1. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.

2. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.

3. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

4. Who invented Vitamin A ?

Answer: Mc Collum and M.Davis of U.S.A. in 1913

5. Who invented Floppy disk ?

Answer: IBM in 1970

6. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

7. Who invented Safety razor ?

Answer: King Camp Gillette of U.S.A. in 1903