1. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

2. Who invented Floppy disk ?

Answer: IBM in 1970

3. Who invented Piano ?

Answer:

Bartolomeo Cristofori

4. Who invented HIV ?

Answer:

5. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

6. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

7. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.