1. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

2. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

3. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

4. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

5. Who invented Transformer ?

Answer:

Ottó Bláthy

6. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

7. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805