› added 4 months ago

23

TIL that for every human on Earth, there are estimated to be about 2.5 million ants

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RA97 TIL of John Leray, a French Mathematician who concealed his proficiency with differential equations to avoid working for the Nazis. While in a POW camp, he developed sheaves, sheaf cohomology, and spectral sequences which are important tools for modern Algebraic Geometry
R5mKl TIL that in 1846, William Armstrong invented the hydraulic crane, using pressurized water instead of steam. First used at Newcastle docks, it boosted efficiency and led to the hydraulic accumulator—tech that laid the groundwork for modern hydraulic systems.
XEYrE TIL Avocado seed can “bleed” red if its outer surface is removed/broken due to high concentration of tannin being oxidized. Additionally, Tannin is a class of biomolecules that historically been used as an ink in its liquid form.
woPY6 TIL Frank Sinatra was contractually obliged to be offered first refusal of John McClane in Die Hard
PYN9G TIL Super Saiyans in Dragonball Z have blonde hair because the author didn't want his assistant to waste so much time coloring their hair black