1. Who invented Safety Pin ?

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

2. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747

3. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

4. Who invented Radiocarbon ?

Answer:

Willard Libby

5. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

6. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

7. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.