1. Who invented paper ?

Answer:

Cai Lun

2. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

3. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

4. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

5. Who invented DNA Structure ?

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

6. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

7. Who invented Super Computer ?

Answer:

Seymour Cray