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Cake day: June 22nd, 2023

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  • For physics enthusiasts, I’d also suggest “floatheadphysics” for his depictions and sometimes cathartic presentation style. I love how he broke down special relativity in an easily understood way.

    Then I’ve also really been enjoying “For The Love of Physics” for his style of showing some of the math. His style is more of a classroom presentation, but in a way that reminds me of my most effective professors that made their lessons as easy to consume as mac and cheese.

    I’m inclined to hit some online courses someday, too, but, for now, these have been great for conceptual stuff and my curiosity vs. time balance.






  • There is just something really amazing about being able to communicate directly between two points on the planet by bouncing EM waves off layers of the atmosphere. Like, imagine two people hundreds of miles apart are shining flashlights (or torches, if you prefer) at the distant sky, just above the horizon, and seeing the sky glow from each other’s beams signaling each other. At the right frequencies and with the right conditions, certain atmospheric layer boundaries become reflective, like the boundary between air and water, so imagine that distant sky looks a little glossy up there, like water’s surface reflecting your beam.

    But then run that light source through a machine that does that flickering signal fast enough to encode your voice in the pattern of flickering that’s glowing in the sky over someone else’s horizon.

    That’s pretty closely analogous to what amateur (“ham”) radio operators are doing when they play with the HF range of the radio spectrum. The electronics are less sophisticated than cell phones, but our usual gadgets rely on many other devices to relay info across the Internet (which is also amazing, in a different way). Ham radio, on the other hand, is like a fancy version of talking through two cans on a string, sometimes up to thousands of miles apart, but using fast flash lights instead of string and cans.




  • atx_aquarian@lemmy.worldtoTechnology@lemmy.world*Permanently Deleted*
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    4 months ago

    I reported a comment for basically saying that men are the only violent sex, and they temp-banned me for abusing the reporting system. The explanation message (canned, I’m sure) said that abusively reporting people is a form of harassment or bullying, or something like that.

    Eat shit reddit, and fuck spez.

    edit: Based on my experience and what others are saying, I have to wonder, were they trying to burn it down from the inside?











  • The thing is it’s not a “hey, need an abortion? just do this.” Look at what it’s saying: if you drink the bitter water and God judges you guilty, it will cause an abortion, and that’s how we’ll know whether you’re guilty or not.

    Religious POV: No human has any choice in the matter. Drink the water, God decides. Zero choice.

    Non-religious POV: I see a few possible explanations.

    One is the person administering the “bitter water” might actually have some concoction that worked, but if it did work, that would signal to the community that the would-be mother was guilty under their harsh law. Not good for her, not really a choice.

    Another possibility is that it’s a ritual designed to let people move past perceived adultery. Drinking the magic water shows your faith and innocence because you would have believed you were poisoning your baby if you knew you were guilty. In reality, maybe not, but that’s what the ritual presents on the surface. You drink the magic water, everyone feels better that God either didn’t judge you guilty or forgave you, everyone goes on with life. Everyone’s happy except if the mother was so desperate she would rather have been punished by the law than have that baby. Still no real choice.