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Joined 2 years ago
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Cake day: June 9th, 2023

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  • My guess is that there is no set standard in law. When you deny someone else “equal opportunity “ they can challenge the denial to the FCC and in court. Whoever loses the FCC appeal files a federal lawsuit. Then it would be based on case law for the definition of bona fide in similar cases and, barring that, similar usage of the term. You duke it out with $1000/hr lawyers in federal court for 2-3 rounds until the most recent loser appeals to the Supreme Court where they turn youdown or you argue if the FCC even has the power to compel such an “equal opportunity “ based on the law which allows the rule to be written.

    At least that’s my layman’s understanding of the process.







  • It’s worse than storing it in the ideal zone - between 3.6 and 4.0 volts (% means nothing if we’re getting technical as there is an interpretation later in software). Constantly at 4.2 is bad, dropping below 3.0 is very very bad, and going to ~2.7(iirc) is simply murder. I have a telemetry module in a rocket which doors not have a low voltage cut off and every time I’ve left it on at least one cell in the lipo is permanently damaged.

    In the telemetry case, it’s designed to run absolutely a long s as possible because the cost of a (interchangeable) battery is small compared to the cost of the rocket and telemetry payload.

    I’m not a battery expert, but I’ve left lipos in computers and phones on chargers for years without substantial/excessive deterioration relative to their number of charge/discharge cycles; my experience with the telemetry makes me more wary of full discharge as a cell damage condition (not a direct analog as the deck certainly shuts down before lipo cell death)

    —-I should point out that I’m not terribly worried about battery damage - that’s a red herring. I’m just pissed when I grab my deck and its battery is dead and I was hoping to squeeze in a quick game. :-)




  • Overnight? Sure.

    After 12-24 hours? Certainly it’s not good for the battery to sleep all the way to a dead-flat battery. Why not have it drop into a deeper sleep? My Win laptop goes a month and still has battery (just by walking away and letting it sleep) and wakes instantly (daily use) or a few seconds (weekly+ use). Same with my iPad. Even my Sammy tablet will go for 3+ weeks and still have juice.

    It just seems weirdly 1998 era to have it so bad at power management.

    (Edit- I’m not blaming you, just curious if anyone knows why it isn’t even an option)









  • Hey, I’m just an aero/structural engineer - this microscopic and quantum level stuff is well outside of my daily practice, too. The theory (of which I am innocent of all detail) says that this shouldn’t be possible - using Brownian motion as a source (directly or as a pump). If this is an end-run around classic physics, that’s okay, as long as the overall energy balance can be shown to be maintained.

    Edit: Usually in threads like this I hope to say something wrong, or apply the wrong principle, and then someone who is an expert comes in and corrects me. Then I go look up whatever it is they say and I get to learn something new for the day. Either that or someone who knows more than I do agrees with me and expands on the description in a really insightful way, and I get to learn something more in depth that day.


  • People who prefer Linux generally like full control over their computer, and accept that manual control requires manual work, or are excited about learning the inner workings of their PC. These are the DIY deck builders who crown their joists and use stainless fasteners. The cooks who hone and strop their knives. The swimmers who shave their bodies. The backyard gardeners who send soil samples to the extension service and rotate their vegetables in their 1/8 acre homes. All otherwise normal and average folks who are passionate about getting the most out of some facet of their lives. And all of this stuff is “silly” or “unnecessary” to most people who build a deck, cook dinner every night, swim at the community pool, or have flowers in their yards. And so even if Linux is objectively better, it’s pretty likely the average user isn’t going to see any advantage to it.


  • If you’ll allow me to be pedantic, they already applied heat to the sample as it was above absolute zero. For this device to not violate the laws of thermodynamics it has to cool down when the power is extracted so, in an otherwise adiabatic system, a perpetual use would eventually require the addition of heat to continue to produce power.

    Like the recent claim of a room temperature superconductor, the ability to produce this effect at a macro scale would be revolutionary. Example: 99% efficient solar panels. Combination refrigerator/water heater appliances which use no outside energy. Home heating and cooling which requires not only no energy but produces surplus power in the cooling months. Your home dehumidifier could charge your car or your laptop. You could drop this generator into the ocean and simply pipe unlimited energy to the shore, using the water as a sink. Practically, though, it sounds like microamps (at best) is the result, so - as they said - semi-autonomous, very lower power electronics is the real target application, leaching thermal energy from the environment in such small amounts as to be negligible. A bit like using harvesting energy from radio waves (a myth that was explored on Mythbusters and, while possible, was highly impractical)