A small airplane can fly backwards.
75
The first alarm clock could only ring at 4 a.m.
120
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Energy is being wasted if a toaster is left plugged in after use.
21
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
Any modern jet is capable of breaking the sound barrier.
34