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TIL the worlds smallest concept gasoline engine is 15 mm long 5 mm wide and 3 mm tall. It will produce 11 watts at up to 50,000 rpm’s and it could power an LCD watch for two years on a single drop of lighter fluid.

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R50kl TIL: There was a cricket match in 1939 between England and South Africa which lasted 12 days, it is affectionately referred to as the "Timeless Test"
5VW1n TIL that up to 25% of the Caucasian population cannot process codeine properly & the medication may not have an effect at all on up to 10% of the Caucasian population
JY4Ml TIL of a study which suggests melatonin, the hormone associated with control of our sleep-wake cycles, evolved 700 million years ago from our tiny oceangoing ancestors that would swim to the surface of the sea at twilight and then sink into the depths of the ocean in a sleepy fall through the night.
E1Wxp TIL The anthem lyrics of the Republic of China strives for peace and harmony and then calls upon the people to be brave, earnest, and faithful in striving to fulfill that goal
lk4G TIL That Samurai would frequently change their own names to reflect what allegiances they had