• 0 Posts
  • 291 Comments
Joined 2 years ago
cake
Cake day: June 22nd, 2023

help-circle

  • AEsheron@lemmy.worldtoScience Memes@mander.xyzD E A L
    link
    fedilink
    English
    arrow-up
    7
    ·
    10 days ago

    Dietary calcium is great for preventing stones, actually. Calcium is bound to a couple different things that cause stones, but the body actually makes those things specifically to bind with calcium. When it happens where it is supposed to, this is a good thing. If you are low on calcium, these things get flushed, and may get trapped in the kidney. Then any calcium that passes through may bind to it. Having higher calcium intake helps prevent them from building up in the kidneys to begin with. Though extremely high amounts of calcium from vitamin supplements etc can increase the risk of getting stones, but high calcium diet is one of the best defenses against them.


  • AEsheron@lemmy.worldtoScience Memes@mander.xyzD E A L
    link
    fedilink
    English
    arrow-up
    10
    ·
    10 days ago

    It is actually not an excess of calcium that’s usually the problem, calcium deficiency is actually a greater risk for most. While yes, the most common types are both chemicals that are in part calcium, the body is meant to produce them, just in different parts of the body. Usually, a deficiency in calcium allows those other compounds that should be used up in other places to be flushed through the kidneys, possibly building up. Then incidental calcium that does move through the kidney binds to them there. Higher dietary calcium intake is associated with a sharp decline in stone risk, though extremely high intakes from vitamin supplements etc do increase risk. But in general, it is an excess of the things that bind to calcium that are the things to avoid, apparently almonds are pretty much the worse thing ever, with a fairly distant second being chocolate.








  • People overestimate the fiduciary responsibility of public companies. It’s true they will often pursue aggressive short term gains to attract more investment in several forms, including higher stock prices. But as long as they are arguably trying to help the company they are considered to have fulfilled their obligation. You have to be able to prove in court they are trying to harm the shareholders to run afoul of that responsibility, which is a fair hurdle. And it isn’t really that difficult to avoid a forced IPO by keeping under the 500 shareholder threshold if one really wants to avoid it.




  • Pretty sure the whole point of this article is we have confirmed tiny black holes do rapidly evaporate. We’ve theoretically known that any black hole just about our sun’s mass or smaller will spew more Hawking Radiation than it can consume mass and will shrink. And this process should accelerate as the mass shrinks. This seems to be the first expiremental evidence to support the well established theory.




  • Everything bends when you move it, usually to such a small degree that you can’t perceive it. It’s impossible to have a truly “rigid” material that would be required for the original post because of this. The atoms in a solid object don’t all move simultaneously, otherwise swinging a bat would be causing FTL propagation itself. The movement needs to propagate through the atoms, the more rigid the object the faster this happens, but it is never instantaneous. You can picture the atoms like a lattice of pool balls connected to each other with springs. The more rigid the material, the stiffer the springs, but there will always be at least a little flex, even if you need to zoom in and slow-mo to see it.