1. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

2. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

3. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

4. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

5. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

6. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

7. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.