1. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

2. Who invented Ball-Point Pen ?

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

3. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

4. Who invented HIV ?

Answer:

5. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

6. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

7. Who invented Laptop ?

Answer:

Adam Osborne in 1981.