1. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

2. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

3. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

4. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

5. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

6. Who invented Radiocarbon ?

Answer:

Willard Libby

7. Who invented Piano ?

Answer:

Bartolomeo Cristofori