1. Who invented Proton ?

Answer:

Ernest Rutherford

2. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

3. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

4. Who invented Piano ?

Answer:

Bartolomeo Cristofori

5. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

6. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

7. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.