1. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

2. Who invented Atomic Bomb ?

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

3. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

4. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

5. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

6. Who invented HIV ?

Answer:

7. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683