› added 2 years ago

53

TIL that Limpets, the little conical sea snails found all over the world, develop "Homescars", their favorite places to sit on rocks, which is a little depression etched out of the surface of the solid rock from them frequenting that location.

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DEeY TIL Bluetooth technology (and its logo) was named after King Harald “Bluetooth” Gormsson because he unified Denmark and Norway much like the technology which unifies electronic devices. The logo consists of the Nordic runes for his initials…H.B.
mn0x TIL that the shape of an Pringle is called »hyperbolic paraboloid«
XrDP TIL Samsung is also a full time weapons manufacturer.
gkK8 TIL that the kings in regular playing cards refer to specific historical kings.
9YZwQ TIL that we don't see pure black when we close our eyes, we see a color named Eigengrau and although there are a few theories as to what causes it nobody's quite sure.