1. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

2. Who invented Ball-Point Pen ?

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

3. Who invented Transformer ?

Answer:

Ottó Bláthy

4. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

5. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

6. Who invented Safety razor ?

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

7. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm