Modern and Theoretical Physics
Atomic structure, nuclear physics, etc.
2462 topics in this forum
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Planck units like the mass and length come up all over the place in modern physics---they are not the only system, there are other convenient special purpose units, but they are worth getting familiar with. Using the google calculator we can take a kind of almost experimental approach to planck units, explore, build up our concepts, try them out. It is easy---a few posts will show what I mean. So here's a brief tutorial. 1. get to know hbar (Planck's constant) Think of hbar as being the product of amounts of energy and time. Check that by typing things like this into google hbar/minute hbar/year It will give you answers in energy terms----small amounts …
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Reputation Points
- 30 replies
- 43k views
- 1 follower
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Theory of Nature: Unified Properties of Magnetism, Electricity, and Light "I have turned this page into a discussion so that everyone can respond. From my physics research paper" "In this page, I am not going to express my own opinion or objection, because I should not determine the direction of the discussion's flow."
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- 5 replies
- 350 views
- 2 followers
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Ive been off and on watching for papers researching the hubble contention between early and late time measurements. Figured I would share this interesting article here. https://arxiv.org/abs/2408.06153 One of the factors involved being Leavitts law https://www.astro.gsu.edu/lab/website/4LeavittLab-1.pdf The main point however is the paper expresses no new physics is required and supports the need for tighter constraints on luminosity to distance relations including tighter calibrations. Last link above is just a quick overview of the law. Below is a more recent calibration papers. https://arxiv.org/abs/2509.16331 A simplistic way of describing the law is The longer the pe…
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Reputation Points
- 1 reply
- 98 views
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Tachyons are hypothetical particles that can travel faster than the speed of light. Einstein’s theory of relativity does not allow these types of particles as that theory deems c or the speed of light, the absolute speed any particle can go. To overcome this loophole, Tachyons have masses that are of imaginary numbers or numbers that are the square root of negative numbers. Another theory is that tachyons have spacelike four momentum instead of the normal timelike four momentum. The theory why tachyons can travel beyond the speed of light is because it is the exact opposite of normal particles. As the velocity of normal particles reach closer and closer to the speed of li…
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- 3 replies
- 227 views
- 2 followers
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Hey everyone! 👋 What are the possibilities of using AI and physics-informed learning methods to analyze physical data? 🤔 How can this approach help uncover physical laws, especially when data is random or sparse? ⚡ Would love to hear your thoughts! 💬 #Physics #DataScience #MachineLearning #PhysicsDiscovery
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- 16 replies
- 570 views
- 3 followers
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If 3 axles divided a sphere would it maintain free energy? 270degrees/180=1.5
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Reputation Points
- 4 replies
- 244 views
- 3 followers
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Hello everyone. This was seen on a Facebook group . Any comments/expertise are welcome. A Quantum phase space-based approach to unification The theory of relativity unifies space and time through the concept of spacetime, and changes of reference frames are described by Lorentz transformations, which "mix space and time." In this unification approach, energy-momentum is unified with spacetime through the concept of quantum phase space, and changes of reference frames are described with linear canonical transformations, which "mix energy-momentum and spacetime. " The concept of phase space originates from the Hamiltonian analytical formulation of classical mechanics. This …
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Reputation Points
- 5 replies
- 280 views
- 2 followers
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I found on Stackexchange -physics this paradox that undermines physics by exposing a fundamental disconnect between the logic that underpin physical theories of reality https://physics.stackexchange.com/questions/848867/the-dean-paradox-undermines-physics-by-exposing-a-fundamental-disconnect-between
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Reputation Points
- 15 replies
- 1.7k views
- 3 followers
