1. Who invented paper ?

Answer:

Cai Lun

2. Who invented Nylon ?

Answer:

Wallace Carothers

3. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

4. Who invented DNA Structure ?

Answer: Crick(UK), Waston(US), Wilkins(UK) in 1951

5. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

6. Who invented Submarine ?

Answer:

John Philip Holland

7. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885