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Cake day: June 16th, 2023

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  • unknown@sh.itjust.workstoScience Memes@mander.xyzperspective
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    21 days ago

    Hi Astrophysics,

    I always wondered why they draw black holes like they do in that the accretion looks like it’s drawn in two planes. I would have thought it would have looked a bit more like a saturns rings? Or is it exactly like saturns rings but we see the whole ring bent round the top because a black hole bends the light around so we can see it? Or is it something else entirely that they are trying to depict here?








  • unknown@sh.itjust.workstointernet funeral@lemmy.worldGo No Further
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    9 months ago

    Off the top of my head, rope to put down Gide lines in case you get silted out so you have something to follow to get out.

    Also extra everything, if your open water diving and you run out of air (or other critial equipment failure) you can roll the dice on the bends by going straight to the surface, not so with cave diving; your just going to drown.