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Joined 2 years ago
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Cake day: July 18th, 2023

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  • The original paper is called “Excitons in the fractional quantum Hall effect”

    If you know what that means, it’s more clear and less misleading than the phys.org headline.

    If you don’t know what that means, it’s a novel combination of two known properties of materials—excitons and the fqhe.

    The buzz appears to be that it leads to some weird excitations/quasiparticles that have non-bosonic statistics. Namely, anyons and fermionic excitations can appear (the former is a known phenomenon, but the latter has only been theorized—a fact that honestly surprised me). This loosely relates to some types of quantum computers, but in all honesty, I would expect this paper to only be interesting to those in condensed matter physics, and I’m not entirely sure why it was picked up and turned into a thing.


  • This is a forum. If you don’t get the joke, you can ask and have it explained to you. Most memes are some form of in-joke regardless, so you often have to do a bit of learning the first time.

    What was off about your first comment was recognizing it for what it was before proceeding to miss the joke entirely.

    What was off about your replies was trying to compare it to the Scottish coat of arms; if you know the Scottish coa, you probably wouldn’t associate it with piss yellow and white. If you don’t know it, you wouldn’t mix them up anyway.







  • It (along with Stokes’ theorem (they’re actually the same theorem in different dimensions)) helps yield Maxwell’s equations; specifically, if you want to change the flux of the electric field through a surface (right hand side), you need to change the amount of charge it contains (the source of the divergence on the left hand side). In other words, if you have the same charge contained by a surface, it will have the same flux going through it, which means you can change the surface however you wish and the math will still be the same. Physicists use this to reduce some complex problems into problems on a sphere or a box—objects with nice, easily calculable symmetries.






  • I’ve been to this site hundreds of times, but this is the first time I’ve noticed

    xkcd.com is best viewed with Netscape Navigator 4.0 or below on a Pentium 3±1 emulated in Javascript on an Apple IIGS at a screen resolution of 1024x1. Please enable your ad blockers, disable high-heat drying, and remove your device from Airplane Mode and set it to Boat Mode. For security reasons, please leave caps lock on while browsing.


  • It’s (shorthand)[teeline.online]. It says “prc(t)ml” with the p being in the obvious spot (though it should be just a downward line), the r is the diagonal line after it, the c is the little curl, the t should be more pronounced, but it should be a horizontal line slightly above the rest, the m is a concave-down swoosh, and the l is the final curl. No vowels b/c they’re largely redundant.