1. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

2. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

3. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

4. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

5. Who invented Hydrogen bomb ?

Answer:

Edward Teller

6. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

7. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.