1. Who invented Computer ?

Answer:

Charles Babbage

2. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

3. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

4. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

5. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

6. Who invented Vitamin A ?

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

7. Who invented Electron ?

Answer: Thomson. J of Britain in 1897