1. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

2. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

3. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

4. Who invented Vitamin A ?

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

5. Who invented Super Computer ?

Answer:

Seymour Cray

6. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

7. Who invented Printing Press ?

Answer:

Johannes Gutenberg