1. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

2. Who invented Super Computer ?

Answer:

Seymour Cray

3. Who invented Vitamin K ?

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

4. Who invented Computer ?

Answer:

Charles Babbage

5. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

6. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

7. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.