1. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

2. Who invented X-ray ?

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

3. Who invented Transformer ?

Answer:

Ottó Bláthy

4. Who invented Radiocarbon ?

Answer:

Willard Libby

5. Who invented c language

Answer:

Dennis Ritchie

6. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

7. Who invented Laser ?

Answer:

Charles H. Townes