Presidential
... Exploding Stars, far away in Cosmos. This is linked to a great mystery in Cosmology Today, which is the possible Presence of a Dark Energy in the Universe. In Supernovae, the core collapses in less than a Second, causing a Massive Explosion. A shock wave then blows off the outer layers of the star. ...
... Exploding Stars, far away in Cosmos. This is linked to a great mystery in Cosmology Today, which is the possible Presence of a Dark Energy in the Universe. In Supernovae, the core collapses in less than a Second, causing a Massive Explosion. A shock wave then blows off the outer layers of the star. ...
Hawking and Black Holes
... singularity (奇點). It has zero size and infinite density. In fact, its properties cannot be described by currently known physics. • The event horizon (穹界) is a sphere centered at the singularity with radius equal to the Schwarzschild radius of the black hole. • What is inside the event horizon cannot ...
... singularity (奇點). It has zero size and infinite density. In fact, its properties cannot be described by currently known physics. • The event horizon (穹界) is a sphere centered at the singularity with radius equal to the Schwarzschild radius of the black hole. • What is inside the event horizon cannot ...
powerpoint file
... We are confident that very massive black holes exist at the centers of most galaxies. Black holes of a few solar masses are believed to form when massive stars undergo core collapse if the collapsed core exceeds the maximum of ~ 3 M permitted for neutron stars. The best evidence for such black hole ...
... We are confident that very massive black holes exist at the centers of most galaxies. Black holes of a few solar masses are believed to form when massive stars undergo core collapse if the collapsed core exceeds the maximum of ~ 3 M permitted for neutron stars. The best evidence for such black hole ...
black hole - Purdue Physics
... Black Holes • After a massive star supernova, if the core has a mass > 3 M, the force of gravity will be too strong for even neutron degeneracy to stop it. • The star will collapse into oblivion (gravity wins, finally) • The neutron star becomes infinitely small. – it creates a “black hole” in the ...
... Black Holes • After a massive star supernova, if the core has a mass > 3 M, the force of gravity will be too strong for even neutron degeneracy to stop it. • The star will collapse into oblivion (gravity wins, finally) • The neutron star becomes infinitely small. – it creates a “black hole” in the ...
Blackholes - Indiana University Astronomy
... universe. Events that occur within the event horizon can have no influence on our observable universe. • Schwarzschild Radius – A measure of the size of the event horizon of a black hole. ...
... universe. Events that occur within the event horizon can have no influence on our observable universe. • Schwarzschild Radius – A measure of the size of the event horizon of a black hole. ...
Big Take
... Sun “tugs” on the planets and pulls them around in their orbits, like a string tied to a whirling kitty toy. But how?? Where’s the string?? If the sun disappears, the planets should instantly “fly off” into space on straight line trajectories. But information can’t travel faster than c, so how can t ...
... Sun “tugs” on the planets and pulls them around in their orbits, like a string tied to a whirling kitty toy. But how?? Where’s the string?? If the sun disappears, the planets should instantly “fly off” into space on straight line trajectories. But information can’t travel faster than c, so how can t ...
