The ball on top of a flagpole is called a 'truck'.
24
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
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