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Cake day: June 11th, 2023

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  • F04118F@feddit.nltoScience Memes@mander.xyzTemperatures
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    1 month ago

    This has me confused.

    Temperature can be used to refer to how fast the atoms are jiggling (kinetic or phonon temperature) or to how messy, disordered (opposite of ordered) a system is.

    Time dilation is a relativistic effect where time appears to go slower when you are looking at something that has a very high speed (near light speed) compared to you (relative velocity). Can also happen with mass because gravity is acceleration, thus related to velocity.

    If the atoms are jiggling slower, relative velocities only shrink, so you’d expect to see less relativistic effect. I am not aware of any relativistic effects due to thermal motion in normal conditions (room temp, atmospheric pressure), so I don’t know how they’d appear when relative velocities only decrease.

    I am really interested where you got this temperature - time dilation link from. Can’t seem to crack it.


  • F04118F@feddit.nltoScience Memes@mander.xyzJet Fuel
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    2 months ago

    Thank you for answering.

    I am not sure where to start, but let’s take the easy way: At the moment of writing, the wikipedia page “Persecution of Uyghurs in China” has 585 references.

    They’re probably all written by seemingly independent institutions, journalists and scientists who somehow have a McCarthyist-like fear of communism that they’d risk their credibility just to add a bit of damage to communist China’s moral standing?

    Or are they all factually incorrect through some other mechanism?


  • F04118F@feddit.nltoScience Memes@mander.xyzJet Fuel
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    2 months ago

    The communism preference, yes. As for the CCP: They literally denied Uyghur persecution. Not even genocide, which is a claim that, due to its severity, is always going to be hard to prove, and thus debatable, I get that.

    But even just the fact that the ethnic-religious group of Uyghurs are being persecuted on a large scale, had to be denied. That’s pretty extreme.




  • Good point. I guess you’re right, there are no flattering roles. But each of those options you list would have been less on top of existing prejudices.

    Making her the (non-technical) project manager whose only contribution is “how many story points is that?”, who’s then silenced because “this is important!”, confirms the typical prejudices about women in tech:

    • no technical expertise
    • is not in charge
    • does not have anything to say that is worth listening to in times of crisis

    Especially being talked over. This matches many women’s experiences in men-dominated environments to a T.

    I’d much rather the technically competent, important but socially weird engineer (Jared) be the woman, or the incompetent boss, who’s in charge and calls the shots. Even having no women in the skit would be better than this Cindy role.

    Or, weird idea I know, multiple people with different roles being women. 🙄





  • The most mind-blowing moment I’ve ever had was the course Relativistic Electrodynamics.

    If you assume static electricity (charges attract or repel), then apply special relativity to see what the situation looks like to an observer travelling by, you get magnetism!

    Turns out half of Maxwell’s laws is a direct consequence of the other half once you know about special relativity.