1. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

2. Who invented Submarine ?

Answer:

John Philip Holland

3. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

4. Who invented Ball-Point Pen ?

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

5. Who invented Television ?

Answer:

John Logie Baird

6. Who invented DNA Structure ?

Answer: Crick(UK), Waston(US), Wilkins(UK) in 1951

7. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland