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Joined 1 year ago
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Cake day: March 28th, 2024

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  • Failed electrical engineering major here - it turned out I was built to be a scientist, not an engineer, but it took a year of EE classes to figure that out.

    Regarding energy storage, capacitors aren’t much different than batteries, but they can charge/discharge faster, have lower energy density (units of stored energy per units mass), and self-discharge faster, hence why they aren’t used in place of batteries. For something where weight and volume aren’t an issue and with no need for long-term storage, like a solar-equipped house, a huge cap would be a great option. I’m trying to figure out how to build one of what’s described it the article now.

    The rate at which a capacitor discharges varies just like a battery, proportional to the resistance of the circuit. The reason most folks associate capacitors with “shorted terminals go boom” is the maximum rate of discharge on a capacitor is much higher than a battery, plus some capacitors operate at a much higher voltage than is practical for a battery, increasing the likelihood of generating a small arc. Shorting the terminals with a conductor makes a low resistance circuit so it just dumps its charge, whereas a battery would max out at a much lower rate, typically making a toasty wire versus a vaporized or melted wire.
















  • SoleInvictus@lemmy.blahaj.zoneto196@lemmy.blahaj.zonerideshare rule
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    2 months ago

    If you have any sources beyond “IMO” I’d be interested. Until then, I’ll consider the correlative data to possibly have merit at least worth consideration and further (personal) investigation, especially since it was never stated or even suggested to be definitive or a universal phenomenon. The article is also anything but comprehensive, so I think you’d need to review the actual data to debunk anything.

    Edit: I also never stated this was the sole and definitive cause, only that it may explain it. I’m a scientist, I know better than to definitively state just about anything, even in my own field, but I’ll still share interesting articles without busting out a MANOVA.




  • I’m only an amateur mechanic and a middling chemist, but I’d estimate the amount of sugar water required for the sugar component to have any significant effect on an engine would just keep it from running. Gasoline won’t dissolve water and water is denser, so it’ll settle on the bottom of the tank. A fuel line full of water will kill combustion pretty quick.