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The curvature of space- time.
Gravitational effects are not due to the force interaction of bodies and fields in space-time, and the deformation of space-time, which is associated, in particular, with the presence of mass-energy. Einstein's equation establishes a relationship between the curvature of space-time and the matter present in it.
Friends! What do You think Λ is in Einstein's equation? Write your answer in the comments!
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Astronomers announced on Wednesday that at last they had captured an image of the unobservable: a black hole, a cosmic abyss so deep and dense that not even light can escape it.
For years, and for all the mounting scientific evidence, black holes have remained marooned in the imaginations of artists and the algorithms of splashy computer models of the kind used in Christopher Nolan's outer-space epic “Interstellar.” Now they are more real than ever. #darkuniverse #darkenergy #scientist #blackhole #bh #physics #firsttime #astronomy #science #discovery #observation
Learn how to do Infinite 3D loops like this in my Masterclass! I have spent the last month recording my workflow and now it’s finally ready for everyone to enjoy and learn. Thanks a lot @motiondesignschool for making this possible. Read more at motiondesign.school (Link in Bio) Sound by @darwoodmusic
Another black hole post. I decided to include the Kerr metric with the new image from the Event Horizon Telescope, to show the mathematics of rotating black holes, as we have observed M87’s black hole to be rotating (and we expect real black holes to rotate). .
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As explained in previous posts, the metric tells you how to measure “spacetime intervals” (the spacetime equivalent of a distance), in a particular region of spacetime. The metric completely describes the geometry of spacetime, and you can directly calculate the curvature from it. The variables are: r is the distance away from the center of mass, r_s is the Schwarzschild radius, θ and φ are the spherical coordinate angles, a is the angular momentum per unit mass, Σ ~ r^2 + a^2 (plus a couple other terms) is an effective radius.
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Follow @cosmological_redshift for more particle physics, cosmology, and grad school posts! .
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Collecter les statistiques #PHYSICS effectuez une recherche à l'obtention des statistiques (Aller à la sélection).