1. Who invented Vitamin A ?

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

2. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

3. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

4. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

5. Who invented google ?

Answer:

Larry Page

6. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

7. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504