1. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

2. Who invented c language

Answer:

Dennis Ritchie

3. Who invented DNA Structure ?

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

4. Who invented Stainless Steel ?

Answer: Harry Brearley of Britain in 1913.

5. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

6. Who invented HIV ?

Answer:

7. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.