1. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

2. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

3. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

4. Who invented Laser ?

Answer:

Charles H. Townes

5. Who invented Printing Press ?

Answer:

Johannes Gutenberg

6. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

7. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805