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2022-09-28: Why Is 1/137 One of the Greatest Unsolved Problems In Physics?
- 08:33: ... value for the fine structure constant or many of the other fundamental constants. ...
- 12:55: ... hints at a connection between the other fundamental constants - perhaps pointing to an underlying common mechanism that set the ...
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2022-02-10: The Nature of Space and Time AMA
- 00:03: ... one thing that is clear is that the speed of light isn't the most fundamental constant okay it's a constant with units and um we tend to think of the ...
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2021-06-16: Can Space Be Infinitely Divided?
- 01:16: ... We now see it everywhere in quantum mechanics - it’s a fundamental constant of nature that defines the scale of the ...
- 06:39: ... We have this thing that’s full of our wonderful fundamental constants - in fact, in the exact form as the Planck length ...
- 07:48: ... This explains why the Planck length is this combination of fundamental constants - it’s the wavelength of a photon that creates a black ...
- 06:39: ... We have this thing that’s full of our wonderful fundamental constants - in fact, in the exact form as the Planck length ...
- 07:48: ... This explains why the Planck length is this combination of fundamental constants - it’s the wavelength of a photon that creates a black hole of the ...
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2020-07-28: What is a Theory of Everything: Livestream
- 00:00: ... out a hundred thousand um in contrast if you try to predict the 32 fundamental constants of the standard model using some new model that itself has a thousand ...
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2020-02-18: Does Consciousness Influence Quantum Mechanics?
- 15:01: ... asked whether we would get new quantum fields and new particles if other fundamental constants turned out to vary over space, in the same way that a variable theta ...
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2020-02-11: Are Axions Dark Matter?
- 04:33: ... new terms get added and the strength of those terms is governed by a new fundamental constant - theta. It’s tricky to describe what theta actually signifies - in fact ...
- 05:16: ... zero - at least not within the standard model of particle physics. This fundamental constant may have ended up very close to zero just by chance, but physicists hate ...
- 04:33: ... new terms get added and the strength of those terms is governed by a new fundamental constant - theta. It’s tricky to describe what theta actually signifies - in fact ...
- 05:16: ... words, make theta a new type of field - a dynamic field rather than a fundamental constant. Theta will then naturally fall to zero - because that reduces the overall ...
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2020-01-13: How To Capture Black Holes
- 12:49: ... The hypothesis is trying to explain the apparent fine tuning of the fundamental constants, not the origin of everything. Ideas like cosmological natural selection ...
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2019-12-17: Do Black Holes Create New Universes?
- 00:30: Why, for example, are the fundamental constants - like the mass of the electron or the strength of the forces - just right for the emergence of life?
- 00:50: ... there are countless universes with different fundamental constants, then it’s not surprising that a few exist with the right numbers for ...
- 02:10: ... in their formation the fundamental constants of the daughter universes are shifted slightly and randomly from their ...
- 04:02: ... expanded on the procreating black hole idea by suggesting that the fundamental constants of these new universes could be different to their ...
- 04:14: ... seems plausible - if fundamental constants can change at all then surely it’s in the highest possible energy ...
- 05:36: ... there’s a prediction: the fundamental constants that define black hole production should be close to optimal in a given ...
- 08:09: ... holds, there are no doubt different regions in the landscape of possible fundamental constants where different types of black hole are ...
- 10:44: ... natural selection is meant to explain the fine tuning in the fundamental constants, which appear to be either set by design or by extreme ...
- 13:40: Please email us with the configuration of fundamental constants you’d prefer and we’ll get it right out to you.
- 00:30: Why, for example, are the fundamental constants - like the mass of the electron or the strength of the forces - just right for the emergence of life?
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2019-12-02: Is The Universe Finite?
- 15:40: ... typical universe? Well it would be one whose particular configuration of fundamental constants gives you a universe similar in some respect to lots of other ...
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2019-11-18: Can You Observe a Typical Universe?
- 03:01: That means the fundamental constants and initial conditions of the universe must be just right to allow nice habitable planets to form.
- 03:31: ... get interesting when you add the fact that our universe seems to have fundamental constants and initial conditions that seem extremely fine-tuned for the eventual ...
- 04:21: ... all, it doesn’t tell us WHY the fundamental constants take on the values that they do - or why they may vary between ...
- 14:21: ... very different to ourselves, that could potentially exist if the fundamental constants were ...
- 14:36: Well, actually, fine tuning arguments for the fundamental constants for the most part take that into account.
- 15:26: ... out that I missed one possibility - perhaps the dials defining the fundamental constants were neither randomly set nor deliberately ...
- 15:59: ... that gives you only one universe with an unavoidable combination of fundamental constants that was completely devoid of ...
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2019-11-11: Does Life Need a Multiverse to Exist?
- 00:35: Those equations always include one or more fundamental constants - simple numbers that set the scale for the equation.
- 01:02: ... model of particle physics, there are something like 20 independent fundamental constants of ...
- 11:13: Can we justify the idea of a multiverse with changing fundamental constants?
- 11:24: ... this candidate theory of everything suggests that the values of the fundamental constants, including the vacuum energy, are set by the particular configuration of ...
- 11:47: And there are other proposals for how the fundamental constants might vary over space or between universes.
- 12:21: ... when black holes form, with each new universe having slightly different fundamental constants to its ...
- 15:08: ... able to get different types of complexity and even life by tweaking the fundamental constants in different ways, but there seem to be way WAY more combinations of ...
- 00:35: Those equations always include one or more fundamental constants - simple numbers that set the scale for the equation.
- 11:24: ... this candidate theory of everything suggests that the values of the fundamental constants, including the vacuum energy, are set by the particular configuration of the extra ...
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2018-08-15: Quantum Theory's Most Incredible Prediction
- 04:45: And we talked about this fundamental constant in an earlier episode.
- 11:32: This is the fundamental constant governing the strength of the electromagnetic interaction of charged particles.
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2018-07-11: Quantum Invariance & The Origin of The Standard Model
- 00:33: Our laws of physics are equations of motion tuned by the fundamental constants.
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2017-10-04: When Quasars Collide STJC
- 10:52: Last week, we talked about the intriguing possibility that the fundamental constants of nature are changing.
- 11:00: Nevermind asks whether the fundamental constants are connected to each other.
- 11:35: A few of you took issue with my suggestion that changing fundamental constants help with the fine--tuning problem.
- 11:41: ... the anthropic principle solves the problem without even changing the fundamental constants. ...
- 11:50: ... even the multiverse-- has the same laws of physics, including the same fundamental constants. ...
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2017-09-28: Are the Fundamental Constants Changing?
- 01:46: ... and the evidence, because there's a hint of evidence that at least one fundamental constant is, in fact, ...
- 01:56: To measure changes in a fundamental constant, we first need to choose the right constant.
- 03:20: ... be confident, though we've seen a change in a fundamental constant, way to study a dimensionless constant-- one that has no units, and ...
- 00:20: There is a hint of evidence that the fundamental constants that govern our universe may evolve over time, and even from one location to another.
- 01:14: Why the fundamental constants take the values they do is a very deep and unanswered question.
- 01:33: They predict that the fundamental constants may not be constant at all, and instead, may vary over time and space.
- 09:57: ... to be necessary for the appearance of life are quite sensitive to some fundamental constants, Alpha ...
- 10:25: ... if the fundamental constants vary from place to place, then it's not surprising that we find ...
- 12:34: Richard, thank you, and may your own fundamental constants remain stable and forever within a range that supports life as we know it.
- 09:57: ... to be necessary for the appearance of life are quite sensitive to some fundamental constants, Alpha ...
- 12:34: Richard, thank you, and may your own fundamental constants remain stable and forever within a range that supports life as we know it.
- 10:25: ... if the fundamental constants vary from place to place, then it's not surprising that we find ourselves in ...
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2016-06-22: Planck's Constant and The Origin of Quantum Mechanics
- 10:47: And combined with a small handful of other fundamental constants, it governs the behavior of everything in this space time.
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2015-10-15: 5 REAL Possibilities for Interstellar Travel
- 11:24: ... that point, it perhaps becomes more interesting to ask why other fundamental constants of nature have the values that they do compared to the speed of ...
- 11:33: ... that said, the relative units of the fundamental constants, the speed of light, the strength of the fundamental forces, et cetera, ...
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2015-10-07: The Speed of Light is NOT About Light
- 08:14: That value has to be a combination of the fundamental constants of Maxwell's equations.
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2015-05-27: Habitable Exoplanets Debunked!
- 10:09: ... are on the table to modify the definition of the SI kilogram in terms of fundamental constants of nature, like Planck's constant and the speed of ...
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