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Cake day: June 4th, 2023

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  • Tlaloc_Temporal@lemmy.catoScience Memes@mander.xyzRaisins!!
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    27 minutes ago

    At the planetary scale, such a change would be completely overpowered by other orbit defining effects, like resonance, mass flow/loss, and even drag.

    At the cluster scale, I can absolutely see spacetime expansion overpowering gravity.

    At the galaxy level, I can’t tell. Does spacetime expansion limit the size of galaxies? Is that limit shrinking due to the acceleration of expansion? Are galaxies under that limit larger than otherwise expected? Is this effect large enough to effect the speed of galaxy rotation and does it need to be taken into accout when measuring the effects of dark matter?










  • There’s a difference between sharing information and a river of glorification.

    Not all the WWII history shows glorified it, but lots of them did and did often. I’ve heard too much about the brilliant tactical minds that ensured the fall of Nazi Germany and paved the way for democracy and freedom. Too many tank battles are called great, and not enough called tragic. Famines and desyruction of infrastructure ate often mentioned for their strategic effects, and rarely for the rapid destruction of society they cause.









  • Tlaloc_Temporal@lemmy.catoScience Memes@mander.xyzOxygen
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    12 days ago

    Fire gets it’s energy from fuel+oxygen. Most life does too. Plants (and other photosynthetic organisms) can also get energy from light but that requires you to sit in the sun doing not much for a long time. There’s also chemosynthesis, where energy is obtained from a chemical reaction, but that’s usually not nearly as powerful as oxidation.

    Put another way, a car with NOS is way faster and more powerful than one without. So too is life that uses oxygen more powerful than life that doesn’t.