1. Who invented Calculus ?

Answer: Newton of Britain in 1670.

2. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

3. Who invented Computer ?

Answer:

Charles Babbage

4. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

5. Who invented colour television ?

Answer:

Peter Carl Goldmark

6. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

7. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.