swansont
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Viewing Topic: Physical, conformal age of the universe
Everything posted by swansont
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Climate modeling and decision milestones
You’r overlooking the physics involved. Specifically, the Stefan-Boltzmann Law Nobody claimed the science is flawless. One of the flaws of the graph you provided is that does not include the error bars on the results. If you want to know how they came up with that result you need to read their paper, not some shoddy critique, and also not focus on one individual result. It’s cherry-picking.
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Climate modeling and decision milestones
The information about absorption in gases is quite extensive, certainly the basics are covered. Not finding the data means you haven't looked in the right place. NIST, for example, has an extensive database about atomic and molecular absorption. What "basics" need re-working? Did you ever consider the state of experimental science 160 years ago? Or theoretical, for that matter? Tyndal's work preceded Mendeleev's introduction of the periodic table! Which doesn't matter a whole lot, since the state physics going backward in time, before Tyndall doesn't incorporate a whole lot. The point was to show that better measurements being made over time is a standard part of science, and your dissatisfaction over a convergence of a factor of 2 or 3 is really just indicative of an ignorance of how experimental science progresses. And arguments from a position of ignorance don't carry much weight with most people. How are you arriving at your numbers?
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The next Supreme Court judge
There is no job application here. That’s not a technicality; this is an appointed position. edit: xpost
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The next Supreme Court judge
There are people in the GOP who have spoken out, with fake concern. Evidence to the contrary aside. Perhaps, but who is saying that? But who is claiming that goalposts were moved for this candidate? The only ones I see are the ones who have already suggested that a black woman can’t be qualified, without even knowing who that candidate is, or what her qualifications are. i.e. that being black and a woman automatically equates to being unqualified. edit: the goalposts are where they’ve been for quite a while “Joe Biden isn’t first to prioritize race, gender in picking SCOTUS nominee” https://www.politifact.com/factchecks/2022/jan/28/sean-hannity/joe-biden-isnt-first-prioritize-race-gender-pickin/
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The next Supreme Court judge
The perspective of being a black woman is not a quality possessed by any of the current or past justices. If that’s a quality you want on the court, so that it would be more representative of the population, then black women would be the only qualified group. White men, for example, would not be qualified. The GOP “concern” is manufactured. There should be no trouble finding a black woman with better judicial bona-fides than Amy Coney Barrett, who they deemed qualified to sit on the bench.
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Climate modeling and decision milestones
How do you feel about the speed of light? It was once thought to be infinite, so it underwent a more dramatic improvement in precision, albeit over a longer time range. https://interestingengineering.com/a-brief-history-of-the-speed-of-light That was for the CO2 absorption spectrum, not climate sensitivity
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"Danger zone" for food and beverages left at room temperature
Did you notice that this refers to food that was being refrigerated?
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Random Mutations and Biological Evolution
A plant is making a conscious response?
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Climate modeling and decision milestones
Googling “carbon dioxide absorption spectrum” only yields about 19 million results The graph shows no such thing. The scale on the graph only covers a factor of 6, and the data doesn’t even span that scale.
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"Danger zone" for food and beverages left at room temperature
Where are you hearing this?
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The Copernican principle
How so? You keep making these vague complaints that make no sense. What would you compare a deviation to, if not the average? Apparently not as well as you thought… Life is part of biology and chemistry, not physics/cosmology. Unless you are arguing that life arose because our location in the cosmos, rather than the conditions on earth.
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How to make radiator
Have you tried using a search engine?
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The Copernican principle
What’s being manipulated? It’s a small deviation. A bump or divot on the billiard ball, so to speak. From your link: The "Cold Spot" is approximately 70 µK (0.00007 K) colder than the average CMB temperature
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Closed Dyson sphere : is it really impossible ?
As you point out, it’s not sealed, so why would they take that into account? But it’s the concept of why the components don’t fall into the sun; you’ve just added a new element. No doubt it would be more complicated, but the point is that the pressure is not going to keep it centered, since there is a similar pressure at all points. You need a different pressure on opposite sides to give a restoring force in a given direction. No, I don’t agree. The mass loss due to the solar wind is negligible. The sun would have “evaporated” long ago if that were the case. The pressure of the solar wind comes from the momentum of the particles. Their velocity is significant (many keV of KE) and some of this will be lost upon impact with the structure. So there aren’t a lot of atoms. It’s about 1.5 million tons (3 x 10^9kg) per second, as compared to the mass of 2 x 10^30 kg. https://slate.com/technology/2014/07/solar-wind-versus-fusion-how-does-the-sun-lose-mass.html
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S.F.B. = "Science Fiction Biology" !!!...
! Moderator Note You've been told before that this is insufficient for discussion. Get an instagram or tumblr account.
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The Copernican principle
Is a tree homogeneous and isotropic? A human? The universe is homogeneous and isotropic on a large scale. i.e. the scale used in astronomy and cosmology. Sometimes this is not explicitly declared, but often it is. http://abyss.uoregon.edu/~js/cosmo/lectures/lec05.html (emphasis added) "if the Universe is isotropic then this means you will see no difference in the structure of the Universe as you look in different directions. When viewed on the largest scales, the Universe looks the same to all observers and the Universe looks the same in all directions as viewed by a particular observer. Homogeneity, when viewed on the largest scales, means that the average density of matter is about the same in all places in the Universe and the Universe is fairly smooth on large scales."
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The first experimental measurement of God; to a 2-decimal point accuracy
! Moderator Note If you want to blog go start a blog somewhere. This fails as science - there is no rigor. It's just hand-waving. You claim 2 decimal point accuracy but describe no experimental results.
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Why exactly cannot cat be in a superposition state?
It's part of how my atomic clocks work. You measure the |g> and |e> state populations of the hyperfine transition, but that's not what collapses the superposition.
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James Webb Telescope and L2 Orbit Question
It's all cumulative, but I don't think mirror quality, per se, gets you all that much. Or other optics advancement. How much advancement in mirror surface quality has been made in the span we're discussing? It's not like you're going to get a factor of even two in how reflective mirrors are as compared to a few decades earlier. So these factors could be in play, but I don't think they're the prime movers.
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Why exactly cannot cat be in a superposition state?
An interaction counts, I think. I shine a pi/2 pulse on atoms and it puts them in a superposition of states (|g> and |e>), and I shine another pi/2 pulse on them and they end up in one of those two states. I then measure the populations of the two. It's the second pi/2 pulse that ends the superposition, not the measurement of the populations.
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Closed Dyson sphere : is it really impossible ?
The static contribution is less than the value of the pressure, to be sure. It can at least be approximated by looking at the gravitational potential energy. The pressure should vary as pgh, where p is the density, g is the gravitational acceleration (which varies with r) It wasn't clear that this was the case. But to "break off" implies that there is some amount of rigidity involved. And this has nothing to do with correcting its position, i.e. the metastable equilibrium issue. What you are describing here is closer to a Dyson bubble. https://en.wikipedia.org/wiki/Dyson_sphere#Dyson_bubble
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Why exactly cannot cat be in a superposition state?
Then the next question is what does it take to collapse a wave function thats in a superposition?
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Why exactly cannot cat be in a superposition state?
Superposition state implies quantum mechanics. Is being dead, or alive, a quantum state?
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Closed Dyson sphere : is it really impossible ?
But it's not from the sun (in direction), if the pressure is building up. Then it's just a gas contained inside a sphere. Solar wind gives a radial force that depends on distance from the origin. A gas in a container, by itself, does not give a force that depends on distance. Then you need to calculate how big this will be. It's the gradient that gives you a restoring force, not the pressure itself. There needs to be a different pressure on one side vs the other to give this force. I was responding to your first post. But why does the sphere need to be supported? That's a different effect than keeping it centered on the sun.
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Why exactly cannot cat be in a superposition state?
In addition to studiot's observation above, is there a connection between the quantum states of the individual atoms and the condition of being alive or dead?