Slashdot Mirror
How an Astronaut Falling Into a Black Hole Would Die Part 2
First time accepted submitter ydrozd writes "Until recently, most physicists believed that an observer falling into a black hole would experience nothing unusual when crossing its event horizon. As has been previously mentioned on Slashdot, there is a strong argument, initially based on observing an entangled pair at the event horizon, that suggests that the unfortunate observer would instead be burned up by a high energy quanta (a.k.a "firewall") just before crossing the black hole's event horizon. A new paper significantly improves the argument by removing reliance on quantum entanglement. The existence of black hole "firewalls" is a rare breakthrough in theoretical physics."
I love how we treat blackholes specially.
The escape velocity of a neutron star is about 1/3 the speed of light --- and getting mass to 1/3 the speed of light is absolutely impossible.
Escape velocity from the Sun is 617 km/per second --- not even New Horizons at 35,000 kph is anywhere close to that!
Jupiter's escape velocity? About 60 kps --- so if New Horizons was 8 or 9 times faster, would match that.
But black holes --- are not especially dangerous to humans in any way that any other massive objects (gas giants included) aren't. For some reason, we teach kids and adults that blackholes are "evil" and suck up everything --- but blackholes are very helpful holding galaxies together and binding our galaxies together so that they are warm and stable for extremely long periods of time.
Without blackholes, the universe may not be able to support life without the stability that blackholes give to galaxies.
So quit dogging our friends, the blackholes, you insensitive jerks!
Priest: "Universe from nothing, no laws of physics, sped up time"+ huge discrepancies. Creationism? No. Big Bang Theory
No he wouldn't. With an acceleration of 1g you can reach the edge of the visible universe in a mere 40 years due to time dilation. A nearby black hole would take much less time.
See http://math.ucr.edu/home/baez/physics/Relativity/SR/rocket.html