1. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

2. Who invented Safety Pin ?

Answer: Walter Hunt of U.S.A. in 1849

3. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747

4. Who invented Helicopter ?

Answer:

Igor Sikorsky

5. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

6. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

7. Who invented Calculus ?

Answer: Newton of Britain in 1670.