1. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

2. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

3. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

4. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

5. Who invented Hydrogen bomb ?

Answer:

Edward Teller

6. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

7. Who invented Automatic rifle ?

Answer: John Browning of U.S.A. in 1918.