1. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

2. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

3. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

4. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

5. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

6. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

7. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.