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Cake day: June 17th, 2023

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  • cynar@lemmy.worldtoScience Memes@mander.xyzObserver
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    3 hours ago

    I disagree with it being hard to comprehend. The maths is an absolute bitch, but the basic premise is fairly simple. Everything is (quantised) waves. The rest clicks, once you get your brain to accept this. Everything else is a consequence. Those consequences can lead you down deep dark tunnels, filled with evil maths and mind bending results, but the basic idea is simple.

    I have a bit of an issue with memes that are actively misleading.


  • cynar@lemmy.worldtoScience Memes@mander.xyzObserver
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    3 hours ago

    That is part of what bugs me.

    Quantum mechanics isn’t magical or unknowable. It’s just an area of physics where some of our base assumptions/approximations break down. It’s not even that hard to wrap your head around, it just seems most people don’t want to try.




  • cynar@lemmy.worldtoScience Memes@mander.xyzObserver
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    7 hours ago

    This sort of comic always bugs me. Observation in QM is not the same as observation in layman terms.

    Best think of it as hit it and watch the pieces fly. When you get small enough, you can’t approximate out the impacts. It’s akin to studying road traffic by sending an overloaded freight truck the wrong way and counting tires that hit the verge. It might also affect the current traffic’s motion.













  • There are 3 use cases I’ve seen.

    • Making fossil fuel power stations “clean”.

    • CO2 recovery for long term storage.

    • CO2 for industrial use.

    It’s no good for the first, due to energy consumption. This is the main use I’ve seen it talked up for, as something that can be retrofitted to power plants.

    It’s poor for the second, since the result is a gas (hard to store long term). We would want it as a solid or liquid product, which this doesn’t do.

    The last has limited requirements. We only need so much CO2.

    The only large scale use case I can see for this is as part of a carbon capture system. Capture and then react to solidify the carbon. However, plants are already extremely good at this, and can do it directly from atmospheric air, using sunlight.


  • cynar@lemmy.worldtoScience Memes@mander.xyzEntropy? Never heard of it.
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    7 days ago

    Just checked the numbers, for those interested.

    A gas power plant produces around. 200-300kWh per tonne of CO2.

    Capture costs 300-900kWh per tonne captured.

    So this is basically non viable using fossil fuel as the power. If you aren’t, then storage of that power is likely a lot better.

    It’s also worth noting that it is still CO2 gas. Long term containment of a gas is far harder than a liquid or solid.