Wednesday, November 11, 2015

Black Holes By: Lauren Barclay, Logan McReynolds, and Corey Trent

https://youtu.be/JIQpGn5FzmU

22 comments:

  1. What are the chances of Earth falling into a blackhole?

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    1. Very unlikely. Though it is possible that Earth will fall into a black hole in the very distant future. There's a theory that it will be kicked out of the solar system eventually, which might lead to Earth falling into the black hole at the center of our universe.

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  3. Why can't you see the light that passes through a black hole?

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    1. You can't see the light because it's not passing through the black hole at all - the singularity of a black hole is so dense that no matter, not even light, can escape. It's (probably) all crushed into the singularity.

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  4. What do you mean by "space and time have no meaning" when referencing the singularity of a black hole?

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    1. The singularity of a black hole is an infinitely dense point where gravity is infinite and spacetime warps, and the laws of physics as we know it cease to operate.

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  5. is there an estimated number of supermassive black holes in our universe?

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    1. The universe is infinite, so that would be impossible to answer. There's an estimated 100 million black holes in our own galaxy, however.

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  6. Where does a black hole's energy and power come from?

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    1. The power of the singularity comes from its infinite gravity, warping space and time. There are still mysteries surrounding aspects of black holes, such as the jets that are sometimes shot out from them, probably originating in the accretion disk. There have been theories that we could somehow harness black holes to produce large amounts of energy, somehow.

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  7. In comparison to the event horizon how large is the singularity ?

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    1. Singularities are infinitely small, no matter what you compare them to. The masses of black holes vary, and the radius of a black hole's event horizon changes depending on the mass of the black hole.

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  8. In comparison to the event horizon how large is the singularity ?

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  9. Who first discovered black holes?

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    1. Albert Einstein was the first to predict black holes, in 1916, but Charles Thomas Bolton was the first to physically discover one, in 1971.

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  10. What do you mean by what a black hole "would like to be"?

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    1. I actually said "what they like to eat" - referring to gas, stars, light, and anything else that reaches the event horizon.

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  12. How do we know that black holes formed at the same time as our universe?

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  13. How do we know that black holes formed at the same time as our universe?

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  14. How do we know that black holes were formed at the same time as the universe?

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