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general-knowledge Related Question Answers
276. Cyclotron was invented by _____ in year ____ ?
Picinotti, 1860 James Ritty, 1876 Vanghan, 1794 E.O.Lawrence, 1931
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277. Cement,Portland was invented by _____ in year ____ ?
James Watt, 1765 Berliner, 1887 Parkins, 1834 Henri Chretien, 1931
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278. Computer (Digital) was invented by _____ in year ____ ?
Nikolaus Otto, 1876 Robert Fulton, 1803 E.Swinton, 1914 Howard Aiken, 1944
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279. Transistor was invented by _____ in year ____ ?
Sir H.Bessemer, 1856 Birdseye, 1925 G.Goodyear, 1839 Bardeen, Shockley, Brattain, 1947
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280. Laser was invented by _____ in year ____ ?
G.Stephenson, 1825 Rudolf Diesel, 1895 Elias Howe, 1866 T.H.Mainman, 1960
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281. Spectacles (Curved glass) was invented by _____ in year ____ in _____ ?
T.A. Edison, 1879 , U.S.A. T.A.Edison, 1893 , U.S.A. L.E.Waterman, 1884 , U.S.A. Salvino Armado, 1285 , Italy
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282. Printing Press was invented by _____ in year ____ in _____ ?
Colt, 1835 , U.S.A. B.Holt, 1900 , U.S.A. Louis Daguerre, 1837 , France Caxton, 1450 , Germany
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283. Watch (Main Spring) was invented by _____ in year ____ in _____ ?
Salvino Armado, 1285 , Italy L.H.Backeland, 1907 , U.S.A. W.K.Roentgen, 1895 , Germany Peter Henlein, 1500 , Germany
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284. Microscope was invented by _____ in year ____ in _____ ?
John M.Browning, 1918 , U.S.A. T.A.Edison, 1893 , U.S.A. G.Westinghouse, 1868 , U.S.A. Z.Jansen, 1590 , Netherlands
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285. Telescope was invented by _____ in year ____ in _____ ?
Sir H.Bessemer, 1856 , England E.O.Lawrence, 1931 , U.S.A. E.A.Sperry, 1905 , U.S.A. Galiles, 1609 , Italy
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286. Barometer was invented by _____ in year ____ in _____ ?
Hoze Ladislao Biro, 1930 , Argentina Greville Bradshaw, 1919 , England Galiles, 1609 , Italy E.Torricelli, 1643 , Italy
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287. Air Pump was invented by _____ in year ____ in _____ ?
Robert Bunsen, 1855 , Germany Berliner, 1877 , U.S.A. Rudolf Diesel, 1895 , Germany Von Guerick, 1650 , Germany
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288. Clock,Pendulum was invented by _____ in year ____ in _____ ?
Galiles, 1609 , Italy John W.Hyatt, 1869 , U.S.A. Karl Benz, 1885 , Germany G.Huygens, 1656 , Netherlands
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289. Blast furnace was invented by _____ in year ____ in _____ ?
Louis Daguerre, 1837 , France Dunlop, 1888 , North ireland Burroughs, 1885 , U.S.A. Abraham,Darby, 1700 , United Kingdom
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290. Thermometer,Mercuric was invented by _____ in year ____ in _____ ?
Samuel Morse, 1832 , U.S.A. C.McCormick, 1834 , U.S.A. W.H.Carrier, 1911 , U.S.A. G.D.Fahrenheit, 1714 , Germany
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291. Steam Engine was invented by _____ in year ____ in _____ ?
Glen Curtiss, 1911 , U.S.A. G.Daimler, 1885 , Germany Howard Aiken, 1944 , U.S.A. James Watt, 1765 , Scotland
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292. Spinning Jenny was invented by _____ in year ____ in _____ ?
John L.Baird, 1926 , Scotland W.Sturgeon, 1825 , England J.Dewar, 1892 , England J.Hargreaves, 1767 , England
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293. Watch (Self winding) was invented by _____ in year ____ in _____ ?
T.A. Edison, 1879 , U.S.A. John Walker, 1827 , England Henri Chretien, 1931 , France Lewis Recordon, 1780 , England
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294. Baloon was invented by _____ in year ____ in _____ ?
Bardeen, Shockley, Brattain, 1947 , U.S.A. W.L.Judson, 1891 , U.S.A. James Watt, 1765 , Scotland Montgolfier Bros., 1783 , France
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295. Parachute was invented by _____ in year ____ in _____ ?
L.E.Waterman, 1884 , U.S.A. G.D.Fahrenheit, 1714 , Germany Salvino Armado, 1285 , Italy F.Blanchard, 1785 , France
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296. Cotton Gin was invented by _____ in year ____ in _____ ?
Z.Jansen, 1590 , Netherlands C.McCormick, 1834 , U.S.A. E.A.Sperry, 1905 , U.S.A. Eli Whitney, 1793 , U.S.A.
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297. Ball-Bearing was invented by _____ in year ____ in _____ ?
E.G.Otis, 1857 , U.S.A. Louis Daguerre, 1837 , France Hoze Ladislao Biro, 1930 , Argentina Vanghan, 1794 , Britain
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298. Locomotive,Steam was invented by _____ in year ____ in _____ ?
Henri Chretien, 1931 , France Picinotti, 1860 , Italy C.McCormick, 1834 , U.S.A. R.Trevithick, 1801 , England
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299. Steamboat was invented by _____ in year ____ in _____ ?
Berliner, 1887 , U.S.A. Eli Whitney, 1793 , U.S.A. Vanghan, 1794 , Britain Robert Fulton, 1803 , U.S.A.
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300. Safety Lamp was invented by _____ in year ____ in _____ ?
R.J.Gatting, 1861 , U.S.A. Macmillan, 1842 , Scotland T.A.Edison, 1893 , U.S.A. Sir H.Davy, 1816 , England
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