› added 2 years ago

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TIL that some fish are obligate air breathers. Meaning they need access to air for a breath. Examples of some fish are betas, tarpons, and arapaimas.

Read more fishionary.fisheries.org

via reddit.com

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a8OnA TIL that David Cox and Steven Zucker, two graduate students from Princeton, developed an algorithm for the intersection numbers of sections of elliptic surfaces and named it the Cox-Zucker machine.
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e0114 Today I learned that the CIA secretly owned a Swiss company called Crypto AG that maintained offices all over the world and sold products with secret backdoors for the US government and key allies.
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