a2zinterviews

Invention	Inventor	Country
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
Logarithms	Napier	Britain
HIV	Martagnier	French
Holography	Denis Gason	Britain
Hydrogen Bomb	Edward Teller	U.S.A.
Microphone	Alexander Graham Bell	U.S.A.
Microprocessor	Robert Noyce & Gordon Moore	U.S.A.
Safety Match	John Walker	Britain