autoclave - Added connection: Autoclave -> Autoclaved aerated concrete - Added connection: Chamberland water filter -> Discovery of viruses - Added connection: Agar plate -> Discovery of viruses - Added connection: Tobacco -> Discovery of viruses 10 June 2025 - Added tech: Photonic crystal - Added tech: Genetic code - Added tech: Messenger RNA - Added tech: Petroleum jelly - Added connection: Photonic crystal -> Photonic-crystal fiber - Added connection: Kerosene -> Petroleum jelly - Added connection: Petroleum as fuel -> Petroleum jelly - Added connection: Messenger RNA -> mRNA vaccine - Added connection: DNA as the carrier of information -> Structure of DNA - Added connection: Structure of DNA -> Genetic code - Added connection: Central dogma of molecular biology -> Genetic code - Added connection: Central dogma of molecular biology -> Messenger RNA 9 June 2025 - v1.0.2: Display settings - Added tech: Bass guitar - Added tech: Lap steel guitar - Added tech: Double bass - Added tech: Marimba - Added connection: Marimba -> Marimbaphone - Added connection: Xylophone -> Marimba - Added connection: Double bass -> Bass guitar - Added connection: Modern guitar -> Lap steel guitar - Added connection: Lap steel guitar -> Electric guitar - Added connection: Lap steel guitar -> Bass guitar 8 June 2025 - Added tech: Cyanoacrylate - Added tech: Zoom lens - Added tech: Vibraphone - Added tech: Marimbaphone - Added tech: Corrugated fiberboard - Added tech: Trumpet with pistons - Added tech: Tuba - Added tech: Repeating circle - Added tech: Reflecting circle - Added tech: Cardboard - Added tech: Oboe - Added tech: Bassoon - Added tech: Dulcian - Added tech: Trombone - Added tech: Clavichord - Added tech: Shawm - Added tech: Buisine - Added connection: Papermaking -> Cardboard - Added connection: Cardboard -> Corrugated fiberboard - Added connection: Corrugated fiberboard -> Pre-cut cardboard box - Added connection: Movie camera -> Zoom lens - Added connection: Reflecting circle -> Repeating circle - Added connection: Telescope -> Reflecting circle - Added connection: Octant -> Reflecting circle - Added connection: Trumpet -> Buisine - Added connection: Buisine -> Trombone - Added connection: Marimbaphone -> Vibraphone - Added connection: Buisine -> Trumpet with pistons - Added connection: Buisine -> Tuba - Added connection: Pipe organ -> Clavichord - Added connection: Shawm -> Oboe - Added connection: Dulcian -> Bassoon - Added connection: Shawm -> Dulcian - Added connection: Aulos -> Shawm - Added connection: Violin, viola, and cello -> Double bass - Added connection: Viola da gamba -> Double bass 7 June 2025 - Added tech: Quantum annealing - Added tech: Transmon - Added tech: Charge qubit - Added tech: Flux qubit - Added tech: Mammal cloning - Added tech: Artificial heart - Added tech: SQUID - Added tech: Dilution refrigerator - Added tech: Josephson junction - Added tech: Animal cloning from adult cells - Added tech: Animal cloning - Added tech: Kroll process - Added tech: Helium-3 - Added tech: Tritium - Added tech: Nuclear fusion - Added tech: Deuterium - Added tech: Electric chainsaw - Added tech: Somatic cell nuclear transfer - Added tech: Hunter process - Added tech: Indium - Added tech: Bayonet - Added connection: Mammal cloning -> Induced pluripotent stem cell - Added connection: Titanium -> Hunter process - Added connection: Magnesium -> Kroll process - Added connection: Hunter process -> Kroll process - Added connection: Kroll process -> Lithium battery pacemaker - Added connection: Josephson junction -> SQUID - Added connection: Superconductors -> Josephson junction - Added connection: Magnetometer -> SQUID - Added connection: Quantum tunneling -> Josephson junction - Added connection: Somatic cell nuclear transfer -> Animal cloning - Added connection: Animal cloning from adult cells -> Mammal cloning - Added connection: Animal cloning -> Animal cloning from adult cells - Added connection: Frog pregnancy test -> Animal cloning from adult cells - Added connection: Transmon -> Quantum computer - Added connection: Dilution refrigerator -> Quantum computer - Added connection: Charge qubit -> Transmon - Added connection: Josephson junction -> Charge qubit - Added connection: Cyclotron -> Nuclear fusion - Added connection: Quantum tunneling -> Nuclear fusion - Added connection: Nuclear fusion -> Helium-3 - Added connection: Nuclear fusion -> Hydrogen bomb - Added connection: Helium-3 -> Dilution refrigerator - Added connection: Isotopes -> Helium-3 - Added connection: Isotopes -> Deuterium - Added connection: Deuterium -> Nuclear fusion - Added connection: Nuclear fusion -> Tokamak - Added connection: Hampson–Linde air liquefaction -> Deuterium - Added connection: Isotopes -> Tritium - Added connection: Mass spectrometer -> Deuterium - Added connection: Quantum tunneling -> Quantum annealing - Added connection: Flux qubit -> Quantum annealing - Added connection: Josephson junction -> Flux qubit - Added connection: Arquebus and matchlock -> Bayonet - Added connection: Indium -> Blue LED - Added connection: Chromatography -> DNA ligase 6 June 2025 - Added tech: Domestication of millet - Added connection: Irrigation -> Shaduf 5 June 2025 - v1.0.1: Changelog start - Added tech: Ostwald nitric acid process - Added tech: Leavened bread - Added tech: Domestication of potatoes - Added connection: Restriction enzymes -> DNA profiling - Added connection: Domestication of wheat -> Leavened bread - Added connection: Leavened bread -> Electric toaster - Added connection: Nitric acid -> Ostwald nitric acid process 4 June 2025 - Added tech: Advanced Encryption Standard - Added tech: Data Encryption Standard - Added tech: Hardware security module - Added tech: Modern cryptography - Added tech: One-time pad - Added tech: Frequency analysis - Added tech: Dhow - Added tech: Domestication of coconuts - Added connection: One-time pad -> Modern cryptography - Added connection: Information theory -> Modern cryptography - Added connection: Modern cryptography -> Public-key cryptography - Added connection: Automatic teller machine -> Hardware security module - Added connection: Public-key cryptography -> Digital currency - Added connection: Hardware security module -> Data Encryption Standard - Added connection: Data Encryption Standard -> Advanced Encryption Standard - Added connection: Modern cryptography -> Hardware security module - Added connection: Modern cryptography -> Data Encryption Standard - Added connection: Braille -> Optacon - Added connection: Lashed-lug boat building -> Dhow - Added connection: Domestication of coconuts -> Dhow - Added connection: Lateen and settee sail -> Dhow 3 June 2025 - Added tech: Paper clip - Added tech: Aniline - Added tech: Paddy field - Added connection: Domestication of rice -> Paddy field - Added connection: Indigo dye -> Aniline - Added connection: Aniline -> Paracetamol 2 June 2025 - Added tech: Laser cutting - Added tech: Carbon-dioxide laser - Added tech: Nd:YAG laser - Added connection: Eyeglasses -> Telescope - Added connection: Microlith -> Sickle - Added connection: Hafting -> Sickle - Added connection: Laser -> Carbon-dioxide laser - Added connection: Laser -> Nd:YAG laser - Added connection: Neodymium -> Nd:YAG laser - Added connection: Nd:YAG laser -> Laser cutting - Added connection: Carbon-dioxide laser -> Laser cutting 26 May 2025 - v1.0: First public release 9 November 2024 - v0.0: Start of app development