1. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

2. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

3. Who invented Super Computer ?

Answer:

Seymour Cray

4. Who invented Television ?

Answer:

John Logie Baird

5. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

6. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

7. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747