1. Who invented Calculus ?

Answer: Newton of Britain in 1670.

2. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

3. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

4. Who invented Java Language ?

Answer:

James Gosling

5. Who invented c language

Answer:

Dennis Ritchie

6. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

7. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903