| Inventions and Discoveries | Inventor |
| Air Brake | George Westinghouse |
| Aniline Dyes | Hoffman |
| Adding Machine | Balise Pascal |
| Aeroplane | Wright Brothers |
| Air Conditioner | Carrier |
| Atom Bomb | Otto Hahn |
| Aspirin | Dreser |
| Alcohol Thermometer | Farenheit |
| Atomic Thermometer | Bohr |
| Atomic Theory | Dalton |
| Atomic Number | Mosley |
| Atomic Structure | Bohr and Rutherford |
| Automobile | Daimler |
| Antiseptic Surgery | Lord Joseph Lister |
| Archimedean Screw | Archimedies |
| Avogadro's Hypothesis | Avogadro |
| Ball Pen | Loud |
| Balloon | Montogolfier |
| Blood Circulation | Harvey |
| Barometer | Torricelli |
| Bicycle | MacMillan |
| Braily System | Louis Braille |
| Beri-Beri | Eijkman |
| Blood Circulation | Harvey |
| Boson | S.N. Bose |
| Boyle's law | Boyle |
| Braille | Louis Braille |
| Computer | Charles Babbage |
| Chloroform | James Young Simpson |
| Cinema | Lumiere Brothers |
| Cinema Projector | Thomas Alva Edison |
| Crescograph | J.C. Bose |
| Celluloid | Parkes |
| Chloroform | James Harrison and James Young Simpson |
| Cholera Bacillus | Robert Koch |
| Coloured Photography | Lippman |
| Cosmic Rays | R.A. Millikan |
| Cyclotron | Lawrence |
| Diesel Engine | Rudolf Diesel |
| Dynamo | Michael Faraday |
| Dynamite | Alfred Nobel |
| Deuterium (Heavy Water) | H.C. Urey |
| Diesel Oil Engine | Rudolf Diesel |
| Discovery of Solar System | Copernicus (1540) |
| Discovery of Specific Gravity | Archimedes |
| Electric Battery | Volta |
| Electric Lamp | Edison |
| Electricity | Faraday |
| Electron Theory | Bohr |
| Electrical Waves | Helix |
| Electrical Measurement | Gauss |
| DDT | Dr. Paul Muller |
| Electron | J.J. Thompson |
| Electric Lamp | Thomas Alva Edison |
| Elevator | Elisha G Otis |
| Fountain Pen | Waterman |
| Fahrenheit Scale | Fahrenheit |
| Film & Photographic goods | Kodak |
| Glider | George Cayley |
| Generator | Picionitti |
| Gramaphone | Thomas Alva Edison |
| Gun Powder | Roger Bacon |
| Geometry | Euclid |
| Hydrogen | Cavendish |
| Helicopter | Broquett |
| Helium Gas | Lockyer |
| Homeopathy | Hahnemann |
| Hovercraft | Cockrell |
| Hydrophobia | Louis Pasteur |
| Jet Engine | Sir Frank Whittle |
| Intelligence Tests | Binet |
| Insulin | F. Banting |
| Induction of Electric Current | Faraday |
| Incandescent Bulb | Edison |
| Induction Coil | Rohm Korff |
| Jet Propulsion | Frank Whittle |
| Law of Gravitation | Issac Newton |
| Law of Heredity | G. Mendal |
| Laser | Theodore Maiman |
| Lightning Conductor | Benjamin Franklin |
| Logarithm | John Napier |
| Laughing Gas | Priestley |
| Life Boat | Henry Grea |
| Lift (Elevators) | Otis |
| Linotype | Mergenthaler |
| Line of demarcation (ship) | Plimsoll |
| Laws of Electrical Resistance | Ohm |
| Law of Electrolysis | Faraday |
| Law of gases | Gay Lussac |
| Laws of Gravitation | Newton |
| Laws of Heredity | Gregory Mandel |
| Laws of Motion | Newton |
| Laws of Natural Selections | Darwin |
| Laws of Multiple Proportion | Dalton |
| Liquid Oxygen | Dewar |
| Machine Gun | Dr. Richard Gattling |
| Maser | Charles H. Townes |
| Microphone | Graham Bell |
| Measurement of | Joule |
| Electrical Energy | James Prescoft |
| Meson | Hideki Yakawa |
| Microscope | Janes |
| Molecular Scattering of light in fluid | Ramanathan |
| Neon Gas | Ramsay, Travers |
| Neutron | Chadwick |
| Nuclear Fission | Otto Hahn, Bohr and Fermi |
| Nylon Plastic | Carothers |
| Oxygen | J.B. Preistley |
| Origin of Species | Charles Darwin |
| Parachute | A.J. Garnerian |
| Pencillin | Alexander Fleming |
| Photography (Film) | John Carbutt |
| Periodic Law | Mendeleef |
| Phonograph | Edison |
| Phonographic Shorthand | Pitman |
| Photograph |
Dauguerre
|
| Principle for lever (S.P. Gravity) | Archimedes |
| Phototherapy | N.R. Finsen |
| Positive Electrons | Anderson |
| Powerloom | Cartwright |
| Pneumatic Tyre | Dunlop |
| Printing for the Blind | Braille |
| Printing Press | Caxton |
| Printing Types | John Guttenberg |
| Psycho-analysis | Dr. Sigmund Freud |
| Rayon | Sir Joseph Swan |
| Radio activity of Uranium | Henry Becquerel |
| Raman effect | C.V. Raman |
| Radium | Madame Curie |
| Railway Engine | Stephenson |
| Radio transmitter | Alexanderson |
| Rare Gas | Cavandish |
| Replacing human heart | Christian Barnard |
| Revolver | Colt |
| Quantum Theory | Max Plank |
| Refrigerator | James Harrison |
| Safety Lamp | Humphry Davy |
| Safety Match | Land Strom |
| Safety Pin | William Hunt |
| Safety Razor | Gillette |
| Sewing Machine | Barthelling Thimonnier |
| Short Hand | Pitman |
| Solar System | Copernicus |
| Steam Engine | James Watt |
| Steam Turbine | Parsons |
| Spectroscope | Bunsen |
| Stethoscope | Rene Laennee |
| Submarine | David Bushnell |
| Seismorgraph | Robert Mallet |
| Sextant | Hadley |
| Steam Boat | Fulton |
| Submarine | Bushwell |
| Talkies | Lee-de-Frost |
| Tank | Swinton |
| Telegraphy | William F.cooke & Charles Wheatstone |
| Telegraph Code | Morse |
| Telephone | Alexander Graham Bell |
| Telescope | Galileo |
| Television | J.L. Baird |
| Thermosflask | Dewar |
| Transistor | Shockly and Bardeen |
| Typewriter | Sholes |
| Theory of Evolution | Charles Darwin |
| Theory of Relativity | Albert Einstein |
| Uranium Fusion | Otto Hahn |
| Uranus (Planet) | Herschel William |
| Vaccination | Jenner |
| Vaccum Flask | Sir James Dewar |
| Vulcanisation | Good Year |
| Washing Soda | Lablanc |
| Wireless Communication | Oliver Lodge |
| Wireless Telegraphy | Marcony |
| Wireless | Marconi |
| X-ray | W.C. Rontgen |
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