Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
A small airplane can fly backwards.
75
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
Kleenex tissues were originally used as filters in gas masks.
46
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
Whale oil was used in automobile transmissions as late as 1973.
56
The first alarm clock could only ring at 4 a.m.
120