1. Who invented Hydrogen bomb ?

Answer:

Edward Teller

2. Who invented Calculus ?

Answer: Newton of Britain in 1670.

3. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

4. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

5. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

6. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

7. Who invented Stethoscope ?

Answer: Laennec of French in 1819.