1. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

2. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

3. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

4. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

5. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

6. Who invented Transformer ?

Answer:

Ottó Bláthy

7. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.