1. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

2. Who invented Radiocarbon ?

Answer:

Willard Libby

3. Who invented Super Computer ?

Answer:

Seymour Cray

4. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.

5. Who invented Computer ?

Answer:

Charles Babbage

6. Who invented Floppy disk ?

Answer: IBM in 1970

7. Who invented Submarine ?

Answer:

John Philip Holland