The first alarm clock could only ring at 4 a.m.
120
The cigarette lighter was invented before the match.
210
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
Future biotechnology could be used to trick a prisoner's mind into thinking they have served a 1,000 year sentence in only eight hours, a group of scientists have claimed.
0
A toaster uses almost half as much energy as a full-sized oven.
33
