1. Who invented Ball-Point Pen ?

Answer: John J. Loud of U.S.A. in 1888

2. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

3. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

4. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

5. Who invented Television ?

Answer:

John Logie Baird

6. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist

7. Who invented Radiocarbon ?

Answer:

Willard Libby