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- เผยแพร่เมื่อ 19 พ.ย. 2018
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About once every century, a massive star somewhere in our galaxy runs out of fuel. No longer able to produce sufficient energy to maintain its structure, it collapses under its own gravitational pressure and explodes in a supernova. The death of that star is the birth of a neutron star: one of the densest known objects in the universe. David Lunney explores what, exactly, a neutron star is.
Lesson by David Lunney, directed by JodyPrody.
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I’m in awe of scientist seeing a flickering light light years away and then being able to describe the whole process from Earth.
You will be surprised to know that it was proved in theory first. Many things surrounding the the celestial bodies are in theory as of now.
Even Neptune was discovered when someone said, there will be a planet at this point in the night sky
@@silverlight4977 wow
@@silverlight4977 yes Neptune was the only planet discovered using maths ......... First Uranus was see. In the telescope but the telescope was not powerful enough to see Neptune but as Uranus was observed and it was seen that Uranus's orbit was affected by Neptune's gravity and like that it was assumed that there is a celestial body present even though it was not seen
Might be a sign that this is a whole lot of conjecture and not necessarily anywhere close to proven
@@dx5soundlabs939 I wouldn’t say so, I think that’s just an argument from absurdity. A lot of these understands are drawn from how we understand other areas of physics.
We have a pretty firm grip on gravity, and so one way we could determine it’s mass is by seeing how the object may effect objects near it. We have a very firm grip on orbital mechanics because a lot of that relies on classical mechanics. We may know what the object is made of or what a large portion of it is made of by using spectral analysis, a process used by chemists that can determine the chemical makeup of something by using the light emitted from it. We don’t know for a fact that neutron stars are made of just neutrons because that’s a hypothetical substance, but it’s heavily suspected because we know that with how dense it is there should be so much force exerted that it beats electron degeneracy pressure that is used to keep two electrons of the same spin from occupying the same space, and so clearly the pressure was beaten so it must be some other state of matter that exists.
There’s stuff we definitely don’t know, but a lot of it isn’t just mere “conjecture”, the methods they use to determine these things are very sophisticated and based on applications back at home. Also, I wouldn’t really use the word “proven”. We talk about “proof” when we’re in the world of mathematics.
"Nuclear Pasta, as it's squeezed from lasagna to spaghetti-like shapes"
*Heavy Italian breathing*
The funny part is that the observatory called Virgo is actually located in Tuscany (a region of Italy)
Very useful
Yeah. You are right
bich lasagna
send nakde pics
It's more amazing that Einstein, after his death, was proved right even recently. That's some amazing accomplishment.
Einstein is like the heavy weight champ of physics predictions. Probably in his grave right now thinking "I told you so"
Respect is good. But don't be too awestruck. Einstein is a theorist: he predicted. To prove him right or wrong, it still require the works of experimentalists and some measure of technology. So the glory is not Einstein's alone.
There are theorists living today as well. Have you heard string theory? It's still unproven. Those theorists' glory, if they ever come, won't be due to themselves alone.
A mind like Einstein or Newton come along in humanity every few generations. They are the carries of the science world.
Hawkins too.
@@yunoadirangga8155 lol someone seems salty
Not your fault you couldn't reach that level
Can't we get permanent lessons of Ted-Ed in School 🏫
Amen haha
What if there was a school founded by Ted
Well in Morocco school is like person, they don't want us to learn so we never understand the word democracy, a lesson like that to me is a treasure
@@polypaul5612 that's a great idea
Thanks TED-ed. I find this video very good. I guess, the my interest in the topic was satisfied with quality animations and information. I got surprised that I'm already at the end of the video.
You also took care of the very faint background music which is perfect to my ears! Most educational videos make the mistake of annoying BGM.
Yup, I'm starting a band called *NUCLEAR PASTA*
Sounds like a good plan‚ m’dude…
Mine is scalled spaguettification
Paradox can I join?
I'm burning doing the neutron dance! 🎶📻
LIGO and Virgo: What frequencies are you going to emit?
Colliding neutron stars: *YES*
“I’m going to get some lunch, what do you want?”
“ *Nuclear Pasta* ”
fresh neutron star getting out of the furnace
a fresh slab of the hardest Iron in the universe
1 spoon enough to feed your entire city along with animals
thats a pretty heavy lunch
TED-ED you people are great...All the videos are so resourceful❤❤ Thanks for all these videos💖💖
You said that about once in century a massive star in our galaxy runs out of fuel and it ends up with an explosion that leaves literally a neutron star. That means we get a neautron star once in a century right?
And for its beaming and spinning it appears to blink when viewed from earth. But we see couple of those blinking stars at a time. Is it for their ages?
I mean does it mean some of them are older that stay with the new ones?
This channel is extremely addicting. I'm supposed to be studying for my french exams but I cant stop watching.
I'm amazed by how much we humans have developed ourselves in trying to know about this universe...
But I'm mesmerized by how GIGANTIC this universe is, that we still have soooooo mucchhh to learn about! 😻
Hope this helps th-cam.com/video/i7930fj3T54/w-d-xo.html
@@akashmc thanks m8, it did help
isnt it great how insignificant you feel any time you ponder on the size of it all
We know nothing
freetown78, Yet, here we are talking about things that we know nothing of such as God. Of you can’t describe how the universe began as, then how can you even begin to comprehend what God is?!? I see Neil DeGrass Tyson talking about how he doesn’t exist and I actually like him but I think that he is wrong. As an astrophysicist, he should know that there is way to much out there that we can’t even begin to understand, so he can’t dismiss the idea of God because he can’t explain it or because our modern “science” can’t understand it!
Sorry about the long paragraph, I didn’t intend for it to be an essay or to offend any anyone
I love all Ted ed videos, but I think this is my favourite. The narration was excellent and easy to comprehend, and the animation was spot-on. Beautiful!!!
I love how the information is shown and told at the same time, and the animation is amazing too!!
That is the purpose of a video. A picture just visually displays information
4:00 Is he holding out his tongue!!?😂😂
Ye
My favourite Neutron is Jimmy, though I wouldn't call him a star.
I'd call him Sodium Chloride.
he's my star
Sebastian Elytron HAL
So you assign names to neutrons, I see. How much time to kill do you have that you assign names to all the neutrons in the Universe?!
(This is a joke, I know it's a cultural reference)
But he IS a star! A movie star!
Stunning animation and a wonderful lesson as always!
Outstanding video and superbly narrated. I learned a lot and always view your videos when they come out.
The recent researching method: multi-messager, has contributed a lot to the astrophysics field. So did the gravititional wave and the neutron stars, these are all significant discoveries which changed people's attitude toward the universe.
I wish we would get these information in school, then learning would be so much easier. Thank you ted ed 💗.
This is incredible!!! So interesting and amazing! Thank you Ted Ex!
I love it thank you for your knowledgeable lessons Ted-Ed
Almost to the end of semester taking two astronomy classes of general theory and observations. Finals are coming out and I am here to expand further comprehension of the stellar life cycle. It is amazing to know how these clouds are formed outer space and I am glad to know all about it. But really wish me luck in passing the finals.
I hope you did amazing on your finals! How were they?
@@angl3_275 not going to lie. I aced all my classes.
@@m.sakai_yt congrats!
Ted ed is the best place to get information
You mean if you want to be spoonfed antiquated theories about gravity being a function of mass. Good luck fitting Mt Everest into the size of a sugar cube. They have no idea how much mass is contained in a neutron star. It's total speculation.
@@DegreesOfThree said a person who thinks that the sky is divine grow up
Μιχάλης Διαμαντάκης You've got it bass ackwards. The planets aren't divine, but astronomy is the progenitor of theology. It's unfashionable now to worship Zeus though, so we've elevated pseudoscientific theories about gravity and dark matter to fill the void.
@@DegreesOfThree so you have disproven them??? You can go publish a real scientific research then
@@DegreesOfThree you know that all these things you call pseudoscience are proven don't you???
Do you know that you are the one that believes in pseudoscience???
Addison Anderson! I LOVE your voice; your style of narration and your easy to understand timing and tone. THANXTHANXTHANX!
nicely done david you did amazing on this and how did you get this information ted ed cause this is fascinating
It's all pretty well known and well circulated public information, actually.
Brilliant explanation with beautiful graphics 😀
Thanks TED-ed. I find this video very good. I guess, the my interest in the topic was satisfied with quality dream-like animations and information. I got surprised that I'm already at the end of the video.
You also took care of the very faint background music which is perfect to my ears! Most educational videos make the mistake of annoying BGM.
What a spectacular video this is thanks Ted x
Wonderful! this makes all the reading I've done about neutron stars so much easier to comprehend and understand. And it makes the gold ring on my finger that much more amazing...it was formed by a neutron star. We are all stardust!!
I had an exam about this yesterday, would have helped a lot. It explained what my teacher couldn't in 5 minutes. Can't believe it's that simple
Last time I was this early the Big Bang happened.
Zach
Woah r u god??
Lol, the big bang is based on a faulty assumption about redshift. If redshift can be intrinsic or caused by refraction, then the big bang hypothesis belongs in the dustbin of history.
@@DegreesOfThree r/iamverysmart
@Mostly Present what's a redshift?
@@genroynoisis6980 Redshift is when light appears to be of a longer wavelength, typically because it is moving away from the observer. However, they've found stars within the same galaxy that have radically different redshifts, which indicates that redshift may have other causes we don't fully understand. Since all distant galaxies appear to be highly redshifted, astronomers have assumed that the universe must be expanding, but this is a very flimsy assumption.
Incredibly difficult lesson to animate without making a bunch of errors and ending up with visual nonsense. Amazing job! You can tell that the expert (Lunney) had a ton of input. Congratulations TED-Ed team!
❤️Thank You TED-Ed for producing such Knowledgeable content for us.❤️
As amazing as always!
... but the pulsar animation is a bit off as far as I know. It's not really spinning lika a lighthouse, it's more like a small wobble of the axis the jets come out of. Would be harder to animate I imagine
Why this video is so satisfying...?
Because Einstein's tongue is out
Wow! Great editing!
Thanks for explaining this
Can't believe this is free
Thank you!!
Nothing is actually free my friend :)
Cheers!
The only 2 things I wonder when I watch these videos are Why cant Ted-Ed be in school and how do ppl find these stuff out? Like how did scientists find out what the inside of these neutron stars are like? BOI I NEED ANSWERS
Welcome to the crazy world of Metrology my friend. That's the study of measuring things. Of all of our modern areas of knowledge I really feel that metrology is actually our most advanced.
Well, 2000+ years of science and math did help :P
Scientists have never measured a sample of a neutron star, they're just making their best guess based on a faulty assumption about gravity. They think gravity is purely a function of mass, therefore a neutron star must be insanely dense even though such a density is patently absurd and has never been demonstrated to actually exist.
@@DegreesOfThree r/iamverysmart
@AssassinGamer5_ dunno the answer to the first question, but maybe this can help with the second one: en.m.wikipedia.org/wiki/Astronomical_spectroscopy
Thank you for that video
The lighthouse at the end was a nice touch.
The Universe is so much more awe inspiring than..let`s say: "A burning bush" -Christopher Hitchens.
Indeed!
I mean... if it starts talking to you... who wouldn't be O_O
Staying too long near a burning bush and all that smoke can give you some great trips.
Imagine trippin' that much that you start speaking to a bush... ləl
I have the urge to get some Italian right now. That pasta better be dense.
Al dente!
Lmao....I didn't read ur "Al dense" before my post. That's just good stuff there! Lmao
You explain soooo well
Thank you Ted-ed for providing this content i used it an more videos in a PowerPoint presentation we were assigned
Well, thank God for Eclipse or Breaking Dawn for Muse's song Neutron Star Collision
(:
Haha exactly why i came here! I love Muse
Nice 👍🏻 video well done ted ed
This was great, thanks!
Thanks for this great, very interesting video.
It’s hard to imaging a ball spinning 700 times per second
Yeah I just can't imagine it, something 25km accross spinning that fast, the equivalent of 42'000 rpm!
You think pulsars are awesome? Try looking up magnetars and quark stars.
Magnetars sounds like the next evolution of magmar from pokemn
+michael halim They'd be perfect for the next evolution of magneton tbh :D
@@feynstein1004 oh yeah i forget about that magnet family lol
+michael halim Lol no problem, mate. Physics and pokemon. It's a killer combination ^_^
Love these animations soo much
Super intelligent animation. Thanks TED.
3:22 so when a dense guy feeds off the charity of the lighter guy without return, the relationship ends up in a catastrophic hole of despair that snuffs the light out of everything.....
I had to search up what a "thimble" was...
Beautifully explained ❤
Amazing animation as usual
He didn't collapse so good.
Yay spacey stuff from Ted Ed
Awesome video!
Thank you so much
*The animations Supernova my brain* 💥
Nuclear pasta! Sounds tasty 😋
This makes me hungry 🤤
The artwork in this vid is marvelous!
Can we have a video on Dimensional analysis ?
Your videos are the best !! Thank you so much for providing us videos about the Universe
3:16 you called them "gravity waves" but there, you're very wrong: gravity waves are large surface waves on a fluid, like ocean waves. You mean gravitational waves.
And the ripples from a stone would be capillary waves, not gravity waves...
Neutron Stars are firmed when a MASSive star dies
Thanos: A soul for a soul
in the place of thanos there should be red skull 😅
Awesome and informative video
I think this is my favorite TED-ED video ever :)
How is there a magnetic field if neutrons have no charge?
Right point dude 👌
Because neutrons do have magnetic moment.
And that is because - while neutrons have zero net charge - they are made of three quarks (which have charge).
The spin also adds to the magnetic field
@@EneriGiilaan yea something called glucon's and others
@Siddharth M
Gluons? Not quarks themselves but separate type of particles meditating the inter-quark forces (strong interaction).
TEDED and Kurzgesagt are my best mentors
I would add Isaac Arthur to that list
This was so beautiful I cried
one another beautifully designed lesson
*Neutron Star:* _The pizza is aggressive._
1:46 PewDiePie's 9 year olds triggered!
Simply Amazing
Finally! I have waited a long time for the answer about neutron star's life cycle
Make on hyper nova also
There’s a Jimmy Neutron star, but what about a Carl Wheezer star?
Loving the physics videos!
Fantastic again
My dream is to see a falling star 💫
Me too,i've never seen any in my life besides those in cartoons😕
Comet*
That’s a meteor, not a star.
@@drsharkboy6568 i bet you're fun at parties
Lishook Hearteu I bet you say that to anyone trying to prevent misinformation. I know correcting may be annoying, but I find it a necessity to prevent misconceptions. I know this guy may have known, but it’s impossible to tell if someone knows what they’re talking about or not without correcting them.
Oh and the star is the meat ball
That opening quote is pure gold
Love the animations
When you're so early the title is spelled incorrectly
What was spelt wrong?
how to make thor's hammer
Use flat earthers
God the visuals in this video are more amazing than ever. Props to JodyPrody
Wow! That's amazing
THICC STAR
**thick**
@@justanotherchannelwithauno7580 your new to the internet are you
Neutron star have better life than me. 😭
Amazing!
Muito legal o vídeo.. adorei ... parabéns 👍👏👍👏👍👏👏👏👏
The likes on this video are about to get real dense
Give me heart
Ok ❤
Amazing got real respect
Awesome!!!
Discovery channel is quaking
574 views 592 likes hacks?? Likebot???
Just TH-cam getting drunk again.
Jeremy Zijdel YT views counts when you watch the whole video, likes don’t
TH-cam needs time to process views, likes, comments etc.
The continuity of the video is better than some movies. Good job to editors/animators.
Beautiful, all around.