1. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

2. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

3. Who invented Radiocarbon ?

Answer:

Willard Libby

4. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

5. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948

6. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

7. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.