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Hello everyone, I recently heard about the concept of "celestial holography". The sentence that first caught my attention with this notion is the following: "Celestial holography proposes that our universe can be understood as a projection on the night sky" (found in this link : https://www.pppl.gov/events/2024/colloquium-celestial-hologram-stargazing-quantum-gravity-and-back). I would therefore like to ask for more explanations (if anyone knows more) or simply opinions related to this concept and its possible applications and importance for physics. Thanks
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- 0 replies
- 775 views
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The article describes some experiments conducted at the KR-2024 inertial fusion facility. This installation has a plasma compression ratio of more than 1000 MPa. The thermonuclear fuel is specially upgraded cooled water, which is injected into the reactor core. In October 2024, an experimental inertial fusion facility KR-2024 (hereinafter KR-2024) was built in the city of Wenzhou (China). This installation was developed based on a series of scientific experiments conducted from December 2023 to August 2024. During the operation of KR-2024, its modernization was carried out, the time range of fuel injection was revealed, and the time range of operation of th…
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- 0 replies
- 747 views
- 1 follower
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I’m wondering if anyone here has followed the Wolfram Physics Project? If so, what are your thoughts on it? The text in the link is a long-ish read, but well worth it. When I first heard of this I didn’t think much of it, but I must admit that the idea has really been growing on me. It’s a fascinating approach to a TOE (if one can call it that), and those of you who have known me for a while will notice that it contains many of the elements I have been advocating for some time now, such as chaos/complexity, graph theory etc. And some of the preliminary results are tantalising. I know this thing isn’t so popular in most of the physics world, but I’m curious to he…
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- 11 replies
- 2.9k views
- 2 followers
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Saw this on the Fediverse so also sharing here, sounds pretty good to me, and if this gives more institutions access to anti matter for research that is a good thing. The most dangerous delivery truck? How a lorry-load of antimatter will help solve secrets of universe https://www.theguardian.com/science/2024/dec/08/cern-antimatter-secrets-universe-science Does anyone know where more information can be found about this, Or can they share if anything is found. Hope this is interesting anyway Paul
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- 2 replies
- 869 views
- 2 followers
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"In a cutting-edge development, that has sent shockwaves through the scientific community, researchers at University College London (UCL) have unveiled a radical theory that seeks to reconcile two pillars of modern physics – quantum mechanics and Einstein's general theory of relativity." Most of this is beyond me, but does anyone think this is a "cutting-edge development"? https://www.msn.com/en-us/news/technology/revolutionary-new-theory-finally-unites-quantum-mechanics-and-einstein-s-theory-of-general-relativity/ar-AA1sKLme?ocid=msedgdhp&pc=U531&cvid=8f705b996d7b40b5b2e77ece1cfecc61&ei=35#
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Reputation Points
- 3 replies
- 1.4k views
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Why is the Universe there if it is nothing - as I claim it is? Well, there is one single relation that makes a difference, nothing is reluctantly exposed without real something (anti-nothing) in the Universe! And it will try to avoid that - static awareness - by gradually disappearing - active unawareness (sleep) - from/as itself again! Now with a static launch. The conditions are not easy to maintain though, with nothing becoming more alone again - without a static launch. The exposure will then take over again - nothing will wake up to a new 24-hour or a first particle/'quantum’. Nothing will continue this dynamic shift with a lightspeed fast (re-)production of new fu…
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- 5 replies
- 1.1k views
- 2 followers
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Then which of the remaining fundamental forces manifest as degeneracy pressure, and what, if any, is the force carrying particle? Sorry, I did try to export this quote into a new topic, but I couldn't find the right button.
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Reputation Points
- 11 replies
- 1.7k views
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I am trying to find how much force is generated when a cooled super conductor is hovering above a magnetic field. So let' s say 250 gram superconductor will have hoe many lift force whren it is hovering ? Or does the electric magnetic field on wich ot is hovering provides the lift force?
