I just went to a conference in Hawaii, which is usually a very popular, but half the poster boards were bare. I saw multiple recorded talks because the speakers were denied entry visas, including one of the opening keynote speakers.

And the fuse for the circuit absolutely should not be the limiter, the RCCB should trip WAY before the main fuse.

While that certainly SHOULD be the case, in the US at least while RCCBs (we call them GFCIs) are generally required in wet areas and perhaps for new construction, in most older houses the majority of circuits don’t have any sort of ground fault protection other than the fuse/breaker. In my current house we have them on only two outlets - one in a bathroom and one in the kitchen.

In most household shocks, you touch a conductor, and you are the resistor to ground. Your resistance is independent of the drive voltage, so if you touch a 110V wire, the current will be half of what you get with a 220V wire. So the voltage determines the current, and thus the lethality.

There’s lots of other factors that go into the effective resistance like the amount of moisture on your skin, what shoes you’re wearing, and what the floor is made of, etc, but in all cases twice as much voltage will cause twice as much current. You are by far the highest resistance element in the circuit, so your resistance will completely determine the current - most household circuits are capable of supplying 10-15A continuously, so your resistance is the current limiter.

It’s a bad idea either to go touching live wires either way, but the rule of thumb I heard was was that a 110V shock usually won’t kill you and 220V shock usually will.

Fun fact - some soldering irons regulate their temperature using the curie point. There’s a disk of ferromagnetic material with a particular curie point in the tip. A magnet in the barrel of the soldering iron is attracted to the tip, and when it sticks to the tip, it switches the heating element on. When the disk hits its curie temperature it’s no longer magnetic, and the magnetic switch opens and shuts off the heating element (it’s on a weak spring). When the tip cools down enough it becomes magnetic again, and the magnet is pulled to it and turns on the heater. You can have different tips with different curie temperatures, so one soldering iron can do multiple temperatures with very cheap internal electronics (basically, just a switch).

Elon Musk, guardian of free speech!

A road built and maintained by taxpayers is much cheaper (to a shipping company) than building, maintaining, and operating a railway. Making taxpayers responsible for the infrastructure you use is one way to make your business much more profitable.

Yes, but that’s all subsidized by taxpayers, so it’s more expensive overall but cheaper for YOU.

What it will mean in practice is that every objective fact has to be balanced with a right wing talking point.

“US stock market sees the worst day since the last time Trump was President.”

Oh wow, NYT. That’s a super deep insight. Nobody else picked up that maybe, just maybe, 47 was a teensy bit racist.

Gosh Tim. How is that million dollar personal contribution directly into Trump’s pocket to Trump’s inauguration fund working out for you?

Trump’s plan for ending the genocide is to let Netanyahu complete it.

“He blew the whistle on a multibillion dollar company - obviously he knew they’d kill him! Suicide.”

Go for it. I’m sure it will go better than the last time they tried it.

I’m sure that’s a much more effective than trying to build up US companies to make solar panels.

“I’ll believe corporations are people when Texas executes one.”

Stone ground white corn. Very popular in the southern US. Similar to polenta (which is made from yellow corn) but you can prepare it in lots of different ways.

No worries. Still interesting!

Yeah, I think you’re right.

Ok. Have a nice day.