1. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

2. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

3. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

4. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

5. Who invented Ball-Point Pen ?

Answer: John J. Loud of U.S.A. in 1888

6. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

7. Who invented HIV ?

Answer: