1. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

2. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747

3. Who invented Safety Pin ?

Answer: Walter Hunt of U.S.A. in 1849

4. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

5. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

6. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

7. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.