1. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

2. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

3. Who invented Nylon ?

Answer:

Wallace Carothers

4. Who invented Calculus ?

Answer: Newton of Britain in 1670.

5. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

6. Who invented Hydrogen bomb ?

Answer:

Edward Teller

7. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504