1. Who invented Piano ?

Answer:

Bartolomeo Cristofori

2. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

3. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

4. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

5. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

6. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

7. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712