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Joined 3 years ago
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Cake day: June 26th, 2023

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  • You’re looking at about a half hour per kilogram of copper to raise it by 50 °C with 100W of heat.

    Actual delta from ambient to thermal limit will typically be a little higher than that, but so is processor wattage on mid-to-high performance CPUs, so I’m happy enough with that as a ballpark estimate.

    Someone else estimated that block as 4.5kg, so you’ve got something close to two and a half hours of cooling from an ambient start.





  • vithigar@lemmy.catoHumor@lemmy.worldThe writing process
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    9 days ago

    I can get really annoyed when writers get stuff like that wrong.

    I was reading a science fiction novel and just about every time a gun was fired in a vacuum the author included some detail about how the weapons were “vacuum sealed” or some such thing, so that they would fire without oxygen.

    …except guns work just fine in a vacuum already. All modern firearm propellants (and many historical ones) are self-oxidizing and don’t rely on atmospheric oxygen to burn.

    It snapped me right out of the book every time I came across it.



  • vithigar@lemmy.catoAutism@lemmy.worldOh nooooo
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    11 days ago

    How about being a witness to a conversation between two others and you can tell neither of them understand the point the other is trying to make.

    Bonus points for when they actually agree with each other but just haven’t put together what the other is saying.