MinutePhysics5.82 млн
Опубликовано 30 ноября 2017, 17:20
Thanks to brilliant.org/minutephysics for sponsoring this video! Check out their black hole course at brilliant.org/minutephysicsbla...
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This video is about the Schwarzschild radius of a black hole, (its "event horizon"), and how much mass and density is required to reach the point of no return where an object like a star, neutron star, red giant, etc will collapse into a black hole singularity. You can calculate it yourself using just the volume equation for a sphere, and the equation for the Schwarzschild radius (and knowing the speed of light and Newton's gravitational constant).
REFERENCES
Lecture notes on black holes: eagle.phys.utk.edu/guidry/astr...
Mass of cat: google.com/search?q=mass+of+ca...
Schwarzschild radius: en.wikipedia.org/wiki/Schwarzs...
LIGO Neutron Star Binary Merger: astronomy.com/news/2017/10/lig...
Tolman-Oppenheimer-Volkoff Limit: en.wikipedia.org/wiki/Tolman%E...
Neutron Star Equation of State & Density: chimera.roma1.infn.it/OMAR/dot...
Neutron Star Radius: citeseerx.ist.psu.edu/viewdoc/...
MinutePhysics is on twitter - @minutephysics
And facebook - facebook.com/minutephysics
And Google+ (does anyone use this any more?) - bit.ly/qzEwc6
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
Support MinutePhysics on Patreon! patreon.com/minutephysics
Link to Patreon Supporters: minutephysics.com/supporters
This video is about the Schwarzschild radius of a black hole, (its "event horizon"), and how much mass and density is required to reach the point of no return where an object like a star, neutron star, red giant, etc will collapse into a black hole singularity. You can calculate it yourself using just the volume equation for a sphere, and the equation for the Schwarzschild radius (and knowing the speed of light and Newton's gravitational constant).
REFERENCES
Lecture notes on black holes: eagle.phys.utk.edu/guidry/astr...
Mass of cat: google.com/search?q=mass+of+ca...
Schwarzschild radius: en.wikipedia.org/wiki/Schwarzs...
LIGO Neutron Star Binary Merger: astronomy.com/news/2017/10/lig...
Tolman-Oppenheimer-Volkoff Limit: en.wikipedia.org/wiki/Tolman%E...
Neutron Star Equation of State & Density: chimera.roma1.infn.it/OMAR/dot...
Neutron Star Radius: citeseerx.ist.psu.edu/viewdoc/...
MinutePhysics is on twitter - @minutephysics
And facebook - facebook.com/minutephysics
And Google+ (does anyone use this any more?) - bit.ly/qzEwc6
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
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