1. Who invented DNA Structure ?

Answer: Crick(UK), Waston(US), Wilkins(UK) in 1951

2. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

3. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

4. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

5. Who invented Television ?

Answer:

John Logie Baird

6. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

7. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.