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).

1. 01 · yt0.763

   NARRATOR: Direct dark matter detection experiments go back to the 1980s. Xenon-based experiments, similar in design to LZ, to the 2000s. So far, all the experiments combined have detected nothing. But the process constantly narrows down what dark matter could possibly be. And currently, LZ has time on its side. The plan is to accrue a total of three years' worth of data. GHAG: Hopefully, there'll be a direct detection and we'll start to understand the nature of it. It could be that dark matter isn't a simple one-size-fits-all WIMP. It could be that there's multiple different types of dark matt…

   yt/5BNPeFHU7QQ-decoding-the-universe-cosmos-full-documentary-nova-pbs/transcript.txt

2. 02 · yt0.757

   I started graduate school in 1984 at Oxford where my son is starting in the fall which is fun. But I started graduate school in in 1984. The very first paper I wrote was a analysis of a potential dark matter candidate. It was sort of a straightforward research project for a beginning student. No one knows what the dark matter is. So make a guess, hypothesize a new kind of particle with new kinds of interactions to speak to the questioner's question and work out whether cosmologically enough of that stuff would still be around to supply the missing gravity that the astronomical observations req…

   yt/I3_me7RqteE-ask-brian-greene-live-q-a-world-science-festival/transcript.txt

3. 03 · yt0.756

   Dark matter is exactly such a particle. We believe there are dark matter particles in the universe. Most of the mass of the universe by energy is dark matter. We believe that there are probably millions or billions of dark matter particles flying through this room right now and we don't care because they go right through. They do not interact with us. To affect our everyday lives in any way, this new particle would have to interact substantially with the particles that we know are in us like electrons, protons, and neutrons. So imagine there's some new interaction. There's a new particle that …

   yt/rqezWO5Yba8-sean-carrol-the-big-picture-on-the-origins-of-life-meaning-a/transcript.txt

4. 04 · yt0.755

   This is a really hard problem. NARRATOR: There aren't many clues. Aside from its gravitational effect, dark matter appears to interact very little with normal matter, and can pass right through it. It also emits no electromagnetic radiation, no light. There are forms of matter that simply don't glow like stars do, but actually they're also not responding to light. So they are invisible, except through their gravitational force. It probably is something quite exotic. It isn't any of the ordinary stuff. NARRATOR: So who are the suspects for dark matter? There are the MACHOs; the Massive Compact …

   yt/5BNPeFHU7QQ-decoding-the-universe-cosmos-full-documentary-nova-pbs/transcript.txt

5. 05 · _intake0.742

   > But understanding it, may hold the key to the very structure of the universe. My mum is always like, you know, "Why do we have to care about dark matter?" And, and the truth is

   _intake/claims-allbranch/curated-low/dark-matter/001-but-understanding-it-may-hold-the-key-to-the-very-structure-.md

6. 06 · pubmed0.733

   We propose a new strategy for searching for dark matter axions using tunable cryogenic plasmas. Unlike current experiments, which repair the mismatch between axion and photon masses by breaking translational invariance (cavity and dielectric haloscopes), a plasma haloscope enables resonant conversion by matching the axion mass to a plasma frequency. A key advantage is that the plasma frequency is unrelated to the physical size of the device, allowing large conversion volumes. We identify wire metamaterials as a promising candidate plasma, wherein the plasma frequency can be tuned by varying th…

   pubmed/PMID-31702176-tunable-axion-plasma-haloscopes/info.md

7. 07 · yt0.726

   Is there any chance we find out what dark matter actually is in our lifetime? Well, I won't go through the whole rigomeroll again. Yeah, absolutely. I mean, there are detectors now capable of detecting for instance this particle called an axion that I mentioned in various windows and parameter space and sure they could be successful that that might be where this all ends up. Similar question. Do you think string theory will be proven experimentally someday? And how much time do you currently spend on string theory research? So two questions. Part one, will it be experimentally proven someday? …

   yt/I3_me7RqteE-ask-brian-greene-live-q-a-world-science-festival/transcript.txt

8. 08 · yt0.725

   But the extra dimensions that we don't see with the naked eye, but the mathematics claims exist, those dimensions could be contracting while our dimensions are expanding. That wouldn't bother us because we don't see those extra dimensions. So we don't know what they're doing. We don't even know if they exist, of course. But assuming that they do they could be static, maybe, or they could be contracting and they could be expanding. So yes, can you imagine a situation where there's a big rip in our dimensions and not in the other ones? Yeah. Yeah, it could be that the repulsive gravitational pus…

   yt/nH8c60ZbSgw-live-q-a-with-brian-greene-world-science-festival/transcript.txt

9. 09 · yt0.723

   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

10. 10 · yt0.717

    To get down a mile, um, takes a bit of time. NARRATOR: Why build a dark matter WIMP detector so far underground? GHAG: So a mile of rock above us here in the Black Hills of South Dakota that shield us from cosmic radiation, that is bombarding us all the time. And being underground, we're able to reduce that by factors of millions. So this experiment up on the on the surface just wouldn't be able to run at all. It's just far too sensitive. WORKER: And then go ahead, hop on the train. Ready? Yep. NARRATOR: After the ten minute ride down, it's on to a battery-powered locomotive, followed by a bri…

    yt/5BNPeFHU7QQ-decoding-the-universe-cosmos-full-documentary-nova-pbs/transcript.txt