An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Google founders Sergey Brin and Larry Page have expressed their desire to see the search engine become artificial intelligence itself. To achieve that goal, they created the highly-protected “X lab.”
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The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Energy is being wasted if a toaster is left plugged in after use.
21
Any modern jet is capable of breaking the sound barrier.
34
The ball on top of a flagpole is called a 'truck'.
24
The IRS processes more than 2 billion pieces of paper each year.
28