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Cake day: July 12th, 2023

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  • CrazyLikeGollum@lemmy.worldtoScience Memes@mander.xyzBanana
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    4 months ago

    You have to eat approximately 10 bananas for rdv of potassium.

    rdv for potassium is 4500mg. A banana contains approximately 420-550mg of potassium.

    While 70 bananas is probably not going to kill you, ld50 for potassium is 2500mg/kg, that much potassium can exacerbate some heart problems.







  • The minimum is about 80 Jupiter Masses. Smaller than that and you can’t start fusing.

    Maximum size is harder to answer. It’s determined by the Eddington Limit. Which describes the luminosity at which radiation pressure is enough to overcome gravity for a certain mass.

    It’s thought that the maximum mass of a star is somewhere around 150 solar masses, but there’s some evidence to contradict this, as we’ve seen a handful of very old stars with masses or luminosities higher than they should be.




  • CrazyLikeGollum@lemmy.worldtoScience Memes@mander.xyzGood news. :)
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    5 months ago

    Throw in British Columbia and Alaska while you’re at it. Just take the entire west cost of North America.

    And what should be the east coast, since if the international date line didn’t do that weird curve at the end of the Aleutians, Alaska would be the northernmost, westernmost, and easternmost state.





  • There is no clear definition of what constitutes a moon other than it being a body that orbits another body that orbits the parent star.

    There are some astronomers who say the dividing line between a moon-planet/dwarf planet/asteroid system and binary (or more) planet/dwarf planet/asteroid system is whether or not the barycenter of the orbits is within one of the bodies or not.

    And fun fact: if that definition gained acceptance, it would mean that the Pluto-Charon system would go from a dwarf planet-moon system to a binary dwarf planet system. Charon could get a promotion.