I wouldn't do anything solid. The shelves need to allow airflow.

I did some googling, and I didn't find anything prohibiting it. There's a discussion here about the subject, and the general consensus is "If it's GFI protected, go for it"

https://forums.mikeholt.com/threads/receptacle-under-bathroom-sink.10358/

A lot of kitchen sinks have outlets and switches underneath to operate the garbage disposals. So I think it'll be OK.

I'm not an electrician, so take my advice with a grain of salt. But I'd be comfortable with it in my home. I'd use a GFI outlet (or two in series for extra safety) and position the outlet box where it won't get soaked if the sink overflows. For extra points I could use an outdoor rated box. But that feels like overkill to me.

The outlet could be in the cabinet below. You'd just need enough room to snake the cord down into the cabinet. Make sure that you can fit a bulky plug, like the ones on hairdryers.

Leave the gap and put an outlet down below it. Anything electric can be plugged in down there and the cord can dangle into the gap, leaving the counter nice and clean.

OP said that they're both on the same breaker, so they should be safe. But your point is well taken.

It's not going to ignite on its own. But if you do have a fire, it's a big panel of combustible material right in front of the window that you might need to use as an emergency exit.

TL/DR: They don't reject electricity or any other technology outright. They pick and choose the technology that will benefit them, and reject anything they feel is detrimental.

Long version: There's many flavors of Amish, and all follow different rules. Technology is allowed or forbidden depending on its impact on the community. Telephones? Some communities love them, it brings distant neighbors together. Cellphones? Yes, for the same reason. A smartphone that lets you spend all day scrolling Reddit, that's probably not going to fly because it'll separate you from your community rather than bringing you closer.

And there's also rules for what's allowed at work. A friend of mine bought a trailer from a PA company, and she was surprised to see Amish people driving forklifts, running power tools, arc welding, etc, as part of the manufacturing process. The Amish aren't held to the same standards when on the job, because doing so would make them unemployable.

So yeah, it's not as simple as it seems, and every community is a little different.

That's what I said.

There's a third kind that's used for gun hearing protection. Shooters earmuffs use passive noise cancellation, but also have external microphones and internal speakers. When you wear them, the microphones transmit sound to your ears. But they will not transmit any loud noises such as gunshots.

The result is that they give you super sensitive hearing. But there's no risk of hearing damage, because if the electronics fail or the battery goes dead, you're left with passive noise cancellation.

In Lucifer's Hammer by Larry Niven and Jerry Pournelle, a couple of the characters calculate the damage that would happen if the planet was hit by a cubic mile of hot fudge sundae. Basically, it doesn't matter what it is, at that speed it's going to cause global catastrophe.

Another option is superglue. If you ever want to remove it, a little heat from a propane torch is all that's needed to make the superglue release its bond.

You're basically right. If the fuse is 7.5a, then the wires can handle at least that.

Typically automative wiring is a bit oversized, because you can't spec an exact wire size for a circuit's draw. You have to buy the size that supports it, and that may be a bit bigger. For instance, to run 15' of wire to support your 7.5a draw, you'd use 12ga wire. But that wire can handle 10 amps, so you have plenty of reserve.

And the fuses are also a bit oversized, because nobody wants a car that'll constantly pop fuses. The device on that circuit might draw 5 amps or less normally.

Dashcams draw very little power. Google says 0.5a at 5v is typical.

The result is that you have a healthy safety margin built in, and you're not risking much by plugging a dashcam into the circuit.

Empirically, I've done it on 4 or 5 cars at this point, and have never had an issue.

Usually the mirror area has constant power for things like emergency buttons and map lights. And there's usually switched power up there as well, although sometimes it can behave oddly. For instance, my V60 has switched power that comes on when you unlock or open a door, and stays on until the car is off and locked, or off and unlocked for several minutes. That was perfect for my use, because it meant that I could start the camera just by unlocking the car. If a scenario ever came up where I wanted to record events in front of the car, I could just tap the unlock button.

A shut-in redditor who discovers that civilization has collapsed while they remained inside their home. They are the last person alive. But if everybody is dead, who have they been talking to online?

I'm not a professional plumber, and I'll share with you the rule that I use when I decide whether I'm going to get a pro in for a job.

If I'm not 100% confident that I can do it myself, and if it's something that is going to leave me without working plumbing until I finish, I get the pro.

I'm willing to live without a single sink or toilet working while I take a couple days to figure things out and get the right parts. But I'm not willing to completely disable my home's plumbing for days. That's just not worth it.