[–] 3 points 1 week ago (4 children)

dP9TmZu36ZdawDD.webp

Well, um, you see the issue is my music is either apolitical, or extremely anti-establishment, and there's nowhere near enough room to fit half the ANTIFA music I have. I tried, and failed quite hard.

But you defiantly need ANTIFA Dance by Ana Tijoux in the top left corner.

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  • [–] 1 point 1 week ago

    That's actually exactly my point. I once went through and estimated how much the atmospheric temperature would increase by burning kerosene for jet fuel. It wasn't accurate and I didn't take a lot of variables into account, but it was a very noticeable increase. The point is, dumping mass amounts of heat into the surroundings can have a noticeable effect on ambient conditions, hens my question, "how much of this is caused by data centers?"

    humanspiral@lemmy.ca is correct, this is a minuscule effect in comparison to solar warming. At the end of the day, the problem with global warming is pretty simple. A body in space can only remove thermal energy by radiating it out (black body radiation). This is a fixed value and quite easy to calculate for a sphere. However, parts of the atmosphere absorbs and re-radiates some of that black body radiation back to earth, this is what keeps it at a livable temperature and not significantly below the freezing point of water. Co2 and methane are two gases that absorb and re-radiate that energy back to the ground, hens the concern surrounding them. But the system is more or less fixed, and adding thermal energy will result in a change to the system's overall energy state.

    If you approach the problem from this stand point, your goals shift slightly from "reduce emissions" to "reduce energy usage." However, that's not profitable.

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  • [–] 6 points 1 week ago (5 children)

    This is a chaotic system with a lot of contributing factors and creating correlation from causation would be difficult to impossible, but I wonder how much AI datacenters are contributing to this. Thermal pollution is actually a huge deal, and if take into account the amount of thermal energy put out by, say, global air travel, than global temperature deltas should be much greater than they are. Datacenters have been proven to be quite efficient at creating thermal pollution, so it stands to reason that creating more thermal pollution could be responsible for much of the temperature delta.

    This also holds a bit of hope for us: not all of global warming is caused by green house gases (yes, most of it is, but not all), but rather some of it is simply caused by thermal pollution from burning fuels or even using electric heaters. Because of this, climate change is likely, to some extent, partially reversible if only by stopping the mass-scale dumping of thermal energy into the atmosphere. Again, it's realistically impossible to draw causation from the data, but "rebellions are built on hope."

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  • [–] 7 points 1 week ago

    That's amazing! These days you can download most languages documentation to Kiwix. I have Zig, C++, C, HTML, Python, and probably a few others along with whatever is in 2024 Wikipedia. It's really more documentation than you could possibly need to make most things.

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

    This is disappointing, but not surprising in the slightest. However, this could be far more concerning than "mere" privacy violations. This lays groundwork for the ability of the US government to restrict flow of information physically stored on electronic devices into the territory they occupy. Though logistically complicated, I would certainly not put it past a fascist regime to implement such a policy and it would be disconcertingly easy to hide such a policy.

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    I am trying to mathematical model a passive Magnetorheological damper. Broadly speaking, this would work by having a magnet sit on the damper shaft near the damper body. As the shaft moves, it would induce an eddy current in the damper body, creating a magnetic field. Not only would this magnetic field oppose the magnet's motion, but it would increase the viscosity of the magnetorheological fluid inside the damper body. On paper, this would rapidly increase the damping forces with increasing shaft speeds, allowing for more controlled shaft speed.

    Fortunately, I found a paper discussing a damper similar to my ideas. Unfortunately, I don't really understand the math, and I need the damping force equation in terms of velocity to validate the application I have in mind. Linked is the paper I am referring to.

    For my purposes, I would also want to model separate traditional high and low speed compression and rebound circuits moving through traditional mechanical damping circuits, along with some other damping features. However, that's a problem for future FedX, right now I really just care about the broad differences in damping characteristics as a function of shaft velocity.

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