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TIL of chromesthesia, a type of synesthesia in which individuals perceive colour in addition to normal auditory sensations. Associations are idiosyncratic but consistent over time, studies found. Bernstein and Liszt are associated with the condition; the latter asking his orchestra to play 'bluer'.

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Vrbk TIL the “Daisy Girl” political ad for Lyndon B. Johnson only ran once, in 1964, but was considered an important factor in his landslide victory and remains one of the most controversial political ads ever.
kO7p7 TIL that there's a suicide method called "Suicide by Cop", in which a suicidal individual deliberately behaves in a threatening manner with intent to provoke a lethal response from a public safety or law enforcement officer.
MeApA TIL that the reason tigers are orange is because their prey see them as green. Deer, which are the main prey of tigers, are only capable of seeing blue and green light, which effectively renders them color-blind to red. Therefore, to deer, the tigers are seen as green.
pBG8 TIL the number of men that get raped in America is higher than the number of women. The reason? Prison.
JY1Bj TIL as glaciers retreated at the end of the last Ice Age, a catastrophic flood in the Pacific Northwest created a waterfall with an estimated flow ten times a great as that of all current rivers in the world combined.