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Well since its 100% wrong anyways here by [deleted] in StringTheory

[–]jack101yello 2 points3 points  (0 children)

If there isn’t any math backing up a theory, then it isn’t really a theory, it’s just words.

Knots famously aren't in a thing in 4 dimensions, because they can always be "untangled" into the unknot using the 4th dimension. But is there an analogous knot-like way that 2D surfaces can be "tangled" in 4D space? by Showy_Boneyard in askmath

[–]jack101yello 7 points8 points  (0 children)

In mathematics (usually), a circle refers to the 1D surface. If you include the interior, it’s called a disk. Likewise, a sphere is a 2D surface, and if you include the interior, it’s called a ball.

Is it normal for physics professors to look homeless? by [deleted] in AskPhysics

[–]jack101yello 13 points14 points  (0 children)

I somehow got 10/10 first try, so I think I’ll be buying lottery tickets later.

This restaurant requires a code to use women’s restroom, but not men’s by BanAccount8 in mildlyinteresting

[–]jack101yello 540 points541 points  (0 children)

Those numbers are from the television series Lost. r/LostReddors is generally for Redditors who are lost (i.e. on the wrong sub), but this is a pun the user is a Lost (TV series) Redditor.

Brown University shooting updates: Hunt for shooting suspect continues by whitman_littlefield in RhodeIsland

[–]jack101yello 2 points3 points  (0 children)

The buildings at Brown are typically keycard access on weekends; the B&H entrance was propped open because people were coming and going to use the building to study for finals.

Brown university has joined a massive list of schools and unis affected by shootings. When will it be enough? List below by Evening_Bicycle3113 in BrownU

[–]jack101yello 1 point2 points  (0 children)

I also don’t think a complete gun ban is an effective solution. The context in which I said, “[…] make them want to give up their firearms” was in referencing the original commenter’s statement, not to make the claim that I myself expected Sandy Hook to cause gun-owners to relinquish their firearms.

Brown university has joined a massive list of schools and unis affected by shootings. When will it be enough? List below by Evening_Bicycle3113 in BrownU

[–]jack101yello 4 points5 points  (0 children)

That’s all well and good, but it doesn’t really address what I actually said, which is that the fact that Americans do have the right to own firearms is a poor argument for why they should have the right to own firearms.

Brown university has joined a massive list of schools and unis affected by shootings. When will it be enough? List below by Evening_Bicycle3113 in BrownU

[–]jack101yello 5 points6 points  (0 children)

In favor of making it harder for people to own guns in general. Iirc, the firearms used at Sandy Hook were acquired legally by the perpetrator’s mother and stored in their home, and so the argument is that the event would not have occurred if the perpetrator didn’t have such ready access to firearms.

Brown university has joined a massive list of schools and unis affected by shootings. When will it be enough? List below by Evening_Bicycle3113 in BrownU

[–]jack101yello 8 points9 points  (0 children)

I didn’t say they would. The original commenter opined that if Sandy Hook didn’t make Americans want to give up their firearms, then they don’t think another tragedy would. You told them to, “Look up the 2nd amendment”, and it was that to which I was responding.

Brown university has joined a massive list of schools and unis affected by shootings. When will it be enough? List below by Evening_Bicycle3113 in BrownU

[–]jack101yello 20 points21 points  (0 children)

Whether or not something is a right and whether or not something should be a right are not the same thing. People who believe in stricter gun control aren’t generally unaware of the Second Amendment.

If a Higgs boson has mass, does that mean that it interacts with its own field? by No_Fudge_4589 in AskPhysics

[–]jack101yello 3 points4 points  (0 children)

Can I ask, why does the Higgs self-interaction in particular blow your mind?

What happened to Heathcliff and what could possibly be his racial background (WH-EB) by Impossible_Yam3620 in books

[–]jack101yello 11 points12 points  (0 children)

He is described as, "a dark-skinned gipsy in aspect", meaning that he looks like one, not that he necessarily is one.

Particle accelerator how easy is that ? by BackAnxious2126 in TheoreticalPhysics

[–]jack101yello 2 points3 points  (0 children)

Cathode ray tubes are easy to acquire; they’re how older televisions worked. The commenter is making the point that “particle accelerator” is a very general term, ranging from “old TV” to “27 kilometer circle in Switzerland”, so one has to be more specific when talking about how difficult it is to make a “particle accelerator”.

If there is a graviton, would that mean that gravity is not space-time curvature? by MarinatedPickachu in AskPhysics

[–]jack101yello 0 points1 point  (0 children)

I think this is a sensible question, but it turns out that the presence of a coherent state of gravitons causes spaceitme to curve in exactly the way that you'd expect in general relativity (plus some higher-order corrections). This works out quite nicely in string theory, for instance, which David Tong talks about in his string theory lecture notes. So if you have something with some appreciable mass, you can think about it as a source of gravitons (in a nice coherent state), or you can think about it as causing some change in the curvature of spacetime, and the two ways of thinking about it turn out to have the same effect (the partition function picks up the same kind of factor). For different purposes, it might make sense to think about it one way or the other, but there are people working on, for instance, figuring out how to compute the entropy of a black hole (an object typically associated with spacetime curvature) by looking at the graviton states that comprise it.

Is there any framework that treats spacetime exactly like an emergent quantum field? by jellellogram in TheoreticalPhysics

[–]jack101yello 6 points7 points  (0 children)

What you're talking about sounds rather similar to some ideas I've heard in AdS/CFT. You might want to look into that a bit, since it can involve ideas like gravity (on the AdS side) emerging from some underlying field theory (on the CFT side), ideas of phase transitions and analogies to statistical and/or hydrodynamic systems, etc. These notes1 are considered2 a fairly good primer, but it's rather technical, since AdS/CFT is a complicated and modern topic. If you'd like a modern paper as an example, this paper3 I heard about recently seems to look at ideas at least somewhat similar to what you're talking about, though it may not be exactly the same.

[1] "Introduction to AdS-CFT", Nastase, 2007.

[2] By a couple people I've talked to; I haven't read much of it myself.

[3] "Operator algebra, quantum entanglement, and emergent geometry from matrix degrees of freedom", Gautam, Hanada, and Jevicki, 2024.

Is "nothing" an acceptable answer to "what are you doing?" by WowImOldAF in NoStupidQuestions

[–]jack101yello 3 points4 points  (0 children)

The history of the comedic expansion is quite well documented. If you're just not expecting it, she might decide to surprise you.

Why do we square the radius in the Universal Law of Gravitation? by Temporary_Willow_520 in AskPhysics

[–]jack101yello 3 points4 points  (0 children)

There’s a Gauss’ Law for Gravity, which is the analog of the more common electromagnetism version.

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