1. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

2. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

3. Who invented colour television ?

Answer:

Peter Carl Goldmark

4. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist

5. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

6. Who invented Vitamin K ?

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

7. Who invented Laptop ?

Answer:

Adam Osborne in 1981.