What are gravitational waves? - Amber L. Stuver
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- Опубликовано: 29 сен 2024
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In September 2015, scientists witnessed something never seen before: two black holes colliding. Both about 30 times as big as our Sun, they had been orbiting each other for millions of years. A fraction of a second before the crash, they sent a vibration across the universe at the speed of light that was picked up by the LIGO detector. So what are these ripples in space? Amber L. Stuver explains.
Lesson by Amber L. Stuver, directed by Eoin Duffy.
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The bigger the mass the bigger the depression. I'm living proof of this.
Lemon 😂
;(
But mass and weight are not the same....say you weigh 100Kg(to be precise 100 Newton) your mass is aproximately 10 kg.... ; )
@@BumanHeing I thought this was a joke about depression.
@@esbastow yeah whooosh for me...
the sound design in this video gave me eargasms, I recommend wearing a good headset while watching this, such asmr
One of the best gravitational wave explanation videos. Thank you.
this animation is incredible
The animation is so perfect it explained gravitational wave very clearly. And cleared a few things up on what I was unsure about. Thank you 😊😊🌌🌌💖💖
So you love physics jacinda
ruclips.net/video/J3Hoax81rkI/видео.html
Thanks ted for one of the simple yet best video out there of gravitational waves.
this video is amazing and really hoping from you to make more videos
That animation is super awesome
I started to get a basic understanding of G-waves. Thanks to Ted-Ed
I love the animation so much
cool graphics
Thank you dor your with animation. It looks very pretty and helps in understanding. Please make more videos about space things. Unknown is beautiful!
Animation was dope.
Thanks for video
I love the animation! They are simple and no other distracting elements but can we abandon calling gravity as a force and probably make a video about it?
Are these connected somehow?
Time is fascinating. I worked the subway stations for nearly 10 years. From one end of the city to the other. Every so often I would notice the city would be saying that, "Today just flew by" or "The day was just dragging along." How can an entire city, with no interaction with each other until they used the subway, complain about the same time paradox unless it was effected by it? Maybe a time distorted bubble the earth passes through in its revolution around the sun. Maybe random waves of time distortion hitting the earth? Maybe they're given off by the sun. Maybe they're from outside our Terran system and reach us in intervals. ???? Ti-i-i-ime, is on my side. Yes, it is!
Teşekküler ted senin sayende biraz olsun kültürleniyoruz 😊😊
I really like this style! Please keep it up.
Thanks
Considering gravity waves discovered by LIGOS has not passed peer review after 5 years. Maybe giving the scienctist involved the Noble Prize in Science may have been jumping the gun.
this is really amazing
When a five minutes video better than your physics teacher
i was ready for a BOOM!!!
With the help of gravitational waves time travel to forward future could be possible.
Nice animation
Some alien/other intelligent lifeform is using a VPN right now to watch this video and as he gets halfway through, he's like "Lel, Noobs."
Could anyone link me to a document containing *all* the nuclear fusion reactions? I really need it. Thank you. And yes, I checked on Google and it didn't help much.
Gravitational waves in linearized gravity can be described as manifestly observable Riemann curvature tensors from Einstein's field equations. The Ricci tensor will vanish while the Riemann tensor can be nonzero as well.
Hey, I'm a pateron, and was wondering when I get the emails for the coloring books, and the other stuff you offered?
I think that the shadow bands visible during a total solar eclipse are caused by the moon's gravitational waves :)
Please make A video to describe that why Light cannot penetrates Walls or opaque object..since light is also a EM wave and other waves like gamma and radio wave can pass through them
If we were to be sufficiently close to an event that causes gravitational waves at an amplitude of say 1 cm, would it destroy us? I visualize these waves travelling through space, as gravitation interacts with matter weakly, would the strain on matter for such a wave be high?
My idea so I get to name it! What I mean is, no one has claimed it so I'm officially calling, "dibs." Voyager 1 is now in Milky Way's interstellar time or "Mikey's Time."
"V-ger's" message has sped up now that it's outside our suns time bubble or, "Terran Time." It will be faster still when "V-ger" sends a message from beyond the Milky Way's time bubble. Then there's Outside the Local Group time bubble. So on and so on until we get outside any influence and into the, "True Interstellar Time Standard." Or, "T.I..." ;-P
Now that "V-ger" is in interstellar space, it's also in the Milky Way's STANDARD, faster moving, interstellar time or "Mikey's Time." This can be proven by turning off everything except its clock and transmitter. Have "V-ger" read time for as long as possible. They WILL show the flow of time speeds up the further away you get from any celestial bodies. Until you reach the Milky Way's time standard or "Mikey's Time."
•Our sun's time bubble: "Terran Time" we know and have measured.
•Milky Way's time bubble or "Mikey's Time." The rate/flow of TIME outside any influence but within the Milky Way: We just got there and are still figuring. Wild guess I'd say time will increase in speed, now and until V-ger is outside the Ort cloud .00007-.0007% faster, maybe. Just for reference.
•Local Group's time bubble or the rate/flow of time outside of any influence but within the Local Group: Name still open and unknown. Wild guess .08% to a couple seconds faster, maybe. Used just for reference.
•Outside any influence in the, "True Interstellar Time Standard." (or T.I...) ;-P This name is NOT up for grabs. The rate/flow of time is fastest here. (Time flows fastest here so it's best to use a motor boat and hold tight. Always applies when you're in T.I....) ;-P
A minute is a minute in all. It's the rate/flow I'm talking about. Heck, rivers of time flowing differently might explain dark energy and dark matter.
The Milky Way's Interstellar Time Standard will be known as, "Mikey's Time."
Pass it on, please and thank you
So does that mean whenever different objects collide, they emanate different gravitational waves? How are we able to detect the size and source of the object from a gravitational wave?
anything with a mass sent gravitational wave but you need something humongeus so we can detect it.
Once you detect the wave ( any wave really ), you can measure the waveling lenght. And with that you can figure out alot of stuff
September 14th is my birthdate Yay! Happy cause I'm into quantum mechanics as well, Thank You TedEd for making this video.
Gravitational waves in linearized gravity can be described as manifestly observable Riemann curvature tensors from Einstein's field equations. The Ricci tensor will vanish while the Riemann tensor can be nonzero as well. The components of the affine connection (Christoffel coefficients) can be given by partial differentiation. The usual notion of 'gravitational force' disappears in general relativity, replaced instead by the idea that freely falling bodies follow geodesics in spacetime. Given a spacetime metric gab and a set of spacetime coordinates xa, geodesic trajectories are given by the equation as where τ is a proper time as measured by an observer travelling along the geodesic.
@@josephlau13d77 this was a goldmine of technical terms and concepts for me to learn about and a pleasure to read, thanks so so much
Why gravitational waves always travel at speed of light?and what makes speed of this waves constant?
because the speed of light isn't really the speed of light, it's the speed of causality. It's the fastest speed that anything can happen, because it's the speed at which the universe is expanding, which is why it's the speed limit of light, because if light went faster than that, it would exist before the universe existed and if I keep this sentence going I might have a stroke.
Amasing video, animation and nattative you guys go! However you didn't exolain what spacetime is, I understand it for how Einstein explained it. Just something that I wanted to point out
There is already a 3 part TED-Ed series on "The Fundamentals of Space-Time". They are great and you can view them here: ed.ted.com/lessons/the-fundamentals-of-space-time-part-1-andrew-pontzen-and-tom-whyntie
could we difract a gravitational wave?
TedEd...
I love you
learned more than what i study in college
I have just watched TV show on Ligo and saw the face who give this idea
plz do a video about modern day political groups
Can it b possible that gravitational waves are reason behind the expansion of our universe ???
No.
WAIT! HOW DOES MASS AFFECT GRAVITY? I mean the more the mass is, the more will be the gravitational energy pulling it downwards...BUT WHY ?...HOW?
Could we have time travel with these gravitation waves ?
Does this mean that if humanity is ever able to control the output of these gravitational waves and amplify the force, we could engineer anti gravity chambers?
What will happen to us if we and our planet are hit by large gravitation waves that are generated right before and we can see without any pain?
So you are saying reality ripples occasionally but only a little bit? A little disconcerting but thanks for the heads up I guess.
Cmon these contraptions are so complex, this interference theyre detecting theyre producing themseleves
OK that was a good video
.....
That animation is the greatest on TED-Ed's history. It made me feel the waves and gravity, so sweet.
