1. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

2. Who invented Nylon ?

Answer:

Wallace Carothers

3. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

4. Who invented Transformer ?

Answer:

Ottó Bláthy

5. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

6. Who invented Radiocarbon ?

Answer:

Willard Libby

7. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644