Diffeomorphisms | Differential geometry | Conservation laws | Symmetry
In physics, a symmetry of a physical system is a physical or mathematical feature of the system (observed or intrinsic) that is preserved or remains unchanged under some transformation. A family of particular transformations may be continuous (such as rotation of a circle) or discrete (e.g., reflection of a bilaterally symmetric figure, or rotation of a regular polygon). Continuous and discrete transformations give rise to corresponding types of symmetries. Continuous symmetries can be described by Lie groups while discrete symmetries are described by finite groups (see Symmetry group). These two concepts, Lie and finite groups, are the foundation for the fundamental theories of modern physics. Symmetries are frequently amenable to mathematical formulations such as group representations and can, in addition, be exploited to simplify many problems. Arguably the most important example of a symmetry in physics is that the speed of light has the same value in all frames of reference, which is described in special relativity by a group of transformations of the spacetime known as the Poincaré group. Another important example is the invariance of the form of physical laws under arbitrary differentiable coordinate transformations, which is an important idea in general relativity. (Wikipedia).
http://www.teachastronomy.com/ A lot of fundamental concepts in physics are based on the idea of symmetry. Symmetry is familiar to us in an aesthetic sense. It often means things that have pleasing proportion, or look the same from every direction, or have a harmonious nature about them.
From playlist 23. The Big Bang, Inflation, and General Cosmology 2
Symmetry in Physics | Noether's theorem
▶ Topics ◀ Global / Local Symmetries, Continuous / Discrete Symmetries ▶ Social Media ◀ [Instagram] @prettymuchvideo ▶ Music ◀ TheFatRat - Fly Away feat. Anjulie https://open.spotify.com/track/1DfFHyrenAJbqsLcpRiOD9 If you want to help us get rid of ads on YouTube, you can support us on
From playlist Symmetry
The science of symmetry - Colm Kelleher
View full lesson: http://ed.ted.com/lessons/the-science-of-symmetry-colm-kelleher When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is "a transformation that leaves an object unchanged." Huh? Colm
From playlist New TED-Ed Originals
This video was produced by Nina Qiu of Year 10 (2015).
From playlist Random
The Predictive Power Of Symmetry
From a bee’s hexagonal honeycomb to the elliptical paths of planets, symmetry has long been recognized as a vital quality of nature. Einstein saw symmetry hidden in the fabric of space and time. The brilliant Emmy Noether proved that symmetry is the mathematical flower of deeply rooted phy
From playlist Science Shorts and Explainers
Symmetries show up everywhere in physics. But what is a symmetry? While the symmetries of shapes can be interesting, a lot of times, we are more interested in symmetries of space or symmetries of spacetime. To describe these, we need to build "invariants" which give a mathematical represen
From playlist Relativity
Richard Feynman - The Character of Physical Law - Part4 Symmetry in Physical Law (full version)
Richard Feynman The Character of Physical Law Part4 Symmetry in Physical Law full version
From playlist Feynman's Lectures
First example of using a symmetry principle show a conserved quantity. I show that the conservation of linear momentum comes from a radial symmetry in forces.
From playlist Physics ONE
Teach Astronomy - Broken Symmetry
http://www.teachastronomy.com/ It's a premise of unified theories of nature that the world is governed by an underlying single superforce, but we live in a world where the symmetry is not obvious. Matter vastly dominates antimatter, and the four forces of nature have vastly different stre
From playlist 24. Chemistry and Context for Life
Symmetries, Duality, and the Unity of Physics (Lecture – 01) by Nathan Seiberg
DATE: 08 January 2018, 16:00 to 17:30 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Lecture 1: 8 January 2018, 16:00 to 17:30 Title: Symmetries, Duality, and the Unity of Physics Abstract: Global symmetries and gauge symmetries have played a crucial role in physics. The idea of duality d
From playlist Infosys-ICTS Chandrasekhar Lectures
Spontaneous Symmetry Breaking and The Higgs Mechanism
Symmetries are very important in physics, but what happens when these symmetries get broken? Full Standard Model Playlist: https://www.youtube.com/playlist?list=PL-RmwJq2kMwkDEUJwf1fmMi7ucxQZUVjM
From playlist Standard Model
The Symmetries of the universe
Why is energy conserved? What's a gauge symmetry? How were quarks discovered? All these answers in 15 minutes! 0:00 - Introduction 0:35 - Global symmetries 2:23 - Conservation laws 4:17 - Global symmetry for electrons 5:49 - Our real universe 7:42 - Changing point of view 11:23 - Local sy
From playlist Quantum World
Symmetries of Nature and Nature of Symmetries by Rohini M. Godbole
Kaapi with Kuriosity Symmetries of Nature and Nature of Symmetries (ONLINE) Speaker Rohini M. Godbole (Indian Institute of Science, Bengaluru) When 4:00 pm to 5:30 pm Sunday, 24 January 2021 Where Livestream via the ICTS YouTube channel Abstract:- Symmetries in geometrical shapes and ob
From playlist Kaapi With Kuriosity (A Monthly Public Lecture Series)
Noether's theorems and their growing physical relevance by Joseph Samuel
DATES: Monday 29 Aug, 2016 - Tuesday 30 Aug, 2016 VENUE: Madhava Lecture Hall, ICTS Bangalore Emmy Noether (1882-1935) is well known for her famous contributions to abstract algebra and theoretical physics. Noether’s mathematical work has been divided into three ”epochs”. In the first (
From playlist The Legacy of Emmy Noether
Mod-01 Lec-7 Physical Properties of Crystals (Continued)
Condensed Matter Physics by Prof. G. Rangarajan, Department of Physics, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist NPTEL: Condensed Matter Physics - CosmoLearning.com Physics Course
Symmetries in Deep Learning - Deep Random Talks - Episode 18
Notes and resources: https://ai.science/l/c0f9aaa5-0c7a-4177-8948-85c933cb6d25@/assets -Join our ML slack community: https://join.slack.com/t/aisc-to/shared_invite/zt-f5zq5l35-PSIJTFk4v60FML177PgsPg -Visit our website: https://ai.science -Book a 20-min AMA with Amir: https://calendly.
From playlist Deep Random Talks - Season 1
Hermann Nicolai - Symmetry and Unifi cation... - 24-10-2018
https://www.sns.it/eventi/symmetry-and-unification-can-physics-be-reduced-single-formula Colloqui della Classe di Scienze Hermann Nicolai (Max Planck Institute for Gravitational Physics) Symmetry and Unification -- can Physics be reduced to a single formula? Abstract "Attempts to `unif
From playlist Colloqui della Classe di Scienze
Lisa Randall - Why Do We Search for Symmetry?
Free access to Closer to Truth's library of 5,000 videos: http://bit.ly/376lkKN Symmetry is when things are the same around an axis. Turn it and it looks the same. A simple idea with profound implications for understanding the universe and for predicting how it works. Finding symmetries,
From playlist Closer To Truth - Lisa Randall Interviews
A07 Using a symmetry principle to derive Newtons third law
Deriving Newton's third law from a symmetry principle. I'll be using translational invariance in homogeneous space and symmetry principle and shows that, through a thought experiment (virtual displacement) and using Newton's second and first laws that it hides a conservation principle (li
From playlist Physics ONE
Why “Change without Change” is One of the Fundamental Principles of the Universe | Big Think
Why “Change without Change” is One of the Fundamental Principles of the Universe Watch the newest video from Big Think: https://bigth.ink/NewVideo Join Big Think Edge for exclusive videos: https://bigth.ink/Edge ------------------------------------------------------------------------------
From playlist The universe explained | Big Think