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Cake day: June 30th, 2023

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  • cinnamonTea@lemmy.mltoScience Memes@mander.xyzRadioactivity
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    1 month ago

    The thing you said that someone disagreed with was calling it ionizing radiation, which is a more general term and describes radiation with enough energy to ionize an atom or molecule, which means stripping off at least one of its electrons. That requires a lot less energy than activating nuclei in an element that is not radioactive to radioactivity. UV light and X-rays are both ionising radiation, but are not from radioactivity and cannot induce radioactivity. Of course a lot of radioactive radiation (α, β, γ) is also too low-energy to activate more nuclei. It depends on the energy of the radiation and the specific element you’re trying to activate (how close it is to being radioactive, so to speak).

    So like CommissarVulpin said - the real danger is more likely to be contamination







  • cinnamonTea@lemmy.mltoScience Memes@mander.xyzBiomimicry
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    6 months ago

    I’d read this with commas around ‘like’, rather than with a period after it: “… how birds look, like, I’m afraid” works as a sentence while “… how birds look like. I’m afraid” is both wrong, like you point out, but also sounds much more serious than the jokey tone I’d expect from a message without punctuation and capitalization



  • While I’m all in favour of individual action, I think it’s very reductive to say that that will stop climate change. And even the politicians we explicitly vote for to actually do things don’t, or not enough. And it’s not like we chose to live in a world that is being destroyed by climate change, so how is it selfish if we leave behind other people who also do? They created it as much as me - barely, because none of us have any real recourse to deal with it.