1. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

2. Who invented Computer ?

Answer:

Charles Babbage

3. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

4. Who invented Vitamin A ?

Answer: Mc Collum and M.Davis of U.S.A. in 1913

5. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

6. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

7. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.