1. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

2. Who invented Transformer ?

Answer:

Ottó Bláthy

3. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

4. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

5. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

6. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

7. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland