1. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

2. Who invented Laser ?

Answer:

Charles H. Townes

3. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644

4. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

5. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

6. Who invented google ?

Answer:

Larry Page

7. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698