My (entirely uninformed) belief is that any citizen would have standing since the insurrection would have affected (injured) every person who would have chosen a leader by vote.
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. :-)
Where, if I might ask? I looked under every setting in the UI and couldn’t find it. Is it somewhere in the bowels if desktop mode? I only use the deck as an appliance, like a switch. Maybe it would be better to wipe and install windows?
It’s not really a risk- it stays plugged in all the time…except on the rare occasion when it doesn’t. ;-)
I’m surprised there isn’t some kind of fail-safe that starts a graceful shutdown at 10-20% if it’s been in sleep for >x hours. Taking a LiPo to 0% is terrible for the pack; most devices have some sort of fail safe against this kind of battery stress.
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.
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)
That's actually a big deal, thermodynamically. They are claiming that they can reduce entropy essentially without an input or pump - their diode aray appears to be a Maxwell's demon.
And you're limited to approaching 2.7K, the background temperature and limit for radiative cooling, which is higher than you would want for some sensors. Being able to either extract power and charge a battery to be either used as power, to heat other parts of the craft, or to concentrate for more efficient radiation would be quite useful.
I couldnt access the full text, but that was my impression, too, based on the summary. It appears to work on some analog of hysteresis where the technical balance of energy is maintained but the time scale of restitution is long enough that power can be "siphoned off". Again - since conservation of energy must be preserved and no matter is created or destroyed, this would serve to reduce the temperature of the graphene. There doesn't appear to be a scale for their experimental work and whether they're extracting pico amps or microamps across the (I guessing form the publicly available graphs) 0-0.4 volt potential.
It's not clear if they're looking at nominally uniform temperature material which has fluctuations in temperature due to the surroundings, or if they are inducing temperature gradients in the material intentionally to produce the signal. I'm an engineer, not a theoretical physicist, so anyone claiming to end-run the second law of thermodynamics is going to be treated with a bit of skepticism as to the practicality or scalability of this "cheat".
It really comes down to the way you use it. As others have mentioned you don’t even need one to get the job done. And it’s true that beyond a certain length it’s sort of impractical; mostly just for show.
In all seriousness, being that they’re using standard C ends, I’m a little surprised they’re going to include one at all.
Recently I've seen several of the newer Airbus A321s and 737-800s have charging ports and power outlets standard. A couple of low cost carriers (intentionally) omit them, and it seems like a coin flip on the older 737/319/320s, esp for US domestic flights. I've taken a couple transatlantic narrowbody flights recently and TAP and Icelandic both had power at the seat. My biggest pet peeve as that, for many flights, you just don't know until you actually get to your seat.
As a bonus, you won't be stressing the internal battery. An external is far easier to replace than the internal, so plugging in and bypassing the internal battery will extend its life - especially if at the "end" of play you still have at least 30-40% remaining on the internal.
My (entirely uninformed) belief is that any citizen would have standing since the insurrection would have affected (injured) every person who would have chosen a leader by vote.