1. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

2. Who invented Transformer ?

Answer:

Ottó Bláthy

3. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

4. Who invented Atomic Bomb ?

Answer: J. Robert Oppenheimer of U.S.A. in 1945

5. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

6. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

7. Who invented Proton ?

Answer:

Ernest Rutherford