1. Who invented Calculus ?

Answer: Newton of Britain in 1670.

2. Who invented Radiocarbon ?

Answer:

Willard Libby

3. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

4. Who invented Vitamin D ?

Answer:

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

5. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

6. Who invented paper ?

Answer:

Cai Lun

7. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.