1. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

2. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

3. Who invented Atomic Bomb ?

Answer: J. Robert Oppenheimer of U.S.A. in 1945

4. Who invented google ?

Answer:

Larry Page

5. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

6. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

7. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712