1. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

2. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

3. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

4. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

5. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747

6. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

7. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams