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Joined 1 year ago
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Cake day: July 20th, 2023

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  • Because when looking to replace work horses with a steam engine you didn’t care what the absolute peak output of a horse was. You needed to know how big of an engine you needed based on how large the team of horses already powering the application was. Anyone trying to run a horse anywhere near their peak output for any length of time would injure them.






  • No, never. Current charging rates already get close to thermal constraints. Hitting those charging rates either requires accepting much lower power density or using way more metal per cell. This research might inform design changes to improve charging rates, but we’ll never see high capacity batteries charging in a minute.

    The researchers know this and only mention wearables and iot devices applications. The article author erroneously makes the leap to high energy density devices.

    If you don’t care about energy density at all, ceramic capacitors can already charge and discharge in microseconds.







  • Two suggestions: run a humidifier. Preferably use a steam one with distilled water. The ultrasonic cool mist ones introduce any minerals and bacteria that are in the water into the air.

    The easiest suggestion is to change your blanket. I’m guessing you’re wrapping yourself in a fuzzy fleece blanket. Synthetic fibers like polyester transfer way more static charge than natural fibers. Try looking for a cotton or wool throw. Or for something fuzzy, find a sheep pelt with wool on it. Even using a cotton sheet between you and your current blanket should reduce the amount of charge buildup.

    A side benefit of changing blanket materials, is that any blanket that generates a lot of static charge also holds loads of dust and pet hairs. A less static generating blanket will stay cleaner longer.

    The easiest way to discharge is to touch a metal faucet. If you have copper pipes, they’ll be grounded, but even just the tap water is conductive enough to dissipate most of the charge.