1. Who invented Vitamin D ?

Answer:

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

2. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

3. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

4. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist

5. Who invented Laser ?

Answer:

Charles H. Townes

6. Who invented colour television ?

Answer:

Peter Carl Goldmark

7. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805