1. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

2. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

3. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist

4. Who invented Safety razor ?

Answer: King Camp Gillette of U.S.A. in 1903

5. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

6. Who invented Transformer ?

Answer:

Ottó Bláthy

7. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902