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Reputation Points
- 4 replies
- 1.5k views
- 1 follower
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I always believed that stupid questions dont excist, just stupid answers. If In a closed alluminium cube with supercooled mercury at the top and a high performance electric magnetic field at the bottum. Will the upgoing lift "because it is in a closed space" lift the cube with mercury and the magnetic field generator and would that even be theoreticly possible or is the idea so unbelievable that it hasnt even been explored? Or put it in a tube rhe mercury and use the magnetic field to make the mercury lift to the top of tube (tube not filled full) and use the kinetic energy from the mercury hitting the top of tube to create lift gor the tube by pulsing t…
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Reputation Points
- 7 replies
- 1.2k views
- 2 followers
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Relatively For Larger mass objects time passes slower meaning that the extremely small would be extremely hard to view for the extremely large due to time dilation (extremely fast) and for the extremely small it would be extremely hard to view things that are happening at the extremely large scale because of time dilation (happening to slow).. Mass displaces SpaceTime which forces SpaceTime to be compacted at the edges and when peering at that object from a distance we are peering through that compacted space-time which allows us to see it in the time relative to us but for that Mass object space time is actually expanding at a slower rate so in all actuality the compacti…
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- 1 reply
- 1.3k views
- 1 follower
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Hello everyone, I saw a very interesting video and I am confused. Can a monkey really write so accurately if given infinite time? Doesn't this prove the superiority of randomness over creativity?
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Reputation Points
- 14 replies
- 2k views
- 1 follower
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Hello, I am new here, I hope that I'm not violating any rules by posting my work on the unification of physics. I submitted this paper today, and I hope I can atleast a detailed review from the journal. This paper is my most serious work on the topic, and it start defining a function that is sometimes seen in solutions to some equations in Engineering and Physics. Then it discusses it's properties and identities, then it defines a coordinate system based on on it. Then QM and GR expressed in those coordinates and are connected together through a general form of GR incorporating the mass gap equation's solutions, all within the newly defined coordinates s…
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Reputation Points
- 25 replies
- 2.6k views
- 2 followers
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Been examining a newer way of looking at Feymann integrals that greatly helps simplify some of the mathematics. The method employs the charge conjugation relations to simplify allowable interactions on Feymann integrals. https://arxiv.org/pdf/hep-ph/9601359 Figured this would get a bit of interest for discussion.
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- 1 reply
- 923 views
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So far the largest element we as humans have made is oganesson, with 119 protons and electrons. But we can go bigger. The question is, how much bigger? Can we do 120 protons? 200? 1000? I'm just curious because because I haven't read much on the laws of general relativity and I'm bored It's been like 4 years since my last post 💀 I can merge replies???? When did that happen?
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Reputation Points
- 11 replies
- 1.9k views
- 2 followers
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I am simulating a solar cell structure with 2D grating and nanoparticles. Is there any possibility of seeing the Talbot effect in the electric field profiles inside the solar cell? What is the circumstance for seeing this effect in this optical structure?
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- 3 replies
- 971 views
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This is a newly research from John A. Macken, Published in Journal of Modern Physics. A new insightful work which gives a very new wave perspective of the Universe. About the theory: In this article, spacetime is modeled as a quantum mechanical sonic medium consisting of Planck length oscillations at Planck frequency. Planck length-time oscillations give spacetime its physical constants of c, G and ħ. Oscillating spacetime is proposed to be the single universal field that generates and unifies everything in the universe. The 17 fields of quantum field theory are modeled as lower frequency resonances of oscillating spacetime. A model of an electron is pro…
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Reputation Points
- 15 replies
- 3.5k views
- 2 followers
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Premise I have this kid, ok? A girl, at that, so, like, the least suitable canditate you'd imagine for a theorethical physics conversation. I'm just a parent. Parents might have deep conversations. But I'm no prof scientist. I work summer jobs to survive, I started coding a videgame on my spare time. I only just learned a bit about javascript. I try reading the posts in this forum and it's all mandarin, alien language. But, I fed Einstein famous E = MC² to my kid, and she broke. Like... brain fried. Then, after we panicked and stuff for 2 days, almost about to call the ambulance, she comes back to reality and starts drawing stuff. Now,…
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- 8 replies
- 1.6k views
- 2 followers
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