1. Who invented Floppy disk ?

Answer: IBM in 1970

2. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

3. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

4. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

5. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

6. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

7. Who invented Helicopter ?

Answer:

Igor Sikorsky