1. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

2. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

3. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644

4. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

5. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

6. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.

7. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765