1. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

2. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

3. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

4. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

5. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

6. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

7. Who invented DNA Structure ?

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