› added 3 months ago

15

TIL the dark-grey color we see when we close our eyes isn't black, but Eigengrau (intrinsic grey)

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5Ywwk TIL that in an unbelievable coincidence, the moon is exactly four hundred times smaller than the Sun but four hundred times closer to the Earth, so that both the Sun and the Moon appear to be precisely the same size in the sky - which gives us the phenomenon we call a total eclipse.
epDxD TIL Terry Bradshaw, former NFL quarterback, suffered from post-game anxiety attacks and “frequent crying”
xPwb TIL A species of snail with a metallic armour of iron has been discovered living on the bases of a hydrothermal vent field in the Indian Ocean. Only living creature to have ax exoskeleton re-enforced with metal.
oP7r TIL Richard Matheson, the author of the novel “I Am Legend”, also wrote host Rod Sterling’s opening and closing statements in the t.v. show “The Twilight Zone”, as well as the famous episode “Nightmare at 20,000 Feet”
VM4XB TIL about Doug Engelbart's "Mother of All Demos" at SRI in 1968. He presented the demo of technologies such as mouse pointer, realtime document collaboration, hypertext links and video conferencing, in 1968, 52 years ago