1. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

2. Who invented c language

Answer:

Dennis Ritchie

3. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

4. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

5. Who invented Java Language ?

Answer:

James Gosling

6. Who invented Computer ?

Answer:

Charles Babbage

7. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765