Inventions and Discoveries Online Test | Gk Questions and Answers - 1
Invention | Inventor | Country |
Atomic rifle | John Browning | U.S.A. |
Submarine | David Bushnell | U.S.A. |
Stethoscope | Laennec | French |
Steel (Stainless) | Harry Brearley | Britain |
Steam Engine ( Condenser) | James Watt | Britain |
Steam Engine (Pisten) | Thomas Newcomen | Britain |
Spinning Frame | Sir Richard Arkwright | Britain |
Spinning Jenny | James Hargreaves | Britain |
Spinning Mule | Samuel Crompton | Britain |
Steam Engine | Thomas Savery | Britain |
Photo Film, Celluloid | Reichenbach | U.S.A. |
Photo File, Transparent | Goodwin Eastman | U.S.A. |
Photography (on metal) | J.N. Niepce | France |
Photography (on paper) | W.H. Fox Talbot | Britain |
Photography (on film) | John Carbutt | U.S.A. |
Piano | Cristofori | Italy |
Pistol, revolver | Colt | U.S.A. |
Plutonium Fission | Kennedy, Whal, Seaborg, Segre | U.S.A. |
Pop-up Toaster | Charles Strite | U.S.A. |
Printing Press | Johann Gutenberg | Germany |
Printing (rotary) | Richard Hoe | U.S.A. |
Printing Web | William Bullock | U.S.A. |
Proton | Rutherford | New Zealand |
Radar | A.H. Taylor & Leo C. Young | U.S.A. |
Quantum Theory | Plank | Germany |
Radiocarbon Dating | Libby | U.S.A. |
Radio Telegraphy | G.Marconi | Italy |
Radio Telegraphy | Dr. Mohlon Loomis | U.S.A. |
Rayon | Sir Joseph Swan | Britain |
Razor (Electric) | Col. Jacob Schick | U.S.A. |
Razor (Safety) | King C. Gillette | U.S.A. |
Refrigerator | James Harrision, Alexander Catin | U.S.A. |
Relativity Theory | Einstein | Germany |
Rubber (latex foam) | Dunlop Rubber Co | Britain |
Rubber (Tyres) | Thomas Hancock | Britain |
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