Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
A small airplane can fly backwards.
75
The ball on top of a flagpole is called a 'truck'.
24
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
