1. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

2. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

3. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

4. Who invented Computer ?

Answer:

Charles Babbage

5. Who invented Stainless Steel ?

Answer: Harry Brearley of Britain in 1913.

6. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

7. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902