NaevaTheRat [she/her] @ NaevaTheRat @vegantheoryclub.org

Despite all my rage I’m still a rat refreshing this page.

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1 yr. ago

What are people doing that breaks their computers? I have used arch for like 15 years now and nothing ever goes wrong?

The closest would be on my desktop sometimes nvidia drivers are in a state that breaks display reinit on wake from sleep but my thinkpad is always fine.

Seriously who are you weird computer vandals going around and breaking everything all the time? What do you do?

Look I know this is incredibly petty of me but the grouping on those targets there's a photo of is dogshit.

Anyway folks remember, a judge found that Mr Sewell was "of good character" and had a history of helping young men. Just if you're confused as to how this shit is allowed to happen.

There's one fucking thing you do to Nazis, it's self defense.

That house is a nightmare, I love it!

Also looks better than my CSS and the aspect ratio hints that it's responsive but maybe doesn't implement accessibility well. So we score half points there.

I used to run physics labs at uni so I'd hope I was as alright teacher still. Never made it as a real physicist though ;_;

Everything soft and slow like your brain yes.

It's pretty hand wavy. The question: why is the speed of sound so slow? (which is essentially isomorphic to this one) is pretty hard to answer. I can't do the the maths to derive it anymore haha.

There are similar things about light slowdown during refraction and stuff.

It's just much easier to view certain bulk phenomena as waves in homogeneous material but it can be very unsatisfactory. Hence all the bullshit artists in this thread talking about speed limits, the standard model, and time dilation. For some reason "it just be that way ok?" feels more satisfying if the thing you're asserting seems more fundamental, but it doesn't really make stuff clearer.

So have to ask what a solid is to answer this question.

Sticks are quite complex, so lets consider a simpler solid: an elementally pure iron rod.

You can imagine said rod as if it were a fixed array of crystalline atomic cores surrounded by a jelly-like substance. In this 'jellium' model the atomic cores have a positive charge, they are the protons and neutrons, and the jelly has a negative charge. The jelly is the wavefunction that represents the electron structure in bulk. If that makes no sense, congrats on knowing your limits.

You've probably seen the more modern model of an atom where there's a nucleus and around it is an electron fuzz with discrete energy levels. Or if you've studied at uni strange geometry representing a threshold in probability of finding the electron/s there on a given measurement (if not familiar under certain conditions reality kinda unfocuses it's eyes and things that we often think of as points become volumes of possible effect). This is a good model of a single atom, but when we bring atoms together they change each other's properties and the result is that these density functions (the weird electron cloud/shape things) start to blur together.

In our iron rod the electrons delocalize sufficiently we can kinda think of it as a weird jelly. A real stick is more complex, but can kinda be thought of as a stack of smaller jelly treats packed against each other.

When you push on the rod you're mashing the jelly of your hand into the jelly of the rod, this causes a shockwave that begins to spread, it propagates like a ripple in a skipping rope or a bounce on a trampoline. But since it's moving 'amount of electron like properties here'. That makes some areas more negatively charged which drags the positively charged atom cores slowly after it. It moves much slower than the speed of light as we aren't considering individual electrons which can move energy between them via photons, but the propagation of a disturbance in the collective arrangement of many that are tightly linked (we say coupled).

We can't imagine a stick that is perfectly rigid because we would be proposing a kind of matter that does not exist, one which isn't made of a lot of fuzzy electron jelly stuff but something else entirely. We can imagine matter where the jelly is very stiff, and consequently less energy goes into wobbling it all about and the squish moves forward very fast but that speed is still much slower than light because of this collective behaviour.

I don't know why you are pretending to have physics knowledge when you very obviously do not have an education in it. What do you get out of pretending to be an expert on the internet? There's no reward for it.

• Aceticon BcS Applied Bullshit

My mistake, that's why sound travels at the speed of light.

It's just not useful to talk about this at the level of the standard model. We are interested in the bulk behaviour of condensed matter, the fact of the matter is that you will not be able to tell that the other end of the stick has been touched until the pressure wave reaches the end. It doesn't matter if individual force carriers are moving at the speed of light because they are not moving in a single straight line. You are interested in the net velocity.

Wikipedia isn't a textbook. Don't overcomplicate shit and mislead people because you've spent a few hours browsing particle physics articles stoned.

As it so happens the way the atoms push each other is electromagnetism, in other words sending photons (same thing light is made of) to each other but these photons are not at visible wavelengths so you don't see them as light.

Wat? I strongly believe you are not correct. Which is to say, I think you are talking out of your arse entirely. If you push on a thing you peturb the electron structure of the material. These peturbations propagate as vibratory modes modeled as phonons.

While technically some of this energy is emitted as thermal radiation that is not primarily where it goes. And phonons themselves propagate at a slower rate than the speed of light, a significantly slower rate. Like a million times slower.

the OG Nazis were dumb as bricks lmao. Weird nerds with massive egos half of which believed in magic.

No no, the children are Hamas, the buildings are Hamas, the food is Hamas, the journalists are Hamas, the aid conveys are Hamas, the UN is Hamas, the ICC and ICJ are Hamas. It's Hamas all the way down, or at least it would be if anyone had been harmed, but nobody has been. Neighbourhoods just sometimes collapse.

It probably does, unless it's explicitly post menopause hrt. Regardless it's fantastic news, well do I know how much having a hormone deficit can fuck up your life ;)

edit: seems it's explicitly post menopause women. Find a doctor who will defraud the system, since the same reasons justify their inclusion for at least older transwomen where liver function is maybe not so great.

I can't believe you're always trying to defend a colonial project of extermination. You'd be making excuses for Rhodesia if it was around today lmfao. Racist idiot.

Shits cooked. The genocide in Gaza is so straightforwardly evil and Aussie media is just enabling Zionists. So much for the fourth estate.

Western democracy turning to the fascism which our forebeears helped defeat wasn't on my bingo card.

The most annoying thing is the commies 100 years ago being right about this lmao. I certainly had to revisit some of my assumptions when a lot of leftist theory predicted the declines we've been seeing.

mandatory minimum sentencing is a completely fucked up knee jerk reaction. The government does sweet FA to tackle Nazis because half of Parliament is sympathetic to them, then decide to earn some quick PR by interferring with the court system and lending legitimacy to an extremely blunt instrument primarily used to lock up indigenous kids.

edit: no actually fuck this. Anti hate speech laws were only really updated for this shit a year ago (tells ya something huh), there literally hasn't been time to test if the courts are just throwing Nazis back out onto the street with a slap on the wrist. Gaol is basically never good and the idea of punishing someone disproportionately as a warning to others is completely unjust. MMS is largely used in Australia to fuck up children and Aboriginal Aussies, the police still have to actually charge people and since they're sympathic to fascism laws get applied unjustly.

LGBT people face vilification like actual eugenics enforced by the state until last year for trans people in NSW, murder by cops until quite recently that was never investigate, expulsion from private schools (students recently protected I think, teachers not) but faith groups get immunity to existing hate speech laws. The government doing this is in favour of completely ludicrous and fashy anti protest laws, and directs an increasingly militarised police state to spend most of their effort fabricating evidence against climate protestors while intelligence agencies scream into the void about a rising tide of fascism.

Mins himself (large pusher for this from nsw) is an enthusiastic supporter of ethnic cleansing in occupied Palestine. This is not an anti fascist measure from any sort of coherent platform. It is a stupid kneejerk reaction that will do nothing to actually stop facist (remember, they are very good at dog whistles) from a government that has no interest in stemming the tide of fascism.

Bullshit totalitarian cruelty doesn't start being good because it's used against people you hate sometimes, that just legitimises bullshit totalitarian cruelty and provides cover. Fuck this law, fuck this government.

The APS has pretty clear policies on the use of these tools in general. Some experiments are being run but largely policy is "no, it's a liability nightmare"

You can download the model, you do not have the source of the model.

It is similar to releasing a compiled software app as shareware vs publishing your source code.