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Cake day: August 26th, 2024

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  • ftbd@feddit.orgtoScience Memes@mander.xyzHmmmm
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    3 days ago

    In high school, I used to be frustrated by this as well. But now, I’ve come to appreciate being able to get a reminder for a definition or a famous result just by googling and clicking on the resulting wikipedia page. Way better than having to find and dig through a badly-scanned pdf of a paper from the 70s which presented the definition that everyone in the field now uses.








  • ftbd@feddit.orgto196@lemmy.blahaj.zoneMaths rule
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    25 days ago

    Especially in a middle school math/physics setting, I would expect reasonable units. Otherwise, how would kids understand the relationship between force and acceleration? Do you use mile / hour / min for the acceleration due to gravity as well? Do you have a funky replacement for Newton too?



  • ftbd@feddit.orgto196@lemmy.blahaj.zoneMaths rule
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    29 days ago

    That’s not the problem. Coming from metric, I expected m s-2 for acceleration. The imperial units for distances are weird enough in their own right – but using two different units of time for the two time derivatives is truly unholy.





  • ftbd@feddit.orgtomemes@lemmy.worldIt's true.
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    1 month ago

    The natural representation would be the transient solution u(t) or i(t). Harmonic solutions are merely a special case, for which it turned out complex numbers were useful (because of the way they can represent rotation). They certainly serve a purpose there, but imo this is not an instance of ‘complex numbers appearing in nature’.