1. Who invented Vitamin A ?

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

2. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

3. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

4. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644

5. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747

6. Who invented Super Computer ?

Answer:

Seymour Cray

7. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen