› added 8 months ago

121

TIL a 2x4 is actually 1.5x3.5 inches

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Wk9eo TIL that the jesus nut, in some helicopter designs, is the single nut that holds the helicopters rotors to the body of the air craft. The term came around in the Vietnam War, one of the first conflicts to make use of helicopters.
Kkww TIL the scientific name for an ice cream headache is “sphenopalatine ganglioneuralgia”
GYLBN TIL During WW2 British prisoners captured by the Japanese were not allowed to sing, in an effort to stop the morale of the prisoners from getting to high, so they whistled instead, an example of this can be seen in the film "Bridge over the River Kwai".
dDZ48 TIL that men's & women's buttoned shirts have buttons on opposite sides.
JY914 TIL about the Groom of the Stool: the most intimate of an English monarch's courtiers, responsible for assisting the king in excretion and ablution. Under Henry VII, the Groom of the Stool became a powerful official involved in setting national fiscal policy.