+
Isn't it beautiful?
It's really neat and helps to easily understand
+1 also the sound design is amazing
very kurzgesagt-esque
It's insane that Albert Einstein predicted these waves in 1916. Such a genius
He just followed the math and observation
@@naeemtull2026 what have YOU done with your life? It's honestly pathetic trying to undermine the achievements of someone like Einstein
@@besto5486who are you to undermine his life? This just seems like a psychological phenomenon of you projecting your uselessness on him. Learn to be respectful to others. Replying to fire with oil is not a good idea.
@@flamegamer3293 no. I am respectful of others but i don't give everyone the same level of respect. The guy above is an example. I undermine whomever i want as long as they did something worth me doing that.
And these ones we first detected were around 100 light years away from the earth at the moment he came up with the theory! 😄
The background sounds and animations are simplistic and awesome
I'm fascinated...
- Albert Einstein 2019
O_O
Quantum entanglement exists 😂
I'm scared...
-Albert Einstein 2020
Hey albert. U watch sinchan too. Nice to meet yah
Spooky action by Einstein 😂
This is a Great Video. I love how all ted ed animations are so nicely done - they make sure the message goes across to whoever is watching, no matter the topic. Getting Inspired by Ted ed over the years we also make ANIMATED HEALTH VIDEOS on our channel. Do check it out if you get the time.
I love animated videos. Your channel is also decent. though not as cool as Ted ed. Try making the animations more colorful.
Cool Videos . i subscribed. this animation or that. i dont care as long as i get to learn. :D
Health Chronicle We really should become a Patreon when we are able to 😊😊🌌🌌💖💖
Thanks for the support. We will get this process started :D
The animation on this one is exceptional, even for Ted-Ed!
You mean I can send my mixtape out to the whole universe through gravitional waves?
Nope, this is not just like a radio waves, its just a ripple of space-time because something massive is causing this
sendo ben
his Mixtape is massive 💥💥💥
@@sendoben8517 till now l could not understand or imagine the space-time in three dimensions.Can anybody explain?
@@rajeshchandrasekharan3436 there's no way humans can imagine the true 4d spacetime though. Scientists can only make projection of it onto our world.
1 It'll be confused with noise coming from other objects
2 it gets exponentially smaller the farther it gets
Although, technically, its always there, so, yes
Q. What are gravitational waves?
A. "Fluctuations in the gravity coming from the universe are called gravitational waves." (1:33)
Full marks to you
Disturbances in the curvature of spacetime generated by accelerating masses, such as from pulsars. Even quantum fluctuations can affect the interferometer's detection of these gravitational waves. First discovered in Einstein's general relativity paper. Gravitational waves can be described as manifestly observable Riemann curvature tensors.
@@josephlau13d77 Damn, now I need to get a physics degree and come back to read your comment xD
Same: 2:10 - 2:19
“When the mass making the depression moves, this sends out ripples in space-time. These are gravitational waves”.
Mass
Watch with headphones. What an experience........wow just wow
U were right bro
When tree falls in a forest and nobody there to hear it, does it make a sound?
LIGO: Yes
That riddle is very outdated with our current understanding of sounds. Of course it produces sound waves.
The question is whether it exists where there is nobody to observe it.
@@tuckertechnolord6126 In fact it has never been more up to date.. something that both hanned and did not, rings any bells?
I gotta say, props to the scientists that came up with the gravitational wave detection method. It's not scientifically speaking foul-proof, as a number of less extraordinaire factors could still be a cause of it, but the method for measuring these waves did surprise me given it's precision compared to some other grandiose experiments conducted in the field of physics nowadays. Great job to the ted-ed animators and script-writers too, as this was a brilliantly informative video.
"foul-proof"
Thanks for making the complex concepts very simple to understand . Simply phenomenal ted.
Q: Why was the fabric of space-time sad?
A: Because it had a gravitational *depression* !
A great video on such a tricky topic. Easy and understandable.❤👌
Gravitational waves in linearized gravity can be described as manifestly observable Riemann curvature tensors from Einstein's field equations. The Ricci tensor will vanish while the Riemann tensor can be nonzero as well.
If gravitational waves are produced by the movement of planets and stars, then there must be a constant noise in space. How could you discern the