1. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

2. Who invented Vitamin A ?

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

3. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.

4. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

5. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

6. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

7. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765