An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Originally, Nintendo was a playing card manufacturer.
70
The life boat was patented in 1845!
29
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
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