Wish I would have skipped the speech and just listened to the questions. I was thinking when I was listening to the lecture to just give up, or give up at the questions. But the questions were the best part.
Those black-hole 'jets' are damn curious things... While it can be argued that the black hole doesn't exist in our universe (anymore), because we can no longer interract with it in any way, shape, or form -- those jets are quite real, and certainly within our universe.
Ur reasoning is faulty. Interaction with something does not determine whether it exists or not. Secondly, where did u get that we may not interact with bh. Black holes were predicted a long time ago, and were observed many a time. Thirdly, the logic behind bh is so straight forward and logical.
tropickman Again, the operative term is 'in our universe'. Wherever they are, they're not here. We have only the rough perturbation outline of them IN OUR UNIVERSE. They have zero volume in our universe!! As for why we cannot interract with them -- what kind of interraction would you suggest which would permit the data or probe to come back out? I am not completely ignorant of black holes (though we all are somewhat ignorant, given the patchwork of knowledge we have of them), and have had 4 increasingly difficult logic classes for my degree. It's not that my logic is bad, but that black holes defy logic given our current understanding of them.
@ren estrugo is correct. @hns it will never be confirmed observationally for the simple reason it takes something like 10 to the 100 years to evaporate
"Black Hole, the first major motion picture to use computer images and the worst and most unscientific movie Disney ever made and "Event Horizon", a movie made purely for money with big A+ stars that was so bad they still won't speak of it. Dear Larkinchance, Many times in proton collisions at the LCH, they produce tiny black holes which disappear almost instantly. This happened when they found a Higgs boson. How did he get into Stanford? Heis smarter than both of us combined and has actually done something substantive with his life. Try watching Kip Thorne's lecture on gravity and black holes.
Question from audience member.. "Is there a black hole between the Earth and the Sun?"
How did this person get into Stanford?
Wish I would have skipped the speech and just listened to the questions. I was thinking when I was listening to the lecture to just give up, or give up at the questions. But the questions were the best part.
Good lecture and some of the best graphics and photos I've seen on this topic.
That radio image of Cygnus A is incredible
So cool knowing the future... from 2019 LIGO, Event Horizon Telescope, etc.
Those black-hole 'jets' are damn curious things... While it can be argued that the black hole doesn't exist in our universe (anymore), because we can no longer interract with it in any way, shape, or form -- those jets are quite real, and certainly within our universe.
Ur reasoning is faulty. Interaction with something does not determine whether it exists or not. Secondly, where did u get that we may not interact with bh. Black holes were predicted a long time ago, and were observed many a time. Thirdly, the logic behind bh is so straight forward and logical.
tropickman
Again, the operative term is 'in our universe'. Wherever they are, they're not here. We have only the rough perturbation outline of them IN OUR UNIVERSE. They have zero volume in our universe!!
As for why we cannot interract with them -- what kind of interraction would you suggest which would permit the data or probe to come back out?
I am not completely ignorant of black holes (though we all are somewhat ignorant, given the patchwork of knowledge we have of them), and have had 4 increasingly difficult logic classes for my degree. It's not that my logic is bad, but that black holes defy logic given our current understanding of them.
The matter in the jets never broke the plain of the event horizon
Are supermasive blackholes eternal?
Vegan Battista nope =P they will eventually vanish because of Hawking Radiation
+Ren Estrugo That isn't confirmed by observations yet.
@ren estrugo is correct. @hns it will never be confirmed observationally for the simple reason it takes something like 10 to the 100 years to evaporate
Thanks for not showing the SLIDES too long, watching a man for 1 1/2 hour is
way more interesting
/sarc
My name is Andrew Fracknoi
I think that Hawking radiation is present with all black holes regardless the size.
3:30 Event Horizon is based on a TRUE story.
-its basically a documentary.
Lol sure sure
"Black Hole, the first major motion picture to use computer images and the worst and most unscientific movie Disney ever made and "Event Horizon", a movie made purely for money with big A+ stars that was so bad they still won't speak of it. Dear Larkinchance, Many times in proton collisions at the LCH, they produce tiny black holes which disappear almost instantly. This happened when they found a Higgs boson. How did he get into Stanford? Heis smarter than both of us combined and has actually done something substantive with his life. Try watching Kip Thorne's lecture on gravity and black holes.
Greeataat💙👓😮😊
i always thought the same
Amazinh
Sort of yeah it must mean something. it's alright, but I think I disagree,
Looks like a skinny version of Michael Caine
A very boredom speaker.
Half of the public will go to sleep.