• ladicius@lemmy.world
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    3 months ago

    Would splitting one single atom in a non dense environment start a nuclear chain reaction? And why do I ask such questions when it’s simply a cartoon to snicker about?

    • alpine_jim@piefed.social
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      3 months ago

      no, there are lots of atoms splitting inside your body every second.

      a single U-235 atom’s fission, releasing ~200MeV, (~30 picojoules), in ideal circumstances could maybe nudge a very small fine grain of sand (~ micrograms) enough to see movement (small fraction of a millimetre) under a microscope .

      It takes months of refining to make nuclear fuel that’s suitable for sustaining a chain reaction.

      it’s an interesting question, I’m glad I did the research checking that the orders of magnitude match!

    • AeronMelon@lemmy.world
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      3 months ago

      Was that not Albert Einstein’s fear regarding the bomb? That Earth’s atmosphere would simply ignite when exposed to the initial reaction?

      I think our sitting here, snickering at a comic about a biblical nuclear explosion, is proof that it wouldn’t happen.