11. Who is known as the father of the computers?
Joseph M. Jacquard
12. Who invented the X-ray?
13. British scientist William Sturgeon invented:
14. In which year, Alexander Graham Bell got U.S. patent for the telephone?
15. Who is one of the inventors of the mechanical television?
John Logie Baird
16. Who is the inventor of the first automobile powered by an IC engine?
17. Who is considered the 'father of the cell phone'?
Alexander Graham Bell
18. Which country developed the first thermonuclear weapon?
19. Who invented Mills bomb?
20. How long did the first flight (by Orville Wright) last?