1. Who invented Submarine ?

Answer:

John Philip Holland

2. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

3. Who invented Super Computer ?

Answer:

Seymour Cray

4. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

5. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

6. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

7. Who invented Television ?

Answer:

John Logie Baird