1. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

2. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

3. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

4. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

5. Who invented colour television ?

Answer:

Peter Carl Goldmark

6. Who invented Safety razor ?

Answer: King Camp Gillette of U.S.A. in 1903

7. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698