› added 3 years ago

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TIL Rotational detonation engines are expected to replace rocket engines for space flight.

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40yo TIL that 7th Century general Khalid bin al-Waleed swallowed poison to demonstrate how much of a hard-ass he was. Instantly shrugging it off because he’d built up resistance since childhood, his enemy immediately surrendered.
x6M07 TIL that the date of Easter used to be so complicated to calculate that church authorities would come up with algorithms to determine it years in advance. Disagreements over the proper algorithm led to Eastern Orthodox churches celebrating Easter on a different date than Western churches.
6EeZ7 TIL that J.R.R. Tolkien. once received a goblet from a fan inscribed with "One Ring to Rule Them All..." inscribed on the rim in black speech. Tolkien never drank out of it, since it was written in an accursed language, and instead used it as an ashtray.
5Y7bQ TIL Ted Bundy's female fans who watched his trial wore their hair the same style as his victims so they would appeal to him
5vGR TIL that parasites get parasites, called hyperparasites. It’s also common for parasites of parasites to get their own parasites. And, you guessed it, those parasites too are prone to getting parasites.