1. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

2. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

3. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

4. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

5. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

6. Who invented Printing Press ?

Answer:

Johannes Gutenberg

7. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895