1. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

2. Who invented Vitamin A ?

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

3. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

4. Who invented Submarine ?

Answer:

John Philip Holland

5. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

6. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.

7. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.