How did they actually take this picture? (Very Long Baseline Interferometry)
소스 코드
- 게시일 2024. 04. 17.
- This is an image of the supermassive black hole, Sagittarius A*, at the center of our Milky Way galaxy.
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Image of Sgr A* from EHT collaboration
Event Horizon Telescope collaboration: ve42.co/EHT
Animations from The Relativistic Astrophysics group, Institute for Theoretical Physics, Goethe-Universität Frankfurt. Massive thanks to Prof. Luciano Rezzolla, Dr Christian Fromm and Dr Alejandro Cruz-Osorio.
A huge thanks to Prof. Peter Tuthill and Dr Manisha Caleb for feedback on earlier versions of this video and helping explain VLBI.
Great video by Thatcher Chamberlin about VLBI here - • Very Long Baseline Int...
Animations and simulations with English text:
L. R. Weih & L. Rezzolla (Goethe University Frankfurt)
• Accretion flow onto a ...
Video of stars going around Sgr A* from European Southern Observatory
www.eso.org/public/videos/eso...
Video zooming into the center of our galaxy from European Southern Observatory
• Zooming into the black...
Video of observation of M87 courtesy of:
C. M. Fromm, Y. Mizuno & L. Rezzolla (Goethe University Frankfurt)
• Using VLBI to create a...
Video of observation of SgrA* courtesy of
C. M. Fromm, Y. Mizuno & L. Rezzolla (Goethe University Frankfurt)
Z. Younsi (University College London)
• Using VLBI to create a...
Video of telescopes in the array 2017:
C. M. Fromm & L. Rezzolla (Goethe University Frankfurt)
• Telescopes in the Even...
Animations and simulations (no text):
L. R. Weih & L. Rezzolla (Goethe University Frankfurt)
• Accretion flow onto a ...
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Written by Derek Muller
Animation by Ivy Tello, Mike Radjabov, Maria Raykova
Thumbnail by Ignat Berbeci
Filmed by Petr Lebedev
![[한화 vs 두산] 4/11 경기 I 2024 신한 SOL뱅크 KBO 리그 I 하이라이트 I TVING](http://i.ytimg.com/vi/AoJj4NXAjrc/mqdefault.jpg)
This is hands down the best explanation of a black hole I've ever heard.
You mean b-hole
Idk if you’ve seen kurzgesagts black hole videos but they’re very good!
Watch PBS Spacetime
I fking agree
Hi from Amravati🖐
The craziest thing to me is that these images just confirm our theories. We had visuals of black holes purely based on the Maths. A random guy on the street could have a decent image of a black hole because a movie did the effort to represent it correctly (minus the lighter and darker parts). And only a few years later, we manage to take a picture which just happens to be exactly what we expected.
That's what scares me, considering that these are composite images with some degree of subjectivity.
Movie being Interstellar !?
@@CS--SambitKar yeah, absolutely awesome movie
@@rodgunn2621 all versions of the photo showed the same general shape just the exact position of the brighter part of the "ring" was a bit different
What simulation theory? Does it matter? We’re living to us this is life. We are alive
As someone working with radio interferometry for over 10 years, I've never seen an explanation of it's working principle as clear and easy to follow as presented here, great work!
Cool
Welcome to the Veritasium University, where black holes are feeding on hungry minds. ;)
Cool
@@BillAnt
Or hungry minds feeding on black holes 😎
Cool
10:40 is impressive. Most people never see a visualization of the actual data processing that goes on.
Yeah
10:31 the way the black hole's picture appears from just black and white lines, is truly amazing.. hats off to the people who took this amazing image of our closest supermassive black hole
You'd be surprised what can appear from just black and white lines. Ever seen a JPEG? It is in fact three long tables of numbers, representing the brightness of pre-determined patterns of black and white lines. Adding them up with the black and white line images each weighted accordingly produces three slightly different images. Color one red, one green, and one blue, and after that overlapping them produces the original image. Now, as your brain doesn't care about very sharp and tiny changes as much as it does other changes, you can just drop the smallest black and white lines to achieve compression, at the expense of some data loss.
This is roughly how it works, though in reality it's a bit more complex and involves macroblocks and stuff. Lots can come out of black and white lines.
In it's core, it's a Fourier transformation
Yeah, it's the physical hardware that's impressive about this, the final step was basically just data crunching. We've known how to do the software side of this for decades.
Impressive visually, but very simple computer-science-wise.
I recommend looking into the Fourier transform and its applications, your mind won't stop being blown.
The actual image taken by the telescope was 3 x 2 pixels. The image the 'scientists' (I use the term loosely) have presented us with is a cherry picked image taken from a set of tens of thousands of images which were output when the 2 x 3 pixel image was entered into the program.
This is not science by any stretch of the imagination. Main stream cosmology is effectively a religion at this point in time.
@@streuthmonkey1 There was no image taken by the telescopes, they took light phase and timestamp data. That data was used to construct an image after the fact. The number of pixels in that final image can be however many or as few as you want, and it doesn't change the quality of the input data.
What exactly are you referring to?
The continuous zoom-in from a relatively wide view of the night sky all the way to the stars surrounding the black hole really puts things into perspective.
Gotta love the title tho
Absolutely blown away how, you can explain something so mind blowing in a very clear and understandable way. I feel lost in some parts of all of your videos and then immediately met with understanding. Just when I think it’s going over my head, you bring it right back. Thank you for all your work and for beautifully sharing/communicating it with us.
in a very clear and understandable way? im so stupid then....
@ordinary name you have an excellent point. The materials my kids come home with now, seem confusing and convoluted.
@@sansanxaverius3436 It's ok, it just means you excell at different things, like a janitor or a plumber.
I don’t know what a ark second or minute is
Fun fact, the name “Schwarzschild Radius” is an incredible coincidence. Obviously it’s named after a physicist with the surname Schwarzschild, but the word itself means “Black Shield”, an almost literal description of an event horizon.
"Black Shield" sounds oddly racist
@@hunter133officialno it doesn’t…?
@@hunter133officialjust you pal
Interesting example of nominative determinism...
I've gotta hand it to you-- this was one of the most easily understandable explanations of why we see what we see in these pictures I've ever experienced. Absolutely outstanding work of science communication that makes incredibly complex material understandable without dumbing anything down.
It is dumbed down - that's why you can understand it.
Yep. Came here for a new "picture", left with better understanding, and actually a way to explain it to friends and family easier now.
@@andoletube it's good that it's dumbed down. not everyone can become a rocket/astro physicist. that's the point of science communication.
@@elck3 I agree, it must be dumbed down otherwise it's useless. I was just saying it shouldn't be stated that it isn't dumbed down, because it conceals the fact that it's extremely complicated and very much unresolved.
@@andoletube Yea, ofc it's dumbed down. I think what the original commenter meant was that Veritasium goes more in-depth conceptually than many other YTbers and pop-sci journalists.
When I was a kid I was OBSESSED with space and especially black holes! I remember my junior high science teacher saying they were only "theoretically there" but probably were, and that bummed me out for some reason. He said though we likely wouldn't know in my lifetime if they were surely there let alone what they look like. Yet here we are and I'm absolutely blown away!! I love being alive during a time when more and more amazing steps are being taken in space exploration. I'm 30 now and I can only imagine what things will be like in another 30 years!
Same here, I'm also 30 and I was also obsessed with black holes since 4th grade and always read the same thing and was so disheartened. I literally cried when the M83 image came out and I first saw it.
Hello 👋
I have to say that your science teacher was somewhat behind the times. Pretty strong evidence of the existence of black holes goes back to the late 1990s... see for example the famous 1974 bet on Cygnus X-1 between Kip Thorne and Stephen Hawking, conceded by Hawking in 1990 on the basis of evidence available then.
I’m still obsessed with space 😂😂
Totally feeling your excitement bro. I'm 45, and have been a space cadet since I was 5 years old. The same theory that predicted the theoretical existence of black holes (Einstein's General Theory of Relativity 1905) also predicts the theoretical existence of white holes. Basically the opposite of what a black hole is. I recommend looking them up if you haven't already. Very interesting insights from very profound astrophysicists on the topic and reasons why we haven't seen any yet, if the actually do exist.
The difference between the two pictures are bigger than you could imagine. Sagittarius A*’s radius is about the size of Mercury’s orbit, while M87*’s is well beyond the orbit of Pluto. Insane, just how big the universe truly is.
Also the dreadful distances between things is nuts. Takes light 8m to get to earth too, then we have things that are thousands of light years away.
No. It's all within the Dome as God created, it's not far at all.
Phoenix A: lol, quite possibly lmao
@@olle12
Lol FLAT EARTHER ALERT
@@chosentonessournotes Prove me wrong, the scientists your citing, can't even measure the speed of light, so all the sh*t they are saying could be wrong.
Amazingly well explained! I can't imagine an "easier" way of presenting such a complicated and non-intuitive phenomenon.
As a radio astronomer myself, I've got to say that your explanation of interferometry was amazing. Might point some of my students towards it!
I think it's the first explanation I've understood.
Ma'am, it was so nice to hear from you. I would also love to be like you one day, I love spacetime stuff.
Try pointing two students at the same time from different locations, to see what matches up in their homework. If you do this enough you can probably get a sense of what the video is actually teaching well.
Quran 56 - 75, 76 This is the verse which says that the place where the stars fall and. , 77-8 The part that says when the stars are extinguished) This part needs to be defined interprited(For those who mock Quran 109 -6 to you is your religion,and to me,,my religion)
I've gotta say that your "what does a black hole look like?" explanation is by far the best. I re-watch that video with some frequency while trying to explain black holes. They're basically a spherical "fun-house" where light does all kinds of wacky things. Even the paper written by the visual effects developers for Interstellar leaves a lot on the table in explaining what these things would look like and you do such a great job.
In the singularity the three dimensions are flat as they would be on a paper sheet
SCIENTISTS ARE SURPRISED THAT THE MILKY WAY RUNS WITH UBUNTU AND NOT WITH ARCH !
Hey! Did you know God is three in one!? The Father, The Son, and The Holy Spirit! Bless them!
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Have a blessed day, everyone!! ❤
It's garbage mate ... unadulterated crap
@@allanroser1070 what is
I really love that veritasium doesn't talk down to me. It's simplified, but so much more information than other learning sources ever give me.
It's so fascinating to see concepts of Wave Superposition, Hugen's Principles, Young's Double slit experiment and Reflecting Telescopes I am currently studying in high school being applied to get images of a real black hole..
The double slit experiment is one of the most simple, yet also florid experiments, very intriguing!
the double slit experiment never considered phase shift
I'm not even gonna pretend otherwise, the arts and crafts really helped me get a true grasp of what you were describing. Perfectly demonstrated
Yeah me too
Same. Definitely helped me to understand the physics.
Same!!
Qawareta sail Lu kune kuse
such an impressive breakdown, absolutely incredible!!!
Only 8 likes?
Strange PC view change
Ok
How are you 52 years old? Isn't KRplus significantly younger than that?
Remove double ads and unskippable ads
This beyond brilliant and genius. The explanation and the method used to develop the images. I've never seen anything like this before. Amazing work on all ends here.
*universe is so crazy to grasp, at one time you get the feeling of existential crisis on the another instance you want to fly in the space and see what all is happening in the space, sometimes you feel if you had the superpower to go back in time that would have been great...*
Why is this so on point? Nooooooo😭😭💔
Read star maker by olaf stapledon, you will thank me later
@@michi-strichi what's it about?
You know what's crazy? We are the universe itself
The explanation and practical demonstration of the way the "image of a black hole" is formed, starting at 10:41, is really marvelous! Great job, Veritasium! I really love that very hands-on prop he used.
Yeah, it's pretty genius to make an actual model in such a way. Great way to teach it to kids.
@@birbdad1842 I'm an adult and couldn't grasp it until this brilliant physical demonstration
It's just clips from the previous video on the topic though, right?
@@dickurkel6910 yeah, more like 80% of the previous video
The animation of combining the interference patterns into the image of the black hole just blew my mind 🤯
Yes and its only 10 sec starting at 10:30
JESUS KNOCKS ON YOUR HEART AND LONGS FOR YOU TO ANSWER! HE DOESN'T WANT TO SEE ANYONE PERISH INTO HELL. GOD LOVES YOU SO HE GIVES YOU FREE WILL AND A CHOICE TO ACCEPT HIM OR REJECT HIM. TO LOVE HIM OR TO LOVE SIN/THIS WORLD. CALL UPON JESUS & ASK HIM TO FORGIVE YOUR SINS! SURRENDER YOUR WILL & YOUR LIFE TO HIM & HE WILL GIVE YOU ETERNAL LIFE IN HEAVEN! PICTURE YOUR BEST DAY ON EARTH TIMES A BILLION FOR ETERNITY, THAT'S HEAVEN! NOW PICTURE YOUR WORST DAY ON EARTH TIMES A BILLION FOR ETERNITY, THAT'S HELL! HE WILL GIVE YOU WHAT YOU WANT SO IF YOU REJECT HIM YOU WILL BE SEPARATED FROM HIM & HIS BLESSINGS (LOVE, PEACE, JOY, HOPE, REST, ETC). IN HELL YOU WILL BE ALONE WITHOUT GOD OR PEOPLE... YOU WILL BE HOPELESS, IN DESPAIR & AGONY FOREVER!
GOD'S STANDARD FOR HEAVEN IS PERFECTION AND ONLY JESUS (THE SON OF GOD/GOD IN THE FLESH) LIVED THAT PERFECT LIFE! HE LAID DOWN HIS LIFE & TOOK THE WRATH OF THE FATHER ON THE CROSS FOR YOUR SINS! GOD IS JUST SO HE MUST PUNISH SIN & HE IS HOLY SO NO SIN CAN ENTER HIS KINGDOM OF HEAVEN. IF YOU ARE IN CHRIST ON JUDGEMENT DAY GOD WILL SEE YOU AS HIS PERFECT SON (SINLESS SINCE YOUR SINS ARE COVERED BY JESUS' OFFERING). YOU CAN ALSO CHOOSE TO REJECT JESUS' GIFT/SACRIFICE & PAY FOR YOUR OWN SIN WITH DEATH (HELL) BUT THAT SEEMS PRETTY FOOLISH! GOD SEES & HEARS EVERYTHING YOU HAVE SAID & DONE. YOU WONT WIN AN ARGUMENT WITH HIM & YOU CANT DEFEND ANY OF YOUR SINS TO HIM. YOU'RE NOT A GOOD PERSON, I'M NOT A GOOD PERSON... ONLY GOD IS GOOD! WE'RE ALL GUILTY WITHOUT ACCEPTING JESUS' SACRIFICE FOR OUR SINS!
MUHAMMAD DIDN'T DIE FOR YOUR SINS, BUDDHA DIDN'T DIE FOR YOUR SINS, NO PASTOR/NO PRIEST/NO SAINT/NO ANCESTOR DIED FOR YOUR SINS, MARY DIDN'T, THE POPE DIDN'T EITHER, NO IDOLS OR FALSE gods DIED FOR YOUR SINS, NO MUSICIAN OR CELEBRITY DIED FOR YOUR SINS, NO INFLUENCER OR KRplus STAR DIED FOR YOUR SINS, NO SCIENTIST OR POLITICIAN DIED FOR YOUR SINS, NO ATHLETE OR ACTOR DIED FOR YOUR SINS! STOP IDOLIZING & WORSHIPING THESE PEOPLE!
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Jesus answered, “I am the way and the truth and the life. No one comes to the Father except through me."-John 14:6
"But whosoever shall deny me before men, him will I also deny before my Father which is in heaven."-Matthew 10:33
“For the wages of sin is death (hell), but the gift of God is eternal life in Christ Jesus our Lord”-Romans 6:23
Thank you for putting the ad at the very end. Very kind of you to not put it in the middle of the video. Fantastic job explaining the complicated story. The world needs more educators like you.
What a great explanation of how the event horizon project obtained the black hole image! I have watched the documentary ‘Black Holes: the Edge of All We Know’ more than once, it would have been good to have this description/demonstration of how the multiple telescopes worked.
What a great video, as always. Thank-you Derek/Veritasium for this understandable explanation.
It's important to mention that the "movie" of the stars orbiting our central black hole is time-lapse footage spanning nearly 20 years. I showed this to someone unfamiliar with astronomy and physics and the first thing they said is "the stars move that fast?!" - thinking that it was somehow real time footage.
Thnx for explaining that. I didn't know that either! Still, it's an amazing image and fascinating to know that stars are dancing around like that somewhere in the universe.
Can you elaborate a bit?
@@anshjain8993 Helmut is saying that the footage at 1:50 is greatly sped up and was actually recorded over 20 years of real time
@@AhsanAtaa yeah i was confused which footage he was referring to and also what the friend misunderstood (coz it was kinda obvious), thanks!
Time being relative, would it even feel like 20 years on one of those stars or would it be significantly slowed down? Would experiencing being sucked into a black hole feel like an eternity because of the sheer speed you'll be going at?
Awesome information about supermassive black holes. Makes you wonder how big the galaxy really is. This kind of info inspires me to be my best and this is why I started Mia Luxury Cars.
Wow, Mia Luxury Cars, this is indeed amazing, kudos for this one, i do hope your channel grows even more and what you commented is 100 percent real and true.
Yes, the info is very helpful, now I understand more about black holes. Your channel has many helpful information, too!
now I understand more about black holes. Your channel has many helpful information. Recommended !
Yeah, that's right.. It really makes me curious about those massive black holes.
Wow, so amazing i also never understood black holes this better in class like i do now.
I absolutely love your videos. You have a real talent for explaining very complex systems in such a simple way.
Thanks for that description, it really helped me think about that image. Nicely done!
In 2019 we had our first ever look at a black hole, pretty much confirming Einstein's theory of relativity, made over 100 years ago. And 3 years later, we finally captured the image of our galaxy's centre, which was for the longest time thought to be near impossible due to the many space debris and dust clouds covering it. It's truly fascinating to see how far our technology has improved in just a span of a few years.
The actual image taken by the telescope was 3 x 2 pixels. The image the 'scientists' (I use the term loosely) have presented us with is a cherry picked image taken from a set of tens of thousands of images which were output when the 2 x 3 pixel image was entered into the program.
This is not science by any stretch of the imagination. Main stream cosmology is effectively a religion at this point in time.
Why is Donald Trump pretty and I am not? But why does he only have a wife but I have TWO HANDSOME GIRLFRIENDS who I show off in my masterpiece YT videos? Do you know the answer, dear qleis
@@AxxLAfriku I yearn for the day you give up and quit youtube
2 years later: We can see to the point of the Big Bang.
Hh
I loved the revisit to your old explanation from the M87* image. Still the clearest and most intuitive explanation I've seen, and the one I always mimic when trying to explain it to friends and family members.
I've been watching your videos for over 10 years, since I was about 13 years old.
I'm 24 now, working on my PhD in Astrophysics.
Even with the knowledge and experience I've gained from my education, I still find that your explanations are usually robust, intuitive and very visually appealing.
You're an inspiration Derek.
I will be sure to thank you in the acknowledgements of my thesis when the time comes, because I don't think I'd be where I am without your videos, and the videos from other science communicators.
Derek the GOAT 🐐
That's actually cool to hear bro. I wish you great luck in your thesis!
Good luck with your thesis dude. I am a computer science student about to finish my bachelors myself so I hope you kill it and talk about Veritasium in your thesis.
Thanks for writing this, it’s brilliant to see someone really benefiting from the internet, that was its true purpose. I know millions of people have, we just don’t get to hear testimony of it. Good luck in your thesis and your future career, we have one life and you are spending yours wisely.
Hi, fellow stupid, unintelligent human and neighbor of yours here… just wanted to thank you for going into that field and helping advance science and our understanding of the cosmos. If I could go back and redo my life I would have chosen the same career path. I chose to mess around in school, do drugs, go to concerts, ect. Although I don’t regret my choices and I had a BLAST none of it helped humanity or the advancement of our species. It’s bigger folks like you that do that so I thank you, and Derek. ❤️
This is by far the best explanation of how this actually works that I've seen - thank you. Too many videos on KRplus, from popular channels with big view counts, purport to explain what's really going on but simply don't. The critical thing you said that clarified it, and which is missed by all other videos, is that we're not actually seeing an image of the black holes taken optically. They are not photos in the same way that we can look at a photo of the moon. It's an important point and is glossed over too much in written and visual explanations. Well done on getting it right.
hey man, just wanted to let you know that you're awesome for making these videos, it's been close to a decade of just top notch quality content and we appreciate it
beautifully said
Seeing those interference patterns combine into the image of the black hole might've been one of the most surreal things I have ever experienced in my life. Thank you for this video
RIGHT?
If you are looking at that image in .jpeg format, it was split into similar patterns using Discrete Cosine Transform, and assembled back by your GPU.
@@igornoga5362 Underrated comment; more generally, fourier transforms are super cool!
@@aronsarmasi2368 I love how it the same maths and principles here that is behind stuff like X-ray crystallography, a technique we use to look at very tiny things in great detail.
it blew my mind... somwhow after following physics and cosmology videos for few years now. it still blew my mind that how humans imagined that putting that together will actuall return an image....
As technically impressive as these renderings are, the clip showing those stars zooming around apparently nothing is what blows my mind. I feel like I could watch that for hours and still be fascinated...
Agreed, that was shocking to see. I can't believe we have the technology to image something that far away and through so much intervening matter.
Agreed! That short animation covers the period of many years, so it would take lifetimes to get an hours-long clip.
You can literally see the advancement in technology as the video gets clearer as it plays.
Just so you know, that is all just CGI created to represent what we believe it appears as.
I love that clip. It blows my mind seeing how fast that one star whips around.
First of all, damn, Interstellar did their homework. Second of all, I think 10:29 is one of if not the most impressive parts of the whole video I still can barrelly wrap my head around all of it. Also I was wondering if anyone knows weather or not it's possible to reverse the process show at 10:29 for any image to get a bunch of pictures of the interferrence patterns. Because if so that would be pretty cool.
Interstellar actually lead to 3 scientific papers being published. One of the executive producers was scientist Kip Thorne, a theoretical physicist. It's really fascinating to read about if you're curious. I saw Kip Thorne give a talk back in 2017, I think, about the LIGO experiments that detected gravitational waves, and he talked a bit about the science behind Interstellar. It made me appreciate the movie that much more.
Should be possible yeah. Essentially the image is just a sum of sinusoidal functions, ie. Fourier series. So if you determined the Fourier transform of any image, you can get its frequency components and from that generate the fringes that can make up the image.
@@victorboesen3837 eh...I don't think that the combination here is just a sum of the images...also, Fourier transform, to my understanding, can only provide analysis following an axis that you set, for example the x axis of the Image, I don't think it could extract the diagonal stripes anyway, might be wrong tho
I once passed Kip Thorne on an opposing escalator back in the 90s at Sea-Tac airport. He was accompanied by two students carrying his luggage. I was in my twenties at the time and reading up on everything in the library and recognized him and I gave off a quiet reaction as they passed downward and myself upward. The two students noticed my reaction and they both looked at me like I was a crazy person.
17:15 massive "ahhhhh" moment when it all clicked
Just a few years ago, when I was in school, we learnt that the centre of our galaxy 'might' contain a black hole and now we have an image of it. The speed of scientific progress is just astonishing.
it kinda was proofen also a few years ago, so before the first black hole was taken a picture of.
We already watched the stars around and came to the conclusion, that there has to be 1 very massheavy thing, that is very dark (under the detection limit earlier data sets), since it makes big stars move a significant part of the speed of light.
It's been said for a long time (even when I was in school and I'm 33 now).
@@Rockyzach88 it bothers me a lot, that some articles are acting like this is ground breaking news. But this was discovered back in 1974. With the use of radio waves and high powered telescopes
Yah it’s been said for so long now I heard Albert Einstein say something abt this to bill gates in 1938 still blows my MiNd
@@aroTheKidd Bill Gates was born in 1955.
The way you describe the 'Earth sized" telescope at 10 minutes was so perfect.
Ew
@@zeo4391 ?
@@meee_5155 Ew
a bot here
if you reply using notifications then your reply is invalid
Such an impressive explanation.
High resolution video and crystal clear audio made watching experience an absolute pleasure!
This is mind bending. Your explanation is so easy to grasp given the complexity of the subject matter. Now I have some level of understanding when I look at the image. Thanks! 😁
Your explanation of the warping of spacetime and how it contorts the image we receive was excellent. Thank you
I agree.
Define spacetime. Space and time are not objects. They are concepts. You can't warp a concept.
Excelent but still nonsense. Black Holes are entirely hupothetical. There is no direct evidence for their existence.
The actual image taken by the telescope was 3 x 2 pixels. The image the 'scientists' (I use the term loosely) have presented us with is a cherry picked image taken from a set of tens of thousands of images which were output when the 2 x 3 pixel image was entered into the program.
This is not science by any stretch of the imagination. Main stream cosmology is effectively a religion at this point in time.
@@DegreesOfThree spacetime is a mathematical model that combines the three dimensions of space with one dimension of time. Thus creating one four-dimensional manifold
John 3:16
New International Version
16 For God so loved(A) the world that he gave(B) his one and only Son,(C) that whoever believes(D) in him shall not perish but have eternal life.(E) 🙏!!
The world needs teachers like him! Watched many videos about Sgr A* imaging and none of them explained it as clearly and simple as he did! I am marking this video as my black hole reference.
The world is too busy watching morons on tik tok.
а... веришь в чёрную дыру? а она что есть??
...как ты узнал что она есть?
Just don't let him teach you about the speed of electricity. If you know, you know...
I cant find the “mark as black hole reference” button. Only Like, Dislike, Watch Later.
100% agree with you 👍
this is an absolutely incredible video. the clarity of everything from the images to the way he communicates is genuinely a skill.
Wow man! Why can't they give you a Noble Prize for explaining extremely complex concepts in the best and easiest way possible.
Great work!
More space please. This was absolutely amazing. Thanks.
When hecker
@@shadowstuff7322 NEW FNAF GAME LEAK!!!1!1!1!!!!!!1111
9)0
If
And perhaps less electricity
black holes are the most fascinating topics in the space genere.
The insane details, information and presentation... this is too good to be true. Thanks Derek, as a school student, it inspires me much more than you can imagine.
INSANITY:
Pseudoscience has a Growth-Spurt right-now cause the Conservatives funneled Money into it to harm LGBT?
Yeah, this is happening: A massive Slander-Campaign against Trans People that Professor Dave Explains and Planarwalk try to oppose, but thats hard.
Please inform yourself and choose the not-hateful side in a giant War on Trans-People, led by a guy who politely requests a re-classification
of an entire Minoritygroup as ‚mentally-ill-by-default’ (!!?!!) and is at War with Professor Dave now.
Exceptional!! Great work, your explanations and demonstrations were so concise. Your goal of putting "broadcast" TV to shame have been realized my friend!
Amazing video as always, you're the best at this Veritasium!
The idea behind one my scientific papers was formed from your video on "How to Understand the Black Hole Image". Honestly, I think the fact you could feed the curiosity of my 12-year-old self a decade ago and still be relevant for my research today is a testament to this channel’s unique value. Thank you Veritasium.
But its a plasmoid not a fake black hole. Gravity model is broken and thats why the make up dark energy and matter to explain why their model is broken. turn your child onto the Electric Universe model!! This is real physics!! Scaleable and repeateable. Real science. Not fake news only in computer simulations science. Start with the Thunderbolts Project and the SAFFIRE Project to see whats up....
It's one thing to be able to understand the nuance of all this. Its mind boggling (to me) that humans collectively were able to figure these mysteries out using logic and observational measurements.
SCIENCE !
Calculations
IKR
How old are black holes?
The ancient people didn't draw black holes on the walls!
@@labbeaj how do you know? Hard to draw something you can't see! Maybe they drew them but they're so accurately drawn that they're just invisible!
I loved the genuinely gifted explanation of light bent around the black hole, followed by the actual picture, a blurry blob. Top effort to take that actual picture of course, but a reminder we've a while to go and so much to see so much more clearly
Thank you for making that video, it’s so much easier to understand the image now!!
It's crazy to thinks something so big in our own galaxy seems so small from our planet's perspective. We are privileged to live in a time where we can witness this beauty of the universe in the palm of our hand.
truth
The technology involved with figuring this stuff out is so cool to me, like how many generations of scientists it takes to get to where we are now…. And then there is my mom “researching” on Facebook thinking she knows better! Haha
I wouldn't say we're that privileged. We are advanced enough to begin understanding the true nature of our universe but too primitive to explore it.
The power of the black hole...in the palm of our hand.
@Mike Studmuffin That's... not how a black hole works.
I remember staring at that updated, swirling "Polarized" black hole image that was released a few months after the famous, blurry one, and trying to wrap my mind around how polarized lenses only take in focused light beams which pointed directly at you, which means the angle information from the image was, by definition, perfectly straight, perfectly direct, and perfectly focused. And yet, that polarized image of a black hole shows deep, beautiful, pronounced swirls of light spiraling a void.
With little knowledge of physics, I just kept staring at it until it finally clicked that the light wasn't from the black hole, it was from the stars behind or around the black hole, and that their light WAS moving in a singular, focused direction - I WAS looking at a perfectly straight line - that's just how severely time and space were bending along that "Straight" path. That was one of the first times I felt like I could finally see and visualize relativity and that fabric of Spacetime I've heard so much about.
This picture of said 'black hole' is a crock. When it was first claimed to have been a black hole by the woman said to have discovered it, I already had the same photo in my records from TEN years prier. I had filed it as 'the claim then' was - a photo of the planet Niburu which was claimed to be a Red Dwalph that was on it's way to circle our Sun - I trust perole like youself will not be fooled and will instead work to prove it to be what it is and that's NOT a black hole
Solid comment. Think a lot of people probably feel this way. I know nothing of physics so trying to find some form of line of understanding is sometimes hard when it comes to stuff like this.
I find extremely fascinating how such a deep understanding of physics and relativistic theories doesn’t make your comment sound any less gay. For instance, if I had witnessed your thorough yet brief explanation during a live conference, at the end I definitely would have farted loudly. All the secrets of the Universe don’t mean much when you carry around a tiny penis.
Just a note: all light you see is pointing directly at you or you wouldn’t be able to see it! Polarization is the direction light is oscillating (vertical, horizontal, or anything in between) which is perpendicular to the direction of motion!
@@d.mort. Yep.
Thousands of videos but nobody could do this job as well as you did!! Thank you! 💞
I never gave it much thought when I read about an optical image of a blackhole, but this explanation made me severely aware of the awesome work that went behind the scenes to achive those results.
It’s very difficult to see your own b-hole
"behind the scenes" -- I see what you did there!
Such complexity and intricacy, how can there not be an intelligent designer-creator? 💫
Well, it is no "optical" image, it is radio telescope data visualization - even cooler than just pointing an optical telescope at some point it the sky. (I ever wondered how they could get this resolution, now I have an idea of how it works - simple in theory, hard to achieve in practice.)
@@c.augustin Seems like just having clocks that accurate sync'd around the planet (10^-15 second accuracy) must have been a technical limit. If that clock is off by just one order of magnitude the resolution would also drop.
The explanation of the "Interstellar" black hole was really helpful. I've always wondered how the movie depicted the black hole that way. I've always thought it was just creative license
They actually put a ton of real work into the field to get that image. There is a documentary or something I saw a while back. I'm sure you could find it if you wanted to. The reason it's so accurate is because it wasn't artistic license and that's awesome!
It was from a simulation and just happend to be looking awesome.
The consulting physicist for the film was able to publish more than one paper on that simulation
@@christophermcallister3033 He's none other than Kip Thorne
It being a film should be a clue to it being fantasy
These video's are so much better than the regular tv-documentary where thet are endlessly repeating themselves to build up to commercial breaks and in effect tell nothing substantial which could't be said in a 10 second frame. So worth of funding and supporting.
The way you described that was great. It was so easy to understand and follow along with. 👏🏻
1:49 how have I never seen those star movements before?! That is incredible and should go hand-in-hand with the actual image of the Blackhole! Thanks for the video.
well, i mean, you can't see that with your bare eyes, most likely not with any aid one can buy =P (i'm making fun of you, don't take it serious)
Yeah, it's super cool!
I may be wrong, but I think read somewhere that the star obits every 20 years.
Those cluster of stars are called nuclear star cluster. One of the important star that help studying the SMBH is S2. Just search for it. It is very interesting, isn't it?
@@AllMightSage they've been observing and mapping those star paths around black hole for 20 years to made this 10 sec animation)
Reading "We photographed the Milky Way's black hole for the first time" seems like a big deal, but really it has little immediate meaning. You showing how it's done, what it takes, and what it means is just great. Also, it's awesome that you prepared this prior to the press release so it's still relevant when people find your video. Thanks!
Exactly!!!
@Dank Dank 🤡
@Dank Dank I think you misunderstand what radio waves are if that's your takeaway. Visible light and radio waves are the same thing, just at different wavelengths. Over long distances, the wavelengths of photons change due to the expansion of spacetime. The image they produced is just as real as any other image that would be produced by a camera.
@Dank Dank if it was cgi it would look like the Interstellar black hole. This is a blurry orang butthole
@@Dzia1ania don't bother explaining to Dank Dank, his brain is too small to comprehend what's going on here
Absolutely the best and easiest explanation to understand the black hole the way it looks in picture. Thank you so much.
Exceptional explanation! Easy to understand! Well done.
Imagine being that person who’s going on a plane carrying the hard drive of one of the telescopes, a piece of a puzzle that is truly precious beyond measure
I'm gonna go out on a limb and assume that they made a backup ;)
TSA would be interesting
"What's this suspicious box you're carrying on the plane?"
"It's a hard drive RAID"
"What's it for?"
"It contains a fraction of the data we will assemble to get a radioimage of the supermassive black hole in the center of the Milky Way"
"Today, I am Sneakernet."
Imagine a plane crash lmao
That was really well done. I also loved the touch as why "Interstellar", was the most accurate representation of what would be seen.
Great explanation! Best I've seen so far. Thank you. I think I understand it now.
Very clever way to demonstrate/explain the blockhole image. Thank you
This was such a well-explained video that even someone with limited knowledge of the subject (like me) could learn it easily. Very impressive and thank you for your effort!
Came here to write the same thing
The essential and professional man endeavors to set sail across the waters to the enchanted land of Europe. He has in historic past, leisured in the exotic terrain, yet now, he has chartered a ferry for the long term, the quixotic adventurer sails to the topography of that of Europe to never return.
Only replete with his knowledge procured over many a years, and bequeathed with the enlightenment one has when cobblestone displays it's beauty to that of a city with history equal to his own. We are creative people and shall our intrinsic value give extrinsic measurements of pecuniary worth.
Shall the winds of history flow always in our favour.
simply amazing explaination and visualization of the phyical nature of a black hole.
Absolutely masterful delivery! The combination of visual animations, props, and simple choice of words made this content so accessible!
Ah yes. The art of Programing!
Just amazing. Can't express how impressed i am with this video. It changes our understanding of blackholes.
Truly wonderful ❤️❤️❤️
Loved it so much....
Wow, the combination of all the different wavelength distortion blew my mind.
Such an elegant solution!
wow, i'm impressed how you easily explained stuff that I would never had the chance to understand by myself.... amazing work.
Well explained!!! It's the first time I truly understand the meaning of the Black Hole photos. Thank you!
That black hole and light explanation was fantastic! You are Very good at this!
This guy needs some kind of highest award for teaching humanity in such a easier way for us to understand
This guy never disappoints
what did you learn, though? The list of facts given by analogy in this video leave you wanting for everything. After watching this, I can't do anything new. I didn't learn anything I can apply. When you learned multiplication, you could multiply any number. When you learned to drive, you could drive anywhere. When I learned that light can't escape the one particular black hole except at 2.6 Schwarzschild radii of it's event horizon, the only new thing I can do is repeat that single sentence. He didn't teach us the math that he used to come to that number so we can't ever re-apply it elsewhere in our life or understanding, and he didn't teach us anything about relativity, telescopes, light, or anything else, that is, until the end, where he teaches us about his sponsor. Do you really feel educated after this video? If so, then tell me, what did you learn that you can use in your life or work?
And yet he got the singularity wrong, actually referring to the event horizon.
I love him to bits, and whilst the overall videos he produces are fantastic there are elements that are incorrect. Which obviously leads to albeit minor, misinformation.
I would still recommend him to people, but assuming he is 100% correct and brilliant in subjects he has not specialised in or sought expert advice on is silly.
So you are saying he should explain all the maths behind this image in a video...
See I am also agreed that we should learn how to apply things in practical life ...but saying we learnt nothing seeing the video doesn't make sense...
Not all scientists came up with the maths first... imagination is also a thing...🤷 And admiring one for their work isn't a bad thing I guess...🙏
@@Gypsophila_el I am simply saying that information that cannot be applied is useless. Your argument that it isn't meaningless fails to find an application of "what you learned", unlike other examples of learning where you develop a trade or skill or technique or formula which accomplishes something with the new knowledge. For example, can you use a telescope now? Having watched this, can you perform astronomy? Could you now operate any equipment related to the subject? Can you use what you learned to do anything? Anything at all!
@@RaisedBySheeps This is fake. I don't know any listener (not interpreter) who says that Beethoven's symphonies since, what can he do with that hearing? This is the observation and explanation of an extraordinary natural phenomenon. Of course it's at least as useful as listening to any Beethoven symphony (we know it does something but don't ask me to find a practical application for it).
I've taken two astrophysics courses at Princeton that have covered this topic. I've never got this much information on how adding the fringes actually works… VLBI is so cool
I just close my eyes , press my fingers on my eyelids putting pressure on my eyeballs and boom, I see the milky way galaxy with the black hole
@@mikebanks2176 😂
that is why going to the university makes no sense,
@@gabaktech People go to universities to make connections, grow their network. It's not always about state of the art education.
It's sometimes more about giving a potential employer some form of verifiable "proof" of your education, or even of your commitment to the subject itself.
Thanks a lot for the very simple and intuitive explanation of the way long base interferometry works!!
Fantastic content, as always. Great explanation.
Wow. It’s actually amazing how fast you were able to produce this quality, both visually and informative, in such a short time after the picture of our blackhole was taken. Thank you.
Yeah, that B-hole talk was nice
I love how he explained it that even a person who has no understanding of this subject can clearly comprehend the process of creating an image of the black hole!
Kudos to the presenter. Simply brilliant. Can't thank him enough.
Its so easy to understand, im not even good at english, i love this guy
Hey! Did you know God is three in one!? The Father, The Son, and The Holy Spirit! Bless them!
Jesus died for our sins, rose from the dead, and gives salvation to everyone who believes in him and follows his commandants!
Have a blessed day, everyone!! ❤
Because it is easy to make up lies and sell them to the fools....
@@Triggernlfrl too easy
This was so well explained! Amazing
Straight up, thank you for that. Id always wondered why the images looked that way and it made perfect sence. 😊
Somehow “supermassive” still sounds like an understatement. I vote for “SuperDuperMassive”
I'll bet WWE promotions on TV impress you as well.
History teachers ... hehahehahahahehe
TON 618 takes the crown there then, being one of the few Ultra Massive Blackholes and the biggest black hole we know of.
Supercalifragilisticexpialidocious?
There are the hypothetical "Stupendously Large Black Holes". So far, no such monstrosity had been observed, but it might only be a matter of time.
This was so rewarding to watch and fascinating to learn how far we’ve come in proving black holes exist. In my college astronomy texts from just two decades ago it was all still considered just theoretical. Thanks Veritasium!
Black Hole Deniers do still exist.
Professor Dave Explains has videos on it. I warmly recommend it if yuo want to laugh at some Science-Denial.
We haven't proven that black holes (as described by General Relativity) exist. The fact that these stars orbiting Sagittarius A* display no gravitational lensing effects whatsoever goes to show that the GR explanation of gravity is false - gravity is not the bending of spacetime at all. The path of light is unaffected by gravity. Gravitational lensing is a myth. All the observations that are claimed to be examples of gravitational lensing are really just good old refractional lensing in the density gradient of a gas cloud or an atmosphere.
@@scowi3 So we shouldn't see the light ring on a full moon eclipse.
@@betswally That's got nothing to do with gravitational lensing (and I have never heard anyone claim it is anyway!).
ok
That was 19 minutes!? Went by so fast haha, absolutely amazing! Thank you for this , love your space videos!
So cool the video, your explanations and even the sponsor of the channel!
10:31 the way the black hole’s picture appears from just black and white lines, is truly amazing.. hats off to the people who took this amazing image of our closest supermassive black hole 💖💖💖
Black hole doesn't bends light it warps the space-time fabric , light just follows the path
The awsome thing about veritasium is ads come in the end and you watch it without skipping itt as a loyal fan
Excellent video. Your best recent video in memory
Just four minutes I was thinking “this has got to be the best video in the history of cosmology”, and Derek’s only getting started. By the end I am just floored. Bravo.
I bet your new music videos won’t get as many likes as your comment here.
Yeah, the video just kept getting better. It was like five videos that would all be amazing on their own.
being a computer scientist, I still have hard time imagining how they synchronized those satellites.. so many parameters distance, gravity, elevation, movements, earth rotation, earthquakes, nanometer movements and so on.... and all this, with the accuracy of atomic clock :O
The magic of ass loads of AI, supercomputer runtime, and really smart people
It's actual incredible.
Hence, petabytes of data
No satellites involved. All ground-based telescopes
See Katie Bouman " Imaging Black Hole with Event Horizon Telescope" 13/04/2019, The explanation of 29 years old Computer Scientist which have created the picture from all that data.
The best video on the black hole, I have seen YET! Thank you.
excellent presentation, excellent work done by the animators on this, really expains everything well.
Your explanation of interferometery combined with the visuals, is the best I've seen! This is the first time I understand how this works, not just the concept, but the mechanics behind the concept! Well done!
Props to the camera man for going into space, risking his life for us to show us this masterpiece
Nothing bad ever happens to the camera man
20 minutes of explanation and here we are
@@Gsjsji_jwjsbs there is very simple and common sense message in that post. But a closed mind will prevent an exploration of all possibilities.
And no animals were harmed...
@@Gsjsji_jwjsbs theres always at LEAST one joker who posts stupid crap like this. it was funny.... once. now its just cliche' and stupid
This is mind blowing. Your videos are thorough and lucid.
Thank you - excellent visual explanation!
What a great explanation
Ikr! I hope they continue doing this!
Hey! Did you know God is three in one!? The Father, The Son, and The Holy Spirit! Bless them!
Jesus died for our sins, rose from the dead, and gives salvation to everyone who believes in him and follows his commandants!
Have a blessed day, everyone!! ❤
@@Call_Upon_YAH no. According to your religion, there is only one god, and it was not Jesus.
@@Call_Upon_YAH There is only one God in the bible and Jesus is his only-begotten. God is spirit and is holy, the holy spirit is the manifestation of His power and it is not some separate entity that you can imagine. Do you even understand what the words "only-begotten son" means?
Go read the Bible again brother. Don't complicate your mind with philosophical nonsense. There is no concept of trinity in that thing. The Greeks and Egyptians talk about three-in-ones but not Hebrew folks.
Save yourself first by correctly understanding what you believe in. Read it slowly and with understanding. Yes, Jesus is the king of the heavenly kingdom/government but his Almighty Father is the God of the bible.
Not really. Does this guy even have a degree in Astrophysics? Highly doubt it.
Can we appreciate how good this video is considering how recent the discovery is? I'm impressed
Pre-production, my friend.
I feel like he either somehow saw the pic before the public, or most likely produced the rest of the video before, hoping the discovery would in fact be the black hole's photo. Anyways amazing work
Isn’t this video a copy from his M87 Black Hole Photo
Dude it is called production. As a producer you need to gather the information relevant for the video. when we got the press release days ago we already knew about the findings. The only thing Veritas needed today was the picture.
@@vb2388 The black hole bits are. Remind me if I'm wrong, but he never actually covered the telescope array in nearly this deep a level of detail before. As for how he made the video, it's easy to anticipate this discovery years in the making, and easier still to make a video about the observation techniques for months, if not years, of study and preparation, and add in the discovery where it fits whenever it's out.
your video really helped me understand black holes better, thank you