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WELCOME
TO
BLACK
HOLE
FAQ
INDEX
BLACK HOLES
Illustration Credit: A.
Feild (http://www.stsci.edu/) Science
Credit: NASA and Felix Mirabel (Institute for Astronomy and Space Physics
of Argentina and the French Atomic Energy Commission)
What is a black
hole, exactly?
Black
hole
Tutorial:
Black holes.
What is a black hole, really?
Black hole
history
ANSWER
What is a
"singularity"?
The point at the centre of a black hole
where the laws of physics break down.
Singularities.
How does the gravity get out of the black hole?
ANSWER.
Can you explain "spaghettification" near a black
hole?
This is caused by tidal forces.
Super
massive black holes
What would an
object look like falling into a black hole?
Event
horizons.
What happens to you if you fall into a black hole?
What is an event horizon?
ANSWER
If light always travels at a constant
speed, and it's the distance that changes, and light can't escape a black
hole, inside the event horizon of a black hole must have an infinite
size
ANSWER
Does a black hole have greater
gravitational attraction than the star from which it originated?
ANSWER
If there were a black hole between Mars
and Earth would this affect the Earth in any way?
ANSWER
How long would the earth survive, in the
event that the sun turned into a black hole?
ANSWER
BLACK HOLES
(cont)
If
something bigger than a black hole is being pulled towards it, what will
happen?
ANSWER
What is the theoretical maximum size for
a black hole?
ANSWER
What is the critical mass of a black
hole? And what happens when it is full, …a big bang?……..turn back into a
sun?
ANSWER
Why doesn't the black hole at the centre
of the galaxy swallow our galaxy?
ANSWER
How has it been demonstrated that black
holes are real?
ANSWER
What evidence is there for a black hole
at the center of our Galaxy?
ANSWER
What properties define a black hole?
ANSWER
How do black holes emit X-rays?
ANSWER
What colour is a black hole?
What
colour is the material inside a black hole?
ANSWER
Do they produce light?
Do they
produce energy?
ANSWER
BLACK HOLES
(cont)
Are black
holes forever, or will they die one day....and, if the latter....what
happens to them?
ANSWER
If a black hole could hypothetically be
spun up fast enough, would it get to a state where the force that holds it
together would not be able to provide the centripetal force to stop it
from flying apart?
ANSWER
Also if time stops inside a black hole,
where does it begin again?
ANSWER
What is a Cauchy horizon?
ANSWER
Black Hole Thermodynamics
ANSWER
Can a neutron star become a black hole?
ANSWER
What is your view on the miniature black
holes then, are you of the camp that says they don't and will not exist,
do you prefer hard vacuums or new matter etc.
ANSWER
What are the energies needed to make
one? (Miniature black holes)
ANSWER
How do you explain their event horizons
and their dissipation? (Miniature black holes)
ANSWER
If you go too fast do you become a black hole?
ANSWER.
Hawking Radiation ??
ANSWER.
The Black Hole Information Loss Problem
ANSWER.
Is the big bang a black hole?
ANSWER.
http://cosmology.berkeley.edu/Education/BHfaq.html
Black Holes FAQ by Ted Bunn
Ever
wonder what it would look like to travel to a black hole? A neutron star?
If so, you might find this page interesting. Here you will find
descriptions and MPEG movies that take you on such exciting trips. These
movies are scientifically accurate computer animations made with strict
adherence to Einstein's General Theory of Relativity. The descriptions are
written to be understandable on a variety of levels - from the casually
curious to the professionally inquisitive. It is hoped that students from
grade school to graduate school will find these virtual trips educational.
http://antwrp.gsfc.nasa.gov/htmltest/rjn_bht.html
Virtual Trips to Black Holes and Neutron Stars
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