1. Who invented Calculus ?

Answer: Newton of Britain in 1670.

2. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

3. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

4. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

5. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

6. Who invented Floppy disk ?

Answer: IBM in 1970

7. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.