1. Who invented paper ?

Answer:

Cai Lun

2. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

3. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

4. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

5. Who invented Java Language ?

Answer:

James Gosling

6. Who invented colour television ?

Answer:

Peter Carl Goldmark

7. Who invented Stethoscope ?

Answer: Laennec of French in 1819.