1. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

2. Who invented Calculus ?

Answer: Newton of Britain in 1670.

3. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

4. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

5. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

6. Who invented Stainless Steel ?

Answer: Harry Brearley of Britain in 1913.

7. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712