1. Who invented Calculus ?

Answer: Newton of Britain in 1670.

2. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948

3. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

4. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

5. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

6. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

7. Who invented Proton ?

Answer:

Ernest Rutherford