1. Who invented Ball-Point Pen ?

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

2. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

3. Who invented colour television ?

Answer:

Peter Carl Goldmark

4. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

5. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

6. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

7. Who invented Vitamin K ?

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