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The black hole pictures are awesome


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#1 golden_valley

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Posted 10 April 2019 - 10:27 AM

See the article:Posted Image

#2 andydp

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Posted 10 April 2019 - 11:17 AM

Actually enjoyed reading this article. I managed to get a slight grasp of the subject.
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If you've got public schools paid for by taxpayers, you're in a socialist nation. If you have public roads paid for by taxpayers, socialist nation. If you've got public defense (police, fire, military, coast guard) paid for by tax dollars, socialist nation. If you're in a nation that has nationalized or localized delivery of services that are not paid for by users alone, you're in a socialist nation- the only question is how socialist. As I see it, we have the military pay to protecting the shipping lanes for our fuel needs which makes up very socialist. In a capitalist nation, the people supplying the oil would pay for their own defense force.


DC Coronata

#3 AnBr

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Posted 10 April 2019 - 06:05 PM

Posted Image


Pray for Trump: Psalm 109:8

"Science is more than a body of knowledge; it is a way of thinking. I have a foreboding of an America in my children's or grandchildren's time - when the United States is a service and information economy; when nearly all the key manufacturing industries have slipped away to other countries; when awesome technological powers arc in the hands of a very few, and no one representing the public interest can even grasp the issues; when the people have lost the ability to set their own agendas or knowledgeably question those in authority; when, clutching our crystals and nervously consulting our horoscopes, our critical faculties in decline, unable to distinguish between what feels good and what's true, we slide, almost without noticing, back into superstition and darkness.

— Carl Sagan
The Demon-Haunted World: Science as a Candle in the Dark
1995


“As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron.”

— H.L. Mencken
On Politics: A Carnival of Buncombe


“The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.”

— Franklin Delano Roosevelt
Second inaugural address January, 1937

#4 golden_valley

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Posted 10 April 2019 - 06:53 PM

Love to see the above for a variety of reasons...a visual representation of data and the identity of the developer. What does a petabyte look like? Now I know (sort of). My image of scientists is crewcut guys wearing birth control glasses in short sleeved white shirts with striped ties. This woman smashes that image. I hope high school students everywhere are seeing this.

#5 baw1064

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Posted 10 April 2019 - 07:08 PM

 golden_valley, on 10 April 2019 - 06:53 PM, said:

Love to see the above for a variety of reasons...a visual representation of data and the identity of the developer. What does a petabyte look like? Now I know (sort of). My image of scientists is crewcut guys wearing birth control glasses in short sleeved white shirts with striped ties. This woman smashes that image. I hope high school students everywhere are seeing this.

Yes, yes, yes! I majored in physics in college (my PhD is in applied physics). The ridiculously skewed gender ratio always really bothered me, so I applaud Ms. Bouman on several levels.

To me, though, the middle photograph is the most meaningful. It's one thing to logically think through all the math and analysis, and logically analyze what you expect to find. But the moment depicted, of being overcome by emotion of the beauty you've revealed, is hard to describe. I've had moments like that, albeit not as noteworthy as this one. It's just something really special.
“Unless someone like you cares a whole awful lot, Nothing is going to get better. It's not.” --Dr. Seuss

#6 andydp

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Posted 10 April 2019 - 07:28 PM

If I read the article right, Einstein tried to “disprove” his idea that black holes existed.

So who’s theory was just proven ? Does it “look” like the math assumed it would look like ?
Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.

Rev Martin Luther King Jr.


Obamacare took my guns away and put me in a FEMA reeducation camp.

Anonymous

If you've got public schools paid for by taxpayers, you're in a socialist nation. If you have public roads paid for by taxpayers, socialist nation. If you've got public defense (police, fire, military, coast guard) paid for by tax dollars, socialist nation. If you're in a nation that has nationalized or localized delivery of services that are not paid for by users alone, you're in a socialist nation- the only question is how socialist. As I see it, we have the military pay to protecting the shipping lanes for our fuel needs which makes up very socialist. In a capitalist nation, the people supplying the oil would pay for their own defense force.


DC Coronata

#7 D. C. Sessions

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Posted 10 April 2019 - 07:29 PM

For grins I'm taking a 300-level astrodynamics class for non-physics-majors [1] and the professor [2] spent the class period answering questions about black holes, rotation curves, accretion disks, and submillimeter interferometry [3] across the width of the Earth. Also possible reasons why one side of the disk is brighter than the other. Also, read XKCD today for context:

Posted Image

As for Ms. Bouman [4], no surprise. I spend my days with a very lively group of faculty who are similarly enthusiastic and show it. It says something when your Statistical Mechanics professor literally squees when showing a room full of grad students a sneaky way to derive the pressure equation for a relativistic fermion gas.

[1] Just got the review back, BTW -- I completed the NMT requirements for a BS/Physics this spring. Not graduating yet because I have one more class remaining for the math major, but otherwise both. Now I'm semiofficially a grad student at 67. Fun times!
[2] Astrophysicist.
[3] Geek out on this: http://www.mro.nmt.edu/about-mro/
[4] Dr. Bouman? Reporters are amazingly and disgustingly reluctant to give women proper earned titles.
The way a lot of catastrophes happen is that X doesn't occur because there are safeguards in place, therefore people assume X isn't a worry and they remove the safeguards. Then X happens.
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These days, "libertarian" is just a euphemism for a Nazi who's afraid to commit.
"If you're not outraged, you're not paying attention." -- Heather Heyer
"I'd rather have my child, but by golly, if I gotta give her up, we're gonna make it count." -- Her mother
"Your purpose, then, plainly stated, is that you will destroy the Government, unless you be allowed to construe and enforce the Constitution as you please, on all points in dispute between you and us. You will rule or ruin in all events." -- some RINO

#8 D. C. Sessions

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Posted 10 April 2019 - 07:36 PM

 andydp, on 10 April 2019 - 07:28 PM, said:

If I read the article right, Einstein tried to “disprove” his idea that black holes existed.

So who’s theory was just proven ? Does it “look” like the math assumed it would look like ?

Of course he did. It's really expected, after all, despite the fact that people rarely succeed. Outside of math, it's really not possible to prove something true, so we "prove" (test) by trying to falsify the hypothesis. Those that survive despite all attempts are accepted. Quite Darwinian.

As for proof, well, as I read it this was more impressive for the methods used than for the fairly orthodox results. The real challenge is going to be getting a good look at the supermassive black hole in Saggitarius A*, our galaxies very own. We'll be looking at it edge on through a very long path full of dust and gas, instead of practically straight down the axis of the galaxy like this one.

That said, the accretion disk appears to be about what would be predicted from the mass derived from the motions of the stars near the center so a whole bunch of established theories survived a direct collision with experimental data. There was much rejoicing.
The way a lot of catastrophes happen is that X doesn't occur because there are safeguards in place, therefore people assume X isn't a worry and they remove the safeguards. Then X happens.
— Nate Silver
"Robots aren't the problem. Capitalism is." -- Last words of Stephen Hawking.
These days, "libertarian" is just a euphemism for a Nazi who's afraid to commit.
"If you're not outraged, you're not paying attention." -- Heather Heyer
"I'd rather have my child, but by golly, if I gotta give her up, we're gonna make it count." -- Her mother
"Your purpose, then, plainly stated, is that you will destroy the Government, unless you be allowed to construe and enforce the Constitution as you please, on all points in dispute between you and us. You will rule or ruin in all events." -- some RINO

#9 baw1064

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Posted 10 April 2019 - 07:47 PM

 D. C. Sessions, on 10 April 2019 - 07:29 PM, said:

[4] Dr. Bouman? Reporters are amazingly and disgustingly reluctant to give women proper earned titles.

Well (since I'm feeling a little chagrined about doing the same thing) it is true that in the TED talk, she introduced herself as a grad student--meaning she hadn't finished her PhD at that time. That was a couple years ago, so in all probability she is indeed Dr. Bouman now.

Personally, I never introduce myself as Dr. baw1064, though.
“Unless someone like you cares a whole awful lot, Nothing is going to get better. It's not.” --Dr. Seuss

#10 D. C. Sessions

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Posted 10 April 2019 - 08:06 PM

 baw1064, on 10 April 2019 - 07:47 PM, said:

Personally, I never introduce myself as Dr. baw1064, though.

I should think not. News coverage is another matter though.
The way a lot of catastrophes happen is that X doesn't occur because there are safeguards in place, therefore people assume X isn't a worry and they remove the safeguards. Then X happens.
— Nate Silver
"Robots aren't the problem. Capitalism is." -- Last words of Stephen Hawking.
These days, "libertarian" is just a euphemism for a Nazi who's afraid to commit.
"If you're not outraged, you're not paying attention." -- Heather Heyer
"I'd rather have my child, but by golly, if I gotta give her up, we're gonna make it count." -- Her mother
"Your purpose, then, plainly stated, is that you will destroy the Government, unless you be allowed to construe and enforce the Constitution as you please, on all points in dispute between you and us. You will rule or ruin in all events." -- some RINO

#11 AnBr

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Posted 10 April 2019 - 09:30 PM

I love the child like glee grin on her face in the 2nd image. If it had been me I would have been giggling, too.
Pray for Trump: Psalm 109:8

"Science is more than a body of knowledge; it is a way of thinking. I have a foreboding of an America in my children's or grandchildren's time - when the United States is a service and information economy; when nearly all the key manufacturing industries have slipped away to other countries; when awesome technological powers arc in the hands of a very few, and no one representing the public interest can even grasp the issues; when the people have lost the ability to set their own agendas or knowledgeably question those in authority; when, clutching our crystals and nervously consulting our horoscopes, our critical faculties in decline, unable to distinguish between what feels good and what's true, we slide, almost without noticing, back into superstition and darkness.

— Carl Sagan
The Demon-Haunted World: Science as a Candle in the Dark
1995


“As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron.”

— H.L. Mencken
On Politics: A Carnival of Buncombe


“The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.”

— Franklin Delano Roosevelt
Second inaugural address January, 1937

#12 D. C. Sessions

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Posted 11 April 2019 - 07:40 AM

Followup: Come September, Dr. Bouman will be taking an appointment as an assistant professor at CalTech.
The way a lot of catastrophes happen is that X doesn't occur because there are safeguards in place, therefore people assume X isn't a worry and they remove the safeguards. Then X happens.
— Nate Silver
"Robots aren't the problem. Capitalism is." -- Last words of Stephen Hawking.
These days, "libertarian" is just a euphemism for a Nazi who's afraid to commit.
"If you're not outraged, you're not paying attention." -- Heather Heyer
"I'd rather have my child, but by golly, if I gotta give her up, we're gonna make it count." -- Her mother
"Your purpose, then, plainly stated, is that you will destroy the Government, unless you be allowed to construe and enforce the Constitution as you please, on all points in dispute between you and us. You will rule or ruin in all events." -- some RINO

#13 Practical Girl

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Posted 11 April 2019 - 08:36 AM

Wonderful news for her. Lucky students, too. She'll inspire countless students. I only wish my mother were still on Earth, She would have had a HUGE belly laugh at one snippet: "...the phenomenon that is a fraction". Yes- she always told me- it's only math. No need to fear it.
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“A republic,” Franklin said, “if you can keep it.”


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#14 LFC

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Posted 11 April 2019 - 09:37 AM

From the TED talk:

Quote

My name is Katie Bouman and I'm a PhD student at MIT. I do research in a computer science lab that works on making computers see through images and video. Although I'm not an astronomer today I'd like to show you how I've been able to contribute to this exciting project.

She's going to end up as a role model to a lot of girls (and a heartthrob to a lot of guys) in the computer science field. Brilliant, already accomplished at a young age, and somebody who clearly shows enthusiasm for what they do. This woman is going places. I hope she does more public talks. She's very good at it and that ability along with her enthusiasm is what will make her such a great role model instead of just a brilliant scientist hidden in some dusty old office.
" 'Individual conscience' means that women only get contraceptives if their employers, their physicians, their pharmacists, their husbands and/or fathers, pastors, and possibly their mayors, Governors, State Secretaries of Health, Congressmen, Senators, and President all agree that in that particular case they're justifiable." --D.C. Sessions

"That's the problem with being implacable foes - no one has any incentive to treat you as anything more than an obstacle to be overcome."

"The 'Road to Serfdom' is really all right turns." --Progressive Whisperer

""The GOP ... where every accusation is also a confession." --Progressive Whisperer

#15 AnBr

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Posted 11 April 2019 - 10:39 AM

Who says women cannot make it in STEM?
Pray for Trump: Psalm 109:8

"Science is more than a body of knowledge; it is a way of thinking. I have a foreboding of an America in my children's or grandchildren's time - when the United States is a service and information economy; when nearly all the key manufacturing industries have slipped away to other countries; when awesome technological powers arc in the hands of a very few, and no one representing the public interest can even grasp the issues; when the people have lost the ability to set their own agendas or knowledgeably question those in authority; when, clutching our crystals and nervously consulting our horoscopes, our critical faculties in decline, unable to distinguish between what feels good and what's true, we slide, almost without noticing, back into superstition and darkness.

— Carl Sagan
The Demon-Haunted World: Science as a Candle in the Dark
1995


“As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron.”

— H.L. Mencken
On Politics: A Carnival of Buncombe


“The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.”

— Franklin Delano Roosevelt
Second inaugural address January, 1937

#16 LFC

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Posted 11 April 2019 - 12:37 PM

View PostAnBr, on 11 April 2019 - 10:39 AM, said:

Who says women cannot make it in STEM?

Tucker Carlson maybe?
" 'Individual conscience' means that women only get contraceptives if their employers, their physicians, their pharmacists, their husbands and/or fathers, pastors, and possibly their mayors, Governors, State Secretaries of Health, Congressmen, Senators, and President all agree that in that particular case they're justifiable." --D.C. Sessions

"That's the problem with being implacable foes - no one has any incentive to treat you as anything more than an obstacle to be overcome."

"The 'Road to Serfdom' is really all right turns." --Progressive Whisperer

""The GOP ... where every accusation is also a confession." --Progressive Whisperer

#17 D. C. Sessions

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Posted 11 April 2019 - 05:52 PM

View PostLFC, on 11 April 2019 - 12:37 PM, said:

Tucker Carlson maybe?

I've been meaning to ask -- what is his doctorate in?
The way a lot of catastrophes happen is that X doesn't occur because there are safeguards in place, therefore people assume X isn't a worry and they remove the safeguards. Then X happens.
— Nate Silver
"Robots aren't the problem. Capitalism is." -- Last words of Stephen Hawking.
These days, "libertarian" is just a euphemism for a Nazi who's afraid to commit.
"If you're not outraged, you're not paying attention." -- Heather Heyer
"I'd rather have my child, but by golly, if I gotta give her up, we're gonna make it count." -- Her mother
"Your purpose, then, plainly stated, is that you will destroy the Government, unless you be allowed to construe and enforce the Constitution as you please, on all points in dispute between you and us. You will rule or ruin in all events." -- some RINO

#18 baw1064

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Posted 11 April 2019 - 06:58 PM

View PostD. C. Sessions, on 11 April 2019 - 05:52 PM, said:

I've been meaning to ask -- what is his doctorate in?

He has a black hole inside his head, from which not even logical thought can escape.
“Unless someone like you cares a whole awful lot, Nothing is going to get better. It's not.” --Dr. Seuss

#19 baw1064

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Posted 11 April 2019 - 07:39 PM

View PostD. C. Sessions, on 11 April 2019 - 07:40 AM, said:

Followup: Come September, Dr. Bouman will be taking an appointment as an assistant professor at CalTech.

A richly deserved congratulations!

An interesting coincidence (or maybe not). Kip Thorne is probably the most famous figure in gravitation/general relativity, now that Steven Hawking has left us. He's on the faculty of Caltech, and won a Nobel prize a couple of years ago for gravitational wave detection. He was also the scientific consultant to the movie Interstellar, the source for the artistic depiction of the black hole with which Katie Bouman opened her TED talk.
“Unless someone like you cares a whole awful lot, Nothing is going to get better. It's not.” --Dr. Seuss

#20 andydp

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Posted 12 April 2019 - 08:12 AM

View PostD. C. Sessions, on 10 April 2019 - 07:36 PM, said:

Of course he did. It's really expected, after all, despite the fact that people rarely succeed. Outside of math, it's really not possible to prove something true, so we "prove" (test) by trying to falsify the hypothesis. Those that survive despite all attempts are accepted. Quite Darwinian.

As for proof, well, as I read it this was more impressive for the methods used than for the fairly orthodox results. The real challenge is going to be getting a good look at the supermassive black hole in Saggitarius A*, our galaxies very own. We'll be looking at it edge on through a very long path full of dust and gas, instead of practically straight down the axis of the galaxy like this one.

That said, the accretion disk appears to be about what would be predicted from the mass derived from the motions of the stars near the center so a whole bunch of established theories survived a direct collision with experimental data. There was much rejoicing.

Being the type of person who is sometimes stymied by my checkbook, I am fascinated at the amazing mathematical work done. I was reading Eugene Robinson's column and he mentioned Carl Schwarzschild's math (Using Einstein's Relativity Theory) that predicted the existence of black holes.

Major kudos to Dr Bouman for coming up with the algorithm that made all this possible. I'm certain she will go very far and be quite the inspiration to a new generation of young people.

Eugene Robinson's Column:

https://www.timesuni...us-13760845.php
Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.

Rev Martin Luther King Jr.


Obamacare took my guns away and put me in a FEMA reeducation camp.

Anonymous

If you've got public schools paid for by taxpayers, you're in a socialist nation. If you have public roads paid for by taxpayers, socialist nation. If you've got public defense (police, fire, military, coast guard) paid for by tax dollars, socialist nation. If you're in a nation that has nationalized or localized delivery of services that are not paid for by users alone, you're in a socialist nation- the only question is how socialist. As I see it, we have the military pay to protecting the shipping lanes for our fuel needs which makes up very socialist. In a capitalist nation, the people supplying the oil would pay for their own defense force.


DC Coronata





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