| # | Invention | Inventor | Country | Year |
| 1 | Adding Machine | Pascal | France | 1642 |
| 2 | Aeroplane | Wright brothers | USA | 1903 |
| 3 | Balloon | Jacques and Joseph Montgolfier | France | 1783 |
| 4 | Ball –Point pen | C. Biro | Hungary | 1938 |
| 5 | Barometer | E. Torricelli | Italy | 1644 |
| 6 | Bicycle | K. Macmillan | Scotland | 1839 |
| 7 | Bicycle Tyre | J.B. Dunlop | Scotland | 1888 |
| 8 | Calculating Machine | Pascal | France | 1642 |
| 9 | Centrigrade Scale | A.Celsius | France | 1742 |
| 10 | Cinematograph | Thomas Alva Edison | USA | 1891 |
| 11 | Computer | Charles Babbage | Britain | 1834 |
| 12 | Cine Camera | Friese-Greene | Britain | 1889 |
| 13 | Cinema | A.L. and J.L. Lumiere | France | 1895 |
| 14 | Clock (Machanical) | Hsing and Ling –Tsan | China | 1725 |
| 15 | Clock (Pendulum) | C. Hugyens | Netherlands | 1657 |
| 16 | Diesel engine | Rudolf diesel | Germany | 1892 |
| 17 | Dynamite | Alfred Nobel | Sweden | 1867 |
| 18 | Dynamo | Michael Faraday | England | 1831 |
| 19 | Electric Iron | H.W. Seeley | USA | 1882 |
| 20 | Electric lamp | Thomas Alva Edison | USA | 1879 |
| 21 | Electromagnet | W. sturgeon | England | 1824 |
| 22 | Evolution (theory) | Charles Darwin | England | 1858 |
| 23 | Film (with sound) | Dr. Lee de forest | USA | 1923 |
| 24 | Fountain Pen | LE. Waterman | USA | 1884 |
| 25 | Gas Lighting | William Murdoch | Scotland | 1794 |
| 26 | Gramophone | T.A . Edison | USA | 1878 |
| 27 | Jet Engine | Sir Frank whittle | England | 1937 |
| 28 | Lift | E.G. Otis | USA | 1852 |
| 29 | Locomotive | Richard Trevithick | England | 1804 |
| 30 | Machine Gun | Richard Gatling | USA | 1861 |
| 31 | Match (Safety) | J.E. Lurdstrom | Sweden | 1855 |
| 32 | Microphone | David Hughes | USA | 1878 |
| 33 | Microscope | Z. Jansen | Netherlands | 1590 |
| 34 | Motor Car (Petrol) | Karl –Benz | Germany | 1885 |
| 35 | Motorcycle | Edward Butler | England | 1884 |
| 36 | Neon -Lump | G. Claude | France | 1915 |
| 37 | Nylon | Dr W.H. Carothers | USA | 1937 |
| 38 | Photography (Paper) | W.H. Fox Tablot | England | 1835 |
| 39 | Printing Press | J. Gutenberg | Germany | 1455 |
| 40 | Rader | Dr A.H. Taylor and L.C. young | USA | 1922 |
| 41 | Radium | Marie and Pierre Curie | France | 1898 |
| 42 | Radio | G. Marconi | England | 1901 |
| 43 | Rayon | American viscose Co. | USA | 1910 |
| 44 | Razor (Safety) | K.G. Gillette | USA | 1895 |
| 45 | Razor (electric) | Col. J. Schick | USA | 1931 |
| 46 | Refrigerator | J . Harrison and A. Catlin | Britain | 1834 |
| 47 | Revolver | Samuel Colt | USA | 1835 |
| 48 | Rubber (Vulcanized) | Charles Good year | USA | 1841 |
| 49 | Rubber (Waterproof) | Charles Macintosh | Scotland | 1819 |
| 50 | Safety Lamp | Sir Humphrey | England | 1816 |
| 51 | Safety pin | William Hurst | USA | 1849 |
| 52 | Sewing Machine | B. Thimmonnier | France | 1830 |
| 53 | Scooter | G. Bradshaw | England | 1919 |
| 54 | Ship ( Steam) | J.C. Perier | France | 1775 |
| 55 | Ship ( turbine) | Sir Charles parsons | Britain | 1894 |
| 56 | Shorthand (Modem) | Sir Issac Pitman | Britain | 1837 |
| 57 | Spinning jenny | James Hargreaves | England | 1764 |
| 58 | Steam engine (Piston) | Thomas Newcome | Britain | 1712 |
| 59 | Steam engine ( Condenser) | James Watt | Scotland | 1765 |
| 60 | Steel production | Henry Bessemer | England | 1855 |
| 61 | Stainless steel | Harry Brearley | England | 1913 |
| 62 | Tank | Sir Ernest Swington | England | 1914 |
| 63 | Telegraph code | Samuel F.B. Morse | USA | 1837 |
| 64 | Telephone | Alexander Graham Bell | USA | 1876 |
| 65 | Telescope | Hans Lippershey | Netherlands | 1608 |
| 66 | Television | John logie bared | Scotland | 1926 |
| 67 | Terylene | J. Whinfield and H. Dickson | England | 1941 |
| 68 | Thermoscope | Galileo Galilei | Italy | 1593 |
| 69 | Tractor | J. Froelich | USA | 1892 |
| 70 | Transistor | Bardeen, Shockley | USA & UK | 1949 |
| 71 | Typewriter | C. Sholes | USA | 1868 |
| 72 | Valve of radio | Sir J.A. ‘fleming | Britain | 1904 |
| 73 | Watch | A.L. Breguet | France | 1791 |
| 74 | X-ray | Wilhelm Roentgen | Germany | 1895 |
| 75 | Zip fastener | W.L. Judson | USA | 1891 |
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