A jiffy is an actual unit of time for 1/100th of a second. Thus the saying, I will be there in a jiffy.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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There are over 16,251 full-service restaurants in the vicinity of NYC. You could visit one every day for 40 years and still not have visited them all. This excludes counter service restaurants and cafeterias.
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Blue eyes are the most sensitive to light, dark brown the least sensitive.
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It's impossible to kill yourself by holding your breath.
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There's a company in China that allows you to hire someone to stand in line for you for $3-$5 an hour.
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The first household refrigerators cost about $16,000, in today's money!
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The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
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