1. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

2. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

3. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

4. Who invented google ?

Answer:

Larry Page

5. Who invented Calculus ?

Answer: Newton of Britain in 1670.

6. Who invented Transformer ?

Answer:

Ottó Bláthy

7. Who invented Submarine ?

Answer:

John Philip Holland