1. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

2. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

3. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

4. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

5. Who invented Safety razor ?

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

6. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

7. Who invented Transformer ?

Answer:

Ottó Bláthy