Important Inventions : 21. Who invented Electron ? Thomson. J of Britain in 1897 22. Who invented Floppy disk ? IBM in 1970 23. Who invented Neutron ? JAMES CHADWICK in 1932 24. Who invented Refrigerator ? James Harrison by Alexander catlin in 1850 25. Who invented Safety Pin ? Walter Hunt of U.S.A. in 1849 26. Who invented Safety razor ? King Camp Gillette of U.S.A. in 1903 27. Who invented Stainless Steel ? Harry Brearley of Britain in 1913. 28. Who invented Steam Engine ? Thomas Savery of Britain in 1698 29. Who invented Steam Engine (Piston) Thomas Newcomen of Britain in 1712 30. Who invented Steam Engine (Condenser) James Watt of Britain in 1765 31. Who invented watch? Bartholomew Manfredi of Italy in 1462. 32. Who invented Transformer ? Michael Faraday of Britain in 1831. 33. Who invented X-ray ? W.K. Roentgen of Germany in 1895. 34. Who invented Aspirin ? Dreser of Germany in 1889. 35. Who invented Chemotherapy ? Paracelsus of Switzerland 36. Who invented Bacteria ? Leeuwenhock of Netherlands in 1683 37. Who invented Biochemistry? Jan Baptista Van Helmont of Belgium in 1648. 38. Who invented Blood Transfusion ? Jean-Baptiste Denys of France in 1625. 39. Who invented Morphine ? Friderich Sertumer of Germany in 1805 40. Who invented Bakelite ? Leo H. Baekeland of Belgium in 1907. #Sukanya
Posted on: Thu, 13 Nov 2014 18:42:12 +0000
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