1. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

2. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

3. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

4. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

5. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.

6. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

7. Who invented Stethoscope ?

Answer: Laennec of French in 1819.