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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Inventions and Discoveries Online Test | Gk Questions and Answers - 1

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