1. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

2. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644

3. Who invented Safety Pin ?

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

4. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747

5. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

6. Who invented Computer ?

Answer:

Charles Babbage

7. Who invented Ball-Point Pen ?

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