richard09
Posts : 4250
Join date : 2013-01-16
 | | Subject: Scientists Are Turning Earth Into a Telescope to See a Black Hole Thu Mar 16, 2017 8:22 am | |
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NoCoPilot
Posts : 20276
Join date : 2013-01-16
Age : 69
Location : Seattle
| | Subject: Re: Scientists Are Turning Earth Into a Telescope to See a Black Hole Thu Mar 16, 2017 9:16 am | |
| - Quote :
- Black holes may be one of the universe’s most bizarre phenomena. They’re literally divide-by-zeros in the sky
Um, no they're not. Literally. - Quote :
- “This is going to be a seminal observation in the history of mankind,” Grant Tremblay, observational astrophysicist from Yale University, told Gizmodo. “This image [of Sagittarius A*], whatever it shows, will be in the top ten images ever taken.”
Scientists in search of funding aren't known to exaggerate, are they??? Black holes are considered "black" for a reason. You can see their effects, but never the black holes themselves. "Look, a blank spot on the negative!" Woo! Ahhh! |
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richard09
Posts : 4250
Join date : 2013-01-16
| | Subject: Re: Scientists Are Turning Earth Into a Telescope to See a Black Hole Thu Mar 16, 2017 1:46 pm | |
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NoCoPilot
Posts : 20276
Join date : 2013-01-16
Age : 69
Location : Seattle
| | Subject: Re: Scientists Are Turning Earth Into a Telescope to See a Black Hole Thu Mar 16, 2017 1:49 pm | |
| (ARTIST'S RENDERING)  |
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NoCoPilot
Posts : 20276
Join date : 2013-01-16
Age : 69
Location : Seattle
| | Subject: Re: Scientists Are Turning Earth Into a Telescope to See a Black Hole Fri Mar 17, 2017 9:33 am | |
| CAUTION: NOT TO SCALE  |
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NoCoPilot
Posts : 20276
Join date : 2013-01-16
Age : 69
Location : Seattle
| | Subject: Re: Scientists Are Turning Earth Into a Telescope to See a Black Hole Sat Jun 05, 2021 6:45 pm | |
| Just watched a Netflix special ("The Edge of All We Know") on the first imaging of a black hole, as Richard alerted us to in 2017. The program goes through the whole process of turning telescopes all over the world to the same spot in the sky -- the center of Messier 87 -- for the same three days and then correlating petabytes of data using two supercomputers. The end result of two years of calculating and cross-correlating was this image:  It looks a lot more unimpressive than the effort behind it. The effort by 250 scientists worldwide was led by three lead scientists, but unfortunately one of them, Stephen Hawking, didn't live to see the result. The result was a calculation that the "soft hair" -- the surface of the event horizon -- preserves the information inside the black hole. All of the math, and all of the physics, and all of the conceptualization was way over my head, and the documentary producers resorted to a lot of cheesy cartoon graphics and cutaways to leaves floating in the river and floaty new age music. Obviously no mortal is going to understand any of this. https://www.nationalgeographic.com/science/article/first-picture-black-hole-revealed-m87-event-horizon-telescope-astrophysicsAt one point in the show the scientists were playing with a big tank of water with a whirlpool in the middle of it, watching how smaller whirlpools were absorbed and how waves going end-to-end in the pool were bent around the whirlpool. Made me wonder if a black hole could simply be gravitational matter that's spinning faster than the speed of light? |
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