1. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

2. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

3. Who invented Laser ?

Answer:

Charles H. Townes

4. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

5. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

6. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

7. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.