So these particles are massless. They have no rest mass and you know, something with no rest mass, if it is to have a momentum, it must travel at the speed of light. Because normally, the momentum of anything with
- Concept
- speed of light
- Score
- 4 · must · because
- Status
- candidate — not yet promoted to canon
Corpus evidence — top 10 passages
Most-relevant passages from the entire indexed corpus (67,286 paragraph chunks across YouTube transcripts, PubMed, arXiv, archive.org, Stanford Encyclopedia of Philosophy, OpenAlex, and more) ranked by semantic similarity (bge-small-en-v1.5).
- 01 · yt0.859
As long as you don't screw around with the wavelength of incoming light, the momentum and energy of each packet is identical. It's more than saying light seems to be made of particles. Made of particles, each one of them carries an energy and momentum that's absolutely correlated with a wavelength and frequency. Now let me remind you that w = kc for light waves. We've done this many, many times. That means the energy, which is ℏw, and the momentum is ℏk, are related by the relation E = pc. So these particles have a momentum which is related to energy by the formula E = pc. When you go back to …
yt/uK2eFv7ne_Q-19-quantum-mechanics-i-the-key-experiments-and-wave-particle/transcript.txt
- 02 · yt0.818
Some scientists have actually been known to cut infinite numbers when they find them because they're deliberately looking for finitness [music] instead of embracing the infinite nature of reality. Check out the movie Black Hole. to see this happening in action. Particles are called particles because they're too small to be seen by instruments we have in science at this time. What that means is that we don't really know what particles even are. If we knew what they were, they would not be particles anymore. They would be described. There is kind of a broken dichotomy that is happening in this f…
yt/1hBRzz1VmK0-sacred-geometry-explained-like-never-before/transcript.txt
- 03 · yt0.795
How can we say that light has no mass when we can't even agree upon a definition or understanding of what matter and subsequently mass even [music] are? Because of all of our fancy equations as described earlier, we have kind of thrown all ideas about what light could actually look like out the window in favor of a complex equation that looks like this. I want to [music] take it back to simple. What if we could know the shape of light? What if we could actually define what the structure of light as well as every particle and thing in existence [music] were? What if there was a basic geometry o…
yt/1hBRzz1VmK0-sacred-geometry-explained-like-never-before/transcript.txt
- 04 · _intake0.793
> Okay. So you can say, do you know an example for that? No force. And you would say, well, at least where we live on earth, the first axiom is out of work, right? It's unemployed because there's always the gravitational force. It's just there. It's just there. So what do you mean a particle under no, under the influence of no force? If you ever say no gravity, also Newtonian theory is the curvature of Newtonian spacetime, then it would mean,
_intake/claims-allbranch/curated-low/relativity/005-okay.md
- 05 · yt0.773
Matter is made of particles, forces come from fields. And all of the effort in the future of physics would be figuring out what are all the particles, what are all the fields, and then you'd be done. There were a couple of clouds on the horizon. One of them ended up being relativity, the fact that the symmetries of Maxwell's theory of electromagnetism were different than the symmetries of Newton's theory of classical mechanics. But the others were that there were certain properties of matter and materials that didn't quite seem to make sense. And I'm gonna be ahistorical now. Let's pop forward…
yt/_TBNJyztai0-sean-carroll-explains-the-biggest-ideas-in-the-universe-full/transcript.txt
- 06 · yt0.770
Well, Newton didn't try to describe things moving at speeds comparable to light. He dealt with what problem he could deal with at that time. So, it's a law that has a limited domain of validity. You can always push the frontiers of observation until you come to a situation where the law doesn't work. But the specialty of relativity doesn't also work all the time. If the mass becomes very tiny, it becomes of atomic dimensions, then you need the laws of quantum mechanics. That's wrong too. So, things work in a certain domain and sometimes you abandon the formalism; but don't rush to do that. In …
yt/9vLSx1Iv06U-4-newton-s-laws-cont-and-inclined-planes/transcript.txt
- 07 · yt0.768
If you poke the Higs field, it starts vibrating and you see a little particle called the Higs Bzon. We first successfully did that in 2012. Big news. Uh in Geneva, the Large Hydron Collider, we discovered the Higs Bzon. There are other particles that exist that we know about, but they're just heavier cousins of these particles. So there's not only an electron, there's also a muon and a tow. There's not only an up quark, there's a charm quark and a top quark, etc. All those heavier particles, if you made one right here, it would decay away in an instant. It would make these particles. So the cl…
yt/rqezWO5Yba8-sean-carrol-the-big-picture-on-the-origins-of-life-meaning-a/transcript.txt
- 08 · _intake0.767
Fast moving things (light) do not behave as slow moving ones do. Moreover, it holds that more massive objects, also act differently than those without much mass. Time concerns itself with mass alone.
_intake/kruse-blog-corpus/articles/ubiquitination-14-electrosensitivity-is-antenna-failure.md
- 09 · yt0.766
Physicists like, especially after a certain age, to look around the intellectual landscape and see other fields of inquiry that are not physics and go, I could do that better than they can. I'm a physicist. How hard can it be? This is not what I'm here to do. I am not going to give you definitive final answers about any of these things. But I do think that there is a common vocabulary, a common ground in which we can discuss these various issues. And that's really what I'm here to talk about. So I want to start with a simple question that is uh related to physics but one that also is related t…
yt/rqezWO5Yba8-sean-carrol-the-big-picture-on-the-origins-of-life-meaning-a/transcript.txt
- 10 · yt0.764
Very annoying to me as a modern professional physicist. One of the points that he made was what we now call conservation of momentum. It wasn't exactly in a modern vocabulary. You can debate whether it really counts as conservation momentum in the modern sense, but it was a crucial step along the way because what even Cena mentioned was that really the reason why the bottle of water stops moving isn't because of the fundamental nature of motion. It's because there's a force that is acting on it by the stool that it's sitting on. And he made the point that if you thought there was such a thing …
yt/rqezWO5Yba8-sean-carrol-the-big-picture-on-the-origins-of-life-meaning-a/transcript.txt
Curation checklist
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