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Joined 2 years ago
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Cake day: July 6th, 2023

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  • Given enough time and known lengths, most of my students should be able to calculate the surface area of this by the time they graduate. They’d just split everything into triangles and quadrangles, use the formula for each, then add everything together. It’s not that useful of an exercise though, didactically speaking, because once you grasp that process, it’s just repetitive and lengthy. There’d have to be a LOT of given values to make this solvable, too.

    On a more subjective note, they can also form sentences. They just don’t want to when colloquial speech brings the point across just as well and it’s an informal setting. The same is true for most people of all ages in my experience.


  • Droggelbecher@lemmy.worldtoScience Memes@mander.xyzsnail lyfe
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    2 months ago

    Sibling and I were visiting my mum. Neighbour kids were playing outside when we arrived. They loudly asked ‘why does the boy have long hair and the girl short hair?’ Mum said ‘Because they each like their hair that way!’ and the kids were also like ‘yeah that makes sense’. Kids love learning new stuff, it comes easily to most of them to learn that humans can differ.



  • Not a physicist yet, temporarily a high school physics and maths teacher until I can start my PhD

    Fe-56 is the heaviest nucleus that releases energy when other nuclei fuse into it. Everything heavier requires energy, that has to come from somewhere else, to fuse. All things tend to keep doing stuff that release energy, and they don’t like to do stuff that requires energy. So, in a long enough amount of time, nuclei keep fusing together while it releases energy, and stop when it starts to require energy.

    At least that’s what happens inside regular old stars. The vast majority of them will have an iron core after a certain amount of time.

    It pretty much only takes nuclear physics into account though, whereas the actual universe is a lot more complicated and will thus probably not turn itself into all iron.