1. Who invented Proton ?

Answer:

Ernest Rutherford

2. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

3. Who invented Ball-Point Pen ?

Answer: John J. Loud of U.S.A. in 1888

4. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

5. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

6. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747

7. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.