1. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

2. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

3. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

4. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

5. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

6. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

7. Who invented Computer ?

Answer:

Charles Babbage