Exact solutions in general relativity
In general relativity, the pp-wave spacetimes, or pp-waves for short, are an important family of exact solutions of Einstein's field equation. The term pp stands for plane-fronted waves with parallel propagation, and was introduced in 1962 by Jürgen Ehlers and Wolfgang Kundt. (Wikipedia).
SPACETIME CONTINUUM EXPLAINED!!
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From playlist Waves And Theories
Pilot Wave Theory and Quantum Realism | Space Time | PBS Digital Studios
There’s one interpretation of the meaning of quantum mechanics that manages to skip a lot of the unphysical weirdness of the mainstream interpretations: it's de Broglie-Bohm pilot wave theory. Help us continue making this show by contributing here: https://www.patreon.com/pbsspacetime G
From playlist Space Time!
Explaining the Doppler effect. Worked problems.
From playlist Physics - Waves
Solution to problems dealing with the Doppler effect.
From playlist Physics - Waves
Waves 2_2 Wavelength Frequency and Speed
Lecture on wavelength, frequency and longitudinal and transverse speed of waves
From playlist Physics - Waves
Colloquium MathAlp 2018 - Christian Gérard
Aspects de la théorie quantique des champs en espace-temps courbe La théorie quantique des champs est formulée d'habitude sur l'espace-temps plat de Minkowski. L'extension de ce cadre à des espaces-temps généraux permet de mettre en lumière de nouveaux phénomènes quantiques qui surviennen
From playlist Colloquiums MathAlp
Solution to problems dealing with the Doppler effect.
From playlist Physics - Waves
Bourbaki - 05/11/2016 - 1/4 - Piotr CHRUŚCIEL
Piotr CHRUŚCIEL - Anti-gravité à la Carlotto et Schoen Les équations d’Einstein sont, dans leur nature, hyperboliques. Leurs solutions peuvent donc être construites en développant dans le temps des données initiales. Une des difficultés de la théorie est que ces données initiales ne sont
From playlist Bourbaki - 05 novembre 2016
We Found Gravitational Waves...AGAIN!!!
Advanced LIGO detectors have identified a second gravitational wave event occurring from the merger of two black holes. Gravitational Waves Discovered! Here's What You Need To Know - http://bit.ly/24PgHwC Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More:
From playlist Gravitational Waves Explained!
When Black Holes Collide - AMNH SciCafe
When black holes collide, the energy of the event generates intense gravitational waves. These waves were predicted by Einstein in his theories, but scientists have only recently been able to detect them experimentally. In this SciCafe, Barnard College professor and astronomer Janna Levin
From playlist Is the Universe a Simulation?: What We Know
Gravitational Waves Discovery - Sixty Symbols
Discussed by Ed Copeland and Mike Merrifield. Extra footage from these interviews: https://youtu.be/2uYEayOBj1k More on Black Holes from Sixty Symbols: http://bit.ly/Black_Hole_Videos LIGO: https://www.ligo.caltech.edu Cool Black Hole simulations and info: http://www.black-holes.org LHC
From playlist Ed Copeland - Sixty Symbols
Gravitational Astronomy? How Detecting Gravitational Waves Changes Everything
We’ve now had multiple detections of gravitational waves, opening up a whole new field: gravitational astronomy. We talk about the detections made so far, and how we can see the Universe in a whole new way. Support us at: http://www.patreon.com/universetoday More stories at: http://www.un
From playlist Gravity
Lionel Mason - Perturbative formulae for scattering of gravitational wave
The Christodoulou‐Klainerman proof of existence of asymptotically simple space‐times shows that it is reasonable to consider the scattering of characteristic data for the Einstein field equations from past null infinity to that on future null infinity in a neighbourhood of Minkowski spac
From playlist Ecole d'été 2014 - Analyse asymptotique en relativité générale
Learn more at https://www.brilliant.org/spacetime PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE Black holes are crazy enough on their own – but crash two together and you end up with a roiling blob of inescapable space
From playlist Space Time!
Loop Quantum Gravity Explained
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From playlist The Map of Quantum Physics Expanded
Black Holes and the Fundamental Laws of Physics - with Jerome Gauntlett
Black holes are extraordinary and may even hold the key to unlocking the next phase in our understanding of the laws of physics. Watch the Q&A here: https://youtu.be/0GZRt8kIdVE Subscribe for regular science videos: http://bit.ly/RiSubscRibe Black holes are amongst the most extraordinary
From playlist Ri Talks
Waves 2_3 Wavelength Frequency and Speed.flv
Lecture on the wavelength, frequency, longitudinal and transverse wave speeds.
From playlist Physics - Waves