1. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747

2. Who invented Vitamin A ?

Answer: Mc Collum and M.Davis of U.S.A. in 1913

3. Who invented Submarine ?

Answer:

John Philip Holland

4. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

5. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

6. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

7. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.