1. Who invented Laser ?

Answer:

Charles H. Townes

2. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

3. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948

4. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747

5. Who invented Proton ?

Answer:

Ernest Rutherford

6. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

7. Who invented Helicopter ?

Answer:

Igor Sikorsky