1. Who invented Helicopter ?

Answer:

Igor Sikorsky

2. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

3. Who invented Super Computer ?

Answer:

Seymour Cray

4. Who invented Vitamin A ?

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

5. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

6. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

7. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912