1. Who invented Submarine ?

Answer:

John Philip Holland

2. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.

3. Who invented colour television ?

Answer:

Peter Carl Goldmark

4. Who invented Printing Press ?

Answer:

Johannes Gutenberg

5. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

6. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

7. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903