Re:Making a 'sandwich' out of magnets and topological insula...
by marginalia_nu on Tuesday April 12, 2022 @05:10PM
(#31008263)
With a generous interpretation, they can be said to break classical thermodynamics, since they quantum physics onto the table, most notably magnets can have negative temperature according to the statistical definition. Nothing that breaks physics at large, but would probably cause Ludwig Boltzmann a mild headache if he heard about it.
It's still not going to allow you to make perpetual motion machines, though.
Re:Making a 'sandwich' out of magnets and topological insula...
by pwr-electronics on Tuesday April 12, 2022 @05:20PM
(#31008363)
Why would you use a classical model to describe a quantum system? That's the kind of wordplay that those articles do, and almost identical to my example about materials. It's entertaining, but meaningless.
Re:Making a 'sandwich' out of magnets and topological insula...
by marginalia_nu on Tuesday April 12, 2022 @05:24PM
(#31008400)
Well in this case you absolutely can, the results just seem counter to our intuition about temperature. Negative temperature is a meaningful description of these types of systems.
Re:Making a 'sandwich' out of magnets and topological insula...
by pwr-electronics on Tuesday April 12, 2022 @05:38PM
(#31008529)
I'm trying to explain how articles often conflate "intuition" with "breaking physics", and you're making your argument by conflating them. We're having different conversations.
Re:Making a 'sandwich' out of magnets and topological insula...
by marginalia_nu on Tuesday April 12, 2022 @06:10PM
(#31008866)
Where have I said anything about any of this breaking physics, other than repeatedly clarifying that it doesn't...?
Re:Making a 'sandwich' out of magnets and topological insula...
by pwr-electronics on Tuesday April 12, 2022 @06:20PM
(#31008948)
> With a generous interpretation, they can be said to break classical thermodynamics
Re:Making a 'sandwich' out of magnets and topological insula...
by marginalia_nu on Tuesday April 12, 2022 @06:31PM
(#31009031)
Operative word being classical. Quantum physics breaks classical physics. Stopped being controversial about a hundred years ago.
Thw very same comment specifically states that physics itself is not broken.
Re:Making a 'sandwich' out of magnets and topological insula...
by pwr-electronics on Tuesday April 12, 2022 @06:50PM
(#31009186)
Ok, so you're confirming that you're doing exactly what I said popular science articles often do.
Re:Making a 'sandwich' out of magnets and topological insula...
by marginalia_nu on Tuesday April 12, 2022 @06:56PM
(#31009224)
No I am not. Breaking classical physics is not breaking physics.
Re:Making a 'sandwich' out of magnets and topological insula...
by pwr-electronics on Tuesday April 12, 2022 @07:38PM
(#31009550)
I'm running out of ways to explain myself, so I'll just reword and summarize this thread from my perspective:
OC: Is it broken?
Me: No, they make generous interpretations to claim that it's broken.
You: With a generous interpretation, they can be said to break ...
Like I said, we're not having the same conversation.
Re:Making a 'sandwich' out of magnets and topological insula...
by marginalia_nu on Wednesday April 13, 2022 @04:14AM
(#31012278)
This is just sophistry. You're omitting the crucial context of what it is in these sentences, and it is only when this is done they appear contradictory.
Re:Making a 'sandwich' out of magnets and topological insula...
by pwr-electronics on Wednesday April 13, 2022 @07:51AM
(#31013562)
Of course there are contradictions. I'm talking about journalistic style in magazines. You're talking about something else.
I assume you're referring to how some popular science articles report things. That's just wordplay. Nothing is being bent, broken, or bypassed.
Usually it just means they did something an ordinary homogeneous material couldn't do, for example. Which is genuinely interesting, even if it's not actually breaking physics.