1. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

2. Who invented Calculus ?

Answer: Newton of Britain in 1670.

3. Who invented Helicopter ?

Answer:

Igor Sikorsky

4. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

5. Who invented Super Computer ?

Answer:

Seymour Cray

6. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

7. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932