

[AI] scientists were so preoccupied with whether or not they should, they didn’t stop to think if they could.
— Randall Munroe, xkcd 2635
[AI] scientists were so preoccupied with whether or not they should, they didn’t stop to think if they could.
— Randall Munroe, xkcd 2635
Specifically, 100 or 120 Hz depending on the mains frequency. This is at least 12 000 cycles during the scan, way more than the effective vertical resolution.
It’s not hard to get non-flickering LED lights. If you don’t want to spend a fortune on certified flicker-free ones, visit a store with a photocell and an oscilloscope or Arduino.
When there is no trickle current the UPS will beep because it will detect battery removal.
You need a balancing BMS anyway and the UPS will not be able to charge it to what it thinks is 100% (about 15 V at trickle current) unless you trick it with a resistor (which wastes power of course).
What’s an “inui battery”? Do you mean the INIU B5 powerbank?
Powerbanks can be used directly as USB UPS devices if their output is enabled while charging but most devices you would power with them already have “UPS” functionality (built-in battery). By “disassembling them” you mean using their raw cells? That gets you 3.7 Wh per dollar but I recommend going for the similarly priced raw LiFePO4 cells unless you want to lug them around, getting you great longetivity and cycle life. You need a BMS anyway if you put them in series, I recommend a 4S or 8S config to avoid dealing with large currents and lossy step-up conversion. They can save you quite a bit of money if you charge them daily with solar power. Professional solutions are available, whether they are worth it depends on how much you trust your skills.
What UPS would you put the cells in, anyway? Don’t use one with a lossy and costly mains inverter unless you’re powering something that really needs mains. You can find many that have ATX outputs, or if you’re adventurous some ATX supplies can be run from 12V DC (exact!) supplied into the 12V rail and 5V into the 5Vsb rail because they use an inverter and buck converters to create all the other voltages from 12V. These can be identified by counting the mains transformers and windings of the main transformer. Don’t backfeed 12V while it’s powered from mains. You can use the internals from a cheap car USB adapter (they work from 9 to 30 volts) for 5Vsb from your 4S-8S cell configuration, but the cell-voltage-to-12V supply will have to be a beast - still smaller than the mains inverter you’d need.
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If he only took a glance at the very straightforward privacy settings…
Lead acid is LITERALLY the oldest known rechargeable battery type so I am not surprised you can make them with ancient tools if you’re also OK with 19th century “safety standards”.
Do you know that LiFePO4 cells are the same price (in Europe), longer-lasting, lighter and safer than traction lead-acid ones? They pretty much have no disadvantages to lead-acid, and the need of a BMS (and heater if needing to charge below freezing or run below -4 °F/-20 °C) is no problem since those are a fraction of the cells’ price. The only reason I see behind this move would be acute lithium shortage in China.
The bottom right one should be tor-rent, not torr-ent. It’s a peer-to-peer media rental service running over the illicit TOR network. TOR is yet another project the notorious criminal hacker Linuxos Torvaldos made and named after himself.
People always told Linuxos to keep his legal name and his illegal software separate but he wouldn’t listen. He got caught in a San Francisco public library reading with his wife Stella Richman. What a git.
LiFePO4 is still superior to traction lead-acid in pretty much every way: energy density, safety, time and cycle life, internal resistance… Yes, they need a BMS but those are very cheap and lots of batteries have them built-in. In fact, I was unable to find 4-cell packs without a BMS inside so I could put two of them in series and balance the 8S cells with each other using an active BMS of my choice, and ended up ordering individual cells and screwing them together.
I cleaned it up a bit and added color. You can replace yours with the following and I’ll delete this so that we don’t take up so much vertical space.
Edit: done
AI is often used to make the last step produce text that is closer to English. Whether that helps very much depends.
Yes but please OCR them because some of us are on mobile and get 1280 ⅔pixels width in landscape mode
The UK just gained several precious people. Good for them!
Lemmy will be okay if you don’t keep posting as much as you’ve been. Do whatever you need to do to set your family up there.
Life can be tough and it’s OK to seek hope but this corner of the internet is mostly atheists so you can’t appeal to faith here. Even Christians agree that God does not interact with people as directly as 2000+ years ago so you cannot rely on literal signs from Them. If you want to apply quotes from the Bible in your life (I would personally advise against that), speak to a member of your preferred church or an explicitly Christian community online.
They are either mocking the Bible and trying to point out that many sections are obvious bullshit, which is a topic done to death centuries ago, or genuinely seeking help in a tough situation and don’t know an appropriate place to turn to.
It delayed Trump’s second term but at what cost?
Numeric keypad pls