1. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948

2. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

3. Who invented Atomic Bomb ?

Answer: J. Robert Oppenheimer of U.S.A. in 1945

4. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

5. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

6. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

7. Who invented Printing Press ?

Answer:

Johannes Gutenberg