1. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

2. Who invented X-ray ?

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

3. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.

4. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

5. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

6. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

7. Who invented Stethoscope ?

Answer: Laennec of French in 1819.