The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
The first alarm clock could only ring at 4 a.m.
120
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
A small airplane can fly backwards.
75
The Queen Mary - the grandest vessel of her day - had many of her vital components made by car manufacturer Skoda!
23
There are only 14 blimps in the world.
69
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250