1. Who invented Radiocarbon ?

Answer:

Willard Libby

2. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

3. Who invented DNA Structure ?

Answer: Crick(UK), Waston(US), Wilkins(UK) in 1951

4. Who invented Piano ?

Answer:

Bartolomeo Cristofori

5. Who invented Calculus ?

Answer: Newton of Britain in 1670.

6. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

7. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.