1. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

2. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

3. Who invented Vitamin D ?

Answer:

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

4. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

5. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

6. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

7. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.