1. Who invented Vitamin D ?

Answer:

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

2. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

3. Who invented Hydrogen bomb ?

Answer:

Edward Teller

4. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

5. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

6. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

7. Who invented Vitamin A ?

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