1. Who invented Television ?

Answer:

John Logie Baird

2. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

3. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

4. Who invented paper ?

Answer:

Cai Lun

5. Who invented Submarine ?

Answer:

John Philip Holland

6. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

7. Who invented Helicopter ?

Answer:

Igor Sikorsky