1. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

2. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

3. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

4. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

5. Who invented Super Computer ?

Answer:

Seymour Cray

6. Who invented Stainless Steel ?

Answer: Harry Brearley of Britain in 1913.

7. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland