1. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

2. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

3. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

4. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

5. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

6. Who invented Radiocarbon ?

Answer:

Willard Libby

7. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747