1. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

2. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

3. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

4. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

5. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

6. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.

7. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm