Transcript Black Holes - Cloudfront.net

Black Holes
By Mr. Wheeler
Why did i choose this topic?
i Chose this topic because i have
always been interested in astrophysics.
Research question
What are black holes and how do
they work?
Hypothesis: i think that black holes are super
dense collapsed stars that are so dense that
even light can’t escape it.
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Source info
• Hubblesites.org
• “Black Holes in Our Back Yard” By Richard
Talcott
• “Galactic Showdown” By Stephanie Warren
• “Beyond THE Event Horizon” By Steve Nadis
• “How Do We Know Black Holes Exist” By Liz
Kruesi
What are black holes?
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According to Stephanie Warren, “A black
hole is an object in space that has such
strong gravity that nothing can escape
it”(Warren).
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Black holes are formed when a dying star
collapses.
“information about what happens inside a
black hole can never leave— a cosmic
equivalent to Las vegas”(Talcott).
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John Michell
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Pierre-Simon Laplace
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There are two types of black
holes
• Stellar Masses
and
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• Super MassiveQuickTime™ and a
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How do Black Holes Work?
“Black holes have such intense
gravity because their centers are
infinitely dense: All of their mass is
packed into one miniature dot.
Even light--the fastest thing in the
universe—is trapped by their
sucking pull”(Talcott).
Think about trash compacting
everything in Castro Valley to a
one-foot square.
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Now, compact that square so you can
no longer see it.
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Once a black hole is formed, it starts to
gobble up everything around it (Talcott).
Sagitarius A* is made up of material equal
to 4 million suns.
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www.blackholes.edu
So, what is a black hole and how does it
work?
i hypothesized that black holes were super
dense collapsed stars that are so dense,
that even light cannot escape.
i was right!!!
Additional questions
• What does the area inside of the event horizon
look like?
• What happens to the objects as they are being
sucked in to the black hole?
• How many black holes do we know about?
Conclusion
Black holes are:
Super dense collapsed stars from stars that
are at least 20 times bigger than our sun.
Black holes work:
By reducing everything it engulfs in to a
singularity which is super dense has no
volume.
Black holes are interesting, but i know that my
thirst for astrophysics can only be quenched by
more research.