[–] 11 points 1 month ago

Oxygen is converted to carbon dioxide in the cells, which essential burn (oxidize) glucose or fat (a bunch of carbon) for fuel. Fat plus the oxygen you breathe becomes carbon dioxide and water. That's why aerobic exercise make you thinner (you burn your carbon sources and exhale the weight)

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  • [–] 14 points 1 month ago (1 child)

    The process is called osmosis. There is a thin membrane that separates the air in your lungs from the blood in your lungs. The blood has a high concentration of carbon dioxide and a low concentration of oxygen. Any volume of fluid (liquid or gas) wants to equalize, so the carbon dioxide naturally tries to reach the low concentration air while the oxygen tries to reach the low concentration blood. The fun part is your body doesn’t actually know if it has enough oxygen, it only knows how much carbon ioxide it has. So in for example low oxygen, high nitrogen air you can suffocate without noticing since the carbon dioxide is still leaving your body.

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  • [–] 6 points 1 month ago

    What happens when something traveling at the speed of light (ie: EM radiation) hits something going slower than the speed of light?

    The answer there is: it depends, because the issue isn’t relative velocity but energy density and transfer.

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  • [–] 27 points 1 month ago (1 child)

    There is no such thing as faster than c. From the POV of a photon, the distance to its destination (no matter how far) is zero - it's already there in literally no time.

    You can't go faster than that.

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  • [–] 3 points 1 month ago* (2 children)

    Allowing the magic part, the kinetic energy equation still applies. So fast velocity minus the slow in that direction. Might as well have been going a bit slower than light. A grain of dust at even a small percentage of light has a lot of energy.

    Add to my guess that I think relativity might rear its head in this and say that even if it was going that fast, it would only appear to go less. Same reason why light is seen to go at c by all observers, no matter the frame of reference. There's equations for that.

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  • [–] 2 points 1 month ago (1 child)

    My guess is that faster than light and slower than light matter interactions are impossible.

    So they would never interact, kind of like the way that a radio wave can slide directly through a sheet of metal.

    Assuming that it did actually interact, I imagine the only reasonable outcome would be the spontaneous creation of a horde of naked singularities which would then almost immediately scab over into a plethora of black holes.

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  • [–] 1 point 1 month ago

    No-one has digitally resurrected anyone, to the best of my knowledge, so the person who can’t be convinced and the person who can’t do the convincing are both entirely hosted in your imagination. As such, you’re really the only one who can find the answer. Good luck figuring it out, and maybe take notes? It sounds like the trappings of a good short story.

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  • [–] 4 points 1 month ago (1 child)

    With just rain and paved ground you only get flash floods.
    The ground soaks water and keeps it for sometimes months, and releases it to rivers. It averages everything out a lot and is the main reason rivers are so steady.

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  • [–] 3 points 1 month ago*

    The color depends on the thickness. It is based on which wavelengths multiple it is, so will cycle through the wavelengths repeatedly, i.e. through the colors, as the bubble gets thinner.
    The liquid is probably flowing out of the bubble onto the ground in a slow controlled way, until the bubble gets too thin and pops.

    You can also use color rings to tell how gravity and wind are pulling on bubbles, and adding fluid to them should also cycle through the colors. When you attach them to the dispense you can see liquid flow into the bubble.

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  • [–] 1 point 1 month ago

    Coke. The bad news you either go broke trying to paying for the new addiction trying to post pone the required depressive state or worse you do find it by what is normally progressive more unethical work (crack whore, drug dealer, enforcer, b2b sales, wall street analysts, CEO, etc).

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  • [–] 3 points 1 month ago

    What do you mean by flash?

    If you mean like a firework, that's because the droplets of oil/whatever get flung out when the surface tension pops.

    If you mean the color changes, as the bubble expands the amount of oil/film becomes thinner and that changes the color due to changing the density.

    Like how there's a very narrow slice of eye color that has enough pigment density to be green when the pupil dilates, but when constricted there's not enough density due to increased surface area and they look blue.

    (To be clear that is a very narrow slice and nowhere near the amount of people who claim their eyes fully change color)

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