1. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

2. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

3. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

4. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

5. Who invented DNA Structure ?

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

6. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.

7. Who invented Hydrogen bomb ?

Answer:

Edward Teller