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xkcd bot@lemmy.worldB to xkcd@lemmy.worldEnglish · 3 個月前

xkcd #3200: Chemical Formula

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xkcd #3200: Chemical Formula

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xkcd bot@lemmy.worldB to xkcd@lemmy.worldEnglish · 3 個月前
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xkcd #3200: Chemical Formula

Title text:

Some of the atoms in the molecule are very weakly bound.

Transcript:

Transcript will show once it’s been added to explainxkcd.com

Source: https://xkcd.com/3200/

explainxkcd for #3200

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  • stelelor@lemmy.ca
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    3 個月前

    The formula starts with CH, which means the universe is organic.

    • NachBarcelona@piefed.social
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      3 個月前

      or Swiss

    • PumpkinSkink@lemmy.world
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      3 個月前

      I mean… there’s a C-H bond in there somewhere.

      • ranzispa@mander.xyz
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        3 個月前

        Pretty sure that yes, somewhere in the universe there is organic matter.

    • djehuti@programming.dev
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      3 個月前

      Indeed! Hello!

  • AnarchoEngineer@lemmy.dbzer0.com
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    3 個月前

    I’m not a physicist, but even if Astatine is being produced in minute quantities by decay, a half life of 8hrs should probably put it lower on the numbers than Americium.

    Americium is produced anywhere you have lots of free neutrons. This may be rare on earth outside of nuclear power plants and bomb test sites, but not necessarily rare in the universe. Especially since it has a half life of 432years, so unlike astatine it can actually accumulate a bit and not just decay immediately.

    Astatine basically doesn’t exist. The total amount in the entirety of earth’s crust at any given time is estimated to be less than a gram.

    So I feel like the amounts should be flipped or at the very least closer in orders of magnitude.

  • palordrolap@fedia.io
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    3 個月前

    There are exotic atoms in that chemical formula that aren’t in the periodic table. Not even if you count the equivalent table of potential antimatter atoms.

    Muonium is sure to exist in non-zero quantities at any one time, for example.

    • Pyro@programming.dev
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      3 個月前

      That’s just impurities

      • fruitycoder@sh.itjust.works
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        3 個月前

        This made me laugh too much

    • WR5@lemmy.world
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      3 個月前

      “Approximate chemical formula”

    • kopasz7@sh.itjust.works
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      3 個月前

      Still can’t find blackholium, what element number is it?

      • Trail@lemmy.world
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        3 個月前

        -1

        • palordrolap@fedia.io
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          3 個月前

          -1 would be antihydrogen. Blackholium is whatever number is large enough to cause gravitational collapse, so probably one or two more than the largest neutron star.

          • Trail@lemmy.world
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            3 個月前

            Yeah I was more like referring to an overflow or something.

        • ElBarto@piefed.social
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          3 個月前

          ♾️

    • nialv7@lemmy.world
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      3 個月前

      And neutron stars.

    • gegil@sopuli.xyz
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      3 個月前

      What about elements beyond 119?

  • GreatRam@lemmy.world
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    3 個月前

    Gold and silver are nice

  • humanspiral@lemmy.ca
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    3 個月前

    surprised there’s so much gold.

    • ryannathans@aussie.zone
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      3 個月前

      Neutron stars go brrr

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