1. Who invented Helicopter ?

Answer:

Igor Sikorsky

2. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

3. Who invented Computer ?

Answer:

Charles Babbage

4. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

5. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

6. Who invented Transformer ?

Answer:

Ottó Bláthy

7. Who invented Radar ?

Answer:

Sir Robert Watson-Watt