IMPORTANT INVENTIONS OF SCIENCE |
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| 1.Electric Lamp-Bulb | Edison | |
| 2.Gramophone | Edison | |
| 3.Television | J.L.Baird | |
| 4.Radio | Marconi | |
| 5.Airplane | Wright Brother | |
| 6.Sewing Machine | Howe Elias | |
| 7.Railway Engine | Stephenson | |
| 8.Safety Lamp | Davy | |
| 9.Dynamite | Alfred Nobel | |
| 10.Penicillin | Alexander Fleming | |
| 11.Telescope | Galileo | |
| 12.Fountain Pen | Waterman | |
| 13.Telephone | Graham Bell | |
| 14.Revolver | Colt | |
| 15.X-Rays | Roentgen | |
| 16.Law of Gravitation | Newton | |
| 17.Radium | Madam Curie | |
| 18.Atom Bomb | Otto Hahn | |
| 19.Theory of Relativity | Einstein | |
| 20.Computer | Charles Babbage | |
| 21.World Wide Web(WWW) | Lin Fiona | |
