1. Who invented Hydrogen bomb ?

Answer:

Edward Teller

2. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

3. Who invented colour television ?

Answer:

Peter Carl Goldmark

4. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

5. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

6. Who invented Safety Pin ?

Answer: Walter Hunt of U.S.A. in 1849

7. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.