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Joined 2 years ago
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Cake day: July 15th, 2023

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  • As far as I know (I’m not an expert), negative void coefficient only affects the fission reaction, i.e. the controlled splitting of uranium atoms. The uranium atoms split into smaller unstable atoms, which decays over time causing heat. If the decay heat isn’t removed, the core will melt.

    Pebble Bed Reactors seem to be generation IV reactors, and I don’t think there are any generation IV reactors in commercial use as of today. Again, my knowledge is limited, but I believe most reactors in commercial use are some kind of water cooled, water moderated reactors. For example, European Pressurised Reactor (EPR) is one of the latest designs commissioned in commercial use, and that design includes 4 emergency coolant systems.














  • There’s something wrong with the device. Paperwhite’s battery should last for weeks, especially if it’s somewhat recent model. Try to calibrate the battery by charging it to full, and continue to charge couple more hours after it’s full. Then use the device until the battery is completely empty (the device turns off by itself). And finally charge it to full. Do not charge it while you are discharging the battery, or interrupt the charging while charging to full. If that doesn’t help, the battery might be faulty or there is something wrong on the software side of things.