1. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

2. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

3. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

4. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

5. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

6. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

7. Who invented Ball-Point Pen ?

Answer: John J. Loud of U.S.A. in 1888