Search PBS Space Time

Results

	2022-04-27: How the Higgs Mechanism Give Things Mass 11:37: ... decay, and we saw how this can lead to the creation of cosmic strings in a recent episode. But cosmic strings are the perhaps ...
	2022-03-08: Is the Proxima System Our Best Hope For Another Earth? 19:45: I don’t know how you’d do this besides observing a cosmic string, but I suspect there are ways. 16:48: And the one on cosmic strings - topological defects that may span the length of the universe. 18:27: OK, on to cosmic strings. 18:33: When those cosmic strings radiate gravitational waves, how is the Higgs field supposed to smooth itself out? 19:20: Or are cosmic strings the only indication of a change in phase angle? 19:51: ... Scoot asks whether cosmic strings could explain the filaments and voids in the large scale distribution of ... 20:03: So the answer is maybe to the first two - but only if cosmic strings influence the CMB. 20:24: ... structure is defined by those density fluctuations, so in that sense cosmic strings could have influenced it - but not directly in the sense of cosmic ... 20:38: ... dark matter - extremely unlikely - in our most accepted understanding of cosmic strings there aren’t anywhere near enough of them to account for dark ... 16:48: And the one on cosmic strings - topological defects that may span the length of the universe. 20:24: ... strings could have influenced it - but not directly in the sense of cosmic strings causing string-like structure in galaxy ... 20:03: So the answer is maybe to the first two - but only if cosmic strings influence the CMB. 18:33: When those cosmic strings radiate gravitational waves, how is the Higgs field supposed to smooth itself out?
	2022-02-23: Are Cosmic Strings Cracks in the Universe? 07:33: ... swirl around a central line. And that central line is our cosmic string. Other topological defects may be possible. For example, a ... 10:09: ... see multiple images or even a ring surrounding that lens. A cosmic string would also deflect light towards itself, but that can ... 12:19: ... may give us the data that we need to find these. Now if we do find a cosmic string, there’s one other point of confusion we’d need to ... 10:09: ... see multiple images or even a ring surrounding that lens. A cosmic string would also deflect light towards itself, but that can only lead to a ... 00:00: ... defects stretching across the sky. These are cosmic strings, and many physicists think that they have to exist, and that we can ... 00:58: ... formed from topological defects in the quantum fields, aka cosmic strings. They have subatomic thickness but prodigious mass and they ... 08:50: ... the universe. Unlike the topological defects in ice, cosmic strings move and vibrate. They are also under pretty insane tension, ... 10:09: ... breaking up of loops accelerates their demise. OK, that’s what cosmic strings do. Now, how do we find them, assuming they exist? Well let’s ... 12:19: ... The strings of string theory have nothing to do with the cosmic strings that I described. For one thing, they’re ridiculously ... 10:09: ... radiating kinks in cosmic strings. The other way to spot cosmic strings also relies on a gravitational effect: gravitational lensing - ... 00:58: ... forces. And it’s the freezing of this field that can give us our cosmic strings. Now a quantum field is just some numerical property that the ... 10:09: ... spot the tell-tale signals from gravitationally radiating kinks in cosmic strings. The other way to spot cosmic strings also relies on a ... 12:19: ... waves and the lensing. But there are differences. While cosmic strings almost always intercommute when they collide, cosmic ... 07:33: ... amidst the first bawlings of the baby universe and woven some cosmic strings. What do they look like and what do they do? Those phase angles ... 12:19: ... gravitational wave signature. Now we haven’t actually found cosmic strings or superstrings … yet. But our searches have given us bounds on ...
	2021-02-17: Gravitational Wave Background Discovered? 00:00: ... enormous gravitational waves and there are theoretical sources also cosmic strings topological seams in the fabric of space would produce waves when their ...
	2020-10-05: Venus May Have Life! 13:48: And, ultimately, to ally with them in war against the cosmic string entities in the heart of the Sun that we discussed recently.
	2020-09-28: Solving Quantum Cryptography 14:24: Last week we talked about a highly speculative idea - lifeforms inside stars, formed from cosmic strings and magnetic monopoles.
	2020-09-21: Could Life Evolve Inside Stars? 03:56: A 1-D topological defect is a cosmic string - an extremely thin filament. 00:16: Oh, and here’s an extra crazy one - life composed of cosmic strings and magnetic monopoles, evolving in the hearts of stars. 01:03: ... that fundamental kinks and defects in the fabric of the universe - cosmic strings beaded with magnetic monopoles - may evolve into complex structures, and ... 01:28: What exactly are cosmic strings and magnetic monopoles? 01:38: Cosmic strings and magnetic monopoles are what we call topological defects. 07:00: Others have speculated that cosmic strings may get trapped inside stars in the process of star formation. 09:50: ... going to have to get a much better understanding of cosmic strings and monopoles - and, you know, actually verify that they exist in the ... 11:28: ... those who don't know, James is a higher being composed of cosmic strings and monopoles, visiting Earth from the core of the Sun to help spread ... 01:03: ... that fundamental kinks and defects in the fabric of the universe - cosmic strings beaded with magnetic monopoles - may evolve into complex structures, and even ...
	2018-04-18: Using Stars to See Gravitational Waves 05:00: ... universe in which binary supermassive black holes were common, or from cosmic strings, if they ...
	2016-10-12: Black Holes from the Dawn of Time 03:21: For example, the collapse of cosmic string moves and the collision of bubble universes?

9 result(s) shown.