1. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

2. Who invented Super Computer ?

Answer:

Seymour Cray

3. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

4. Who invented Stainless Steel ?

Answer: Harry Brearley of Britain in 1913.

5. Who invented Radiocarbon ?

Answer:

Willard Libby

6. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

7. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.