1. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

2. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

3. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

4. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

5. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

6. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

7. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist