1. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

2. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

3. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

4. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

5. Who invented Nylon ?

Answer:

Wallace Carothers

6. Who invented Vitamin A ?

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

7. Who invented by Electric Lamp ?

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