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Black Holes

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Sol Lee

on 4 December 2014

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Transcript of Black Holes

Distance around the singularity where the gravitational pull is too strong for anything to escape.

What is a black hole?
A point in space with so much gravity
What types are there?

How are they formed?
Runs out of fuel and collapses under its gravity

White dwarf - neutron star

Forming a Black Hole
To form a black hole, compression needs to happen.

Schwarzchild radius.
Collapse until it becomes a singularity.
Centered on this singularity will be the event horizon
But where exactly are black holes

The nearest one discovered is still 1600 light years away (about 16 quadrillion kilometers!)

How big are black holes?
Million and billion times bigger than the mass of our sun
Tiny as just one atom - but have the mass of a large mountain
If black holes are black, how can we find them?
Leave behind fingerprints

Can there be a telescope in which we can actually analyze black holes?
With the Energetic X-ray Imaging Survey Telescope (EXIST).
Are black holes really black?
They are not totally black!

How do black holes affect things near them?

It is not harmful if objects are not in the event horizon
Important fact!
Black holes don't suck objects, instead, objects fall into them!
"The internet to me is kind of like a black hole, and I never really go on it."
- Jennifer Lawrence
But what exactly is the event horizon?

ppens if a


enters such place?
You're doomed.

The center of a black hole
What can we learn from black holes?
We don't know much, yet. But they might be the answer to everything.
Hawking Radiation
Energy fluctations from vacuum causes the generation of particle-antiparticle pairs of virtual particles near the event horizon of the black hole
Recent findings
ernational group
of researchers dis
covered that
first 'lighting' from a bla
ck hole,
with variations in brilliance more powerful than ever observed in an extragalactic object.
How does this relate to physics?
Who proposed this idea?
Pierre Simon Laplace
Schawarzchild Radius
Gravitational radius
Full transcript