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How Do You Take a Picture of a Black Hole? With a Telescope as Big as the Earth
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Apr 12, 2019 16:07:38   #
Jim Tonne
 
Here is a "relative size" image a friend sent me. ( Not humor ! ) Source is
https://xkcd.com/2135/

- Jim Tonne


(Download)

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Apr 12, 2019 16:09:09   #
napabob Loc: Napa CA
 
Jim Tonne wrote:
Here is a "relative size" image a friend sent me. ( Not humor ! ) Source is
https://xkcd.com/2135/

- Jim Tonne



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Apr 12, 2019 19:50:17   #
jwohlhueter
 
It's my understanding that the stars of our galaxy rotate about its center on roughly the same plane. This is similar to how the planets of the solar system circle the sun. If so, shouldn't the "dounut" of light circling the black hole be rotated about the black hole 90 degrees, thus obscuring the black hole?

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Apr 12, 2019 20:13:20   #
dwermske
 
jwohlhueter wrote:
It's my understanding that the stars of our galaxy rotate about its center on roughly the same plane. This is similar to how the planets of the solar system circle the sun. If so, shouldn't the "dounut" of light circling the black hole be rotated about the black hole 90 degrees, thus obscuring the black hole?


That would depend on where you are viewing the the black-hole from. The edge or the front. For example you look at a plate from its edge, you might seen nothing but a line but from the front you might see a round disk. Since nobody really knows exactly what a black-hole really is, can anyone definitively say if a black-hole is a singularity, or a hole in space-time, or a super heavy ball of matter? Thats why these things are so fascinating. There is a great deal of speculation but NO real proof, yet.

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Apr 13, 2019 01:30:50   #
jwohlhueter
 
We are viewing the center of the galaxy from the edge.

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Apr 13, 2019 04:31:01   #
nekon Loc: Carterton, New Zealand
 
Eight telescopes were necessary to focus this image, as the distance was too great for a single telescope.

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Apr 13, 2019 12:54:24   #
Sunnely Loc: Wisconsin
 
nekon wrote:
You just need to understand basic quantum physics - then it all comes clear!


Exactly! Here's a short video on how scientists did it with the help of the Event Horizon Telescope (EHT).

https://www.youtube.com/watch?v=omz77qrDjsU

Take-home: It proves that Einstein was right, AGAIN.

But let's not forget Stephen Hawkings, the father of black hole.

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Apr 14, 2019 20:03:22   #
jwohlhueter
 
This youtube video explains the black hole image: https://www.youtube.com/watch?v=zUyH3XhpLTo

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Apr 14, 2019 21:01:14   #
GregWCIL Loc: Illinois
 
Dan Thornton wrote:
When you bring the black hole into focus, it becomes much easier to understand.


Best funny of the week. Thank you Dan.

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