› added 4 years ago

97

TIL envelopes have hatching on the inside to prevent a third party from being able to read sensitive information contained within.

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via reddit.com

x6VQg TIL Cecil Jacobson, a fertility doctor who used his own sperm to impregnate his patients without informing them, was awarded the Ig Nobel Prize for Biology in 1992, “for devising a simple, single-handed method of quality control.”
OoVwY TIL that helping people in poor neighborhoods plant flowers and spruce up empty lots can reduce crime. One experiment in Flint, MI reduced crime by over 50% in the neighborhood
MeRYA TIL Loving cats is seen as a act of faith in Islam - there are poems, jokes and stories about the speciality and holiness of cats.
X0wk6 TIL that there is only one validated living man born before 1913, and only eight born before 1914.
VMGNG TIL A Photographer Died Protecting His Film During the 1980 Mt. St. Helens Eruption