Recent comments in /f/explainlikeimfive

TehWildMan_ t1_iyepqj0 wrote

A typical US household outlet can only be used for 1500 watts continuously, and that's sometimes complicated by the fact there may be other devices on that same circuit that are also drawing electricity.

1.5kw isn't a very fast charging speed for electric vehicle batteries, especially for vehicles driven every day or close to that.

A household EV charger is just a special connecter wired up to a power source rated for a higher current at 230v.

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mousicle t1_iyeoq6r wrote

You would have to build in 4 different kinds of plugs, normal plugs, big dryer plugs, level 2 charging plugs and fast charging plugs. Instead of having 4 differnt plugs it's easire to have one socket and have the different plugs at the place you charge. A lot of cars do come with an adapater so you can just plug into a normal outlet though that you carry with your car.

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Spiritual_Jaguar4685 t1_iyeobqg wrote

In a sense, you can just plug in electric cars. The issue is that most "residential" electrical circuits don't give enough energy to charge an EV in a reasonable amount of time. As far as I know, most EVs can be plugged into a standard US wall plug but it will take north of a day to charge the batteries. So not exactly convenient.

So the chargers aren't just devices you plug into an existing receptacle like a laptop charger, they are special dedicated circuits that directly run back to your home's main electrical distribution panel to give more powerful energy directly to your battery. Even so, these kinds of charges might need an hour or two to recharge your batteries.

Special 'high-energy' charging stations use levels of electricity that your home doesn't even have, they require dedicated transformers and gear on a more commercial or industrial scale and can charge your batteries in 15 or 20 minutes.

EDIT - so to be clear, all these different sources of electricity require various equipment to make them "receivable" by the car. It would be like your cell phone have a powerbrick built into it with a USB-C and USB-Micro connector, a 2 prong and 3 prong 120V receptacle, and a NEMA plug, with all the various transformers required to charge the battery properly. That's clearly a dumb way of designing a portable product and we have various power cords, multi-adapters, and power bricks built into the wires we use to charge, and not into the cell phone itself. Same-same with EVs.

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M8asonmiller t1_iyeoa2b wrote

Or they only got created when weather permitted. It parts of Germany it was illegal to make beer during the winter because low temperatures make the ferment inconsistent and unpredictable. You had to make all your beer ahead of time and store it. Candy is similar- high humidity interferes with evaporation of water from the sugar, making it sticky. Many people don't make candy before or after heavy rain or storms.

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parautenbach t1_iyenm8u wrote

There's been some great explanations, so I'll add something else.

Programming languages can also be ranked according to how close they are to the hardware. Assembly code is at a pretty low level where it directly gets translated to machine code. Assembly code contains e.g. jump instructions which is a more basic version of a goto statement. Anybody that has coded like this knows it can get pretty complicated quickly — as mentioned by others. That's what you have, so you need to use it, but you can build higher level abstractions where you don't directly need to deal with it (higher level languages, function calls, etc.).

Now, in many old games (like running on DOS), a popular hack was to disassemble the code and then insert jump statements to get around password or other checks. This is one place where it was useful, albeit perhaps illegal in some cases. This is also potentially useful for code where you don't have the source to recompile it, but need to fix something (I don't have an example at hand, but it has happened).

Lastly, it also gets used in a form of hacking known as ROP (return oreinted programming).

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OneMoreTallDude t1_iyeniwi wrote

Can't speak for all banks, but I bank with a credit union and they offer something similar. I can send money to any other credit union checking or savings account instantly, for free. They charge me to send money to federal banks though or internationally.

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Malkiot t1_iyemrmt wrote

Does the US not have really easy wire transfers as we do in the EU? I can literally transfer money from an account at any bank to any other bank within the EU from my phone. I only need the recipient's account number. Hell, for 2€ (BS fee) I can do an instant transfer which credits the recipient's account immediately.

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Brother_Longmont t1_iyem90c wrote

Just watched the Temple Grandin bio movie starring Claire Danes! Our 3 year old daughter was diagnosed ASD last year. This movie was very insightful in ways that all the therapists & literature have not been able to illustrate. Our daughter’s ASD is exhibited in many atypical ways that the movie touches on. Definitely an additional ray of sunshine added to our perspective of our daughters future journey. Great reply!

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ColonelBoogie t1_iyelqu6 wrote

The question assumes that accuracy and realism were the end goal of the artist or the subject, or at least would be a desirable outcome. I'm not sure that's a fair assumption. We live in a world influenced by photography. Portraiture can imitate photography because photography exists to imitate. Prior to that development, capturing the "essence" or displaying the beauty of a subject may have been more desirable.

Let's say you're painting a portrait of Washington. The man was known to be stern, but fair. He was generous to friends and supporters but also had a fierce temper if pushed too far. He carried himself with the surety and sense of nobility that a planter from a FFV would have. But those aren't physical characteristics. Still, the artist would be expected to convey those qualities through their work. So maybe you broaden his shoulders, soften his eyebrows to emphasize his eyes, reduce the swelling in his jaw, get rid of a few wrinkles in his brown, straighten his nose to be more reminiscent of Roman emperors (Idk if that was actually done except for the jaw thing. Just examples). You convey the essence of the man and not just his image.

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woslwe t1_iyell5d wrote

It depends. There are some chips that perform very basic tasks, such as sending regular timing signals, which are required in all kinds of systems. More elaborate chips, such as microcontrollers and microprocessors, can usually be programmed to do many different things.

That doesn't necessarily mean they're easily interchangeable though, since they vary in terms of physical size and shape, voltage requirements, reliability, ability to withstand extreme temperatures, processing speed, etc. So it might take a lot of work to adapt a system to use a different kind of chip, or it might have an impact on its performance or reliability. I would imagine that some military equipment is usually made using very specialized, high-performance electronic components, while some just uses standard civilian components.

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lucky_ducker t1_iyelfvg wrote

At your level of drinking, stopping cold turkey can be dangerous, even fatal. Consider seeking out a medically supervised withdrawl management program (they used to be called "detox"). These clinics are physician supervised and usually use low-dose benzodiazapines to wean your brain off addiction.

A lot of these programs like Fairbanks are expensive and require either good insurance or that you have the means to self-pay, but others like Salvation Army Harbor Light Centers will pretty much take all comers.

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Ansuz07 t1_iyekaan wrote

They are still the easiest way to move moderate amounts of money at low cost. I'm not going to show up and pay my $2k HOA dues in cash, nor am I going to bother with trying to set up a wire transfer. I'm just going to cut them a check and move on.

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Ansuz07 t1_iyek07t wrote

> What is the gain in allowing it?

People tend to get upset when the bank doesn't let them access their money. Telling a client - particularly a wealthy one - that they can't have their money for several days may lead to them moving to another bank.

Since the vast majority of people deposit valid checks, there is little risk to the bank allowing them access to funds before those checks have cleared.

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ProstMeister t1_iyejt4f wrote

Consider also that in former times, rules and techniques on how to properly render perspectives were unknown. Bringing a 3D scene to a 2D drawing is not so trivial.

More on that topic: http://www.essentialvermeer.com/technique/perspective/history.html#:~:text=In%20its%20mathematical%20form%2C%20linear,De%20pictura%20%5BOn%20Painting%5D

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