1. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

2. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

3. Who invented Java Language ?

Answer:

James Gosling

4. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

5. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

6. Who invented Helicopter ?

Answer:

Igor Sikorsky

7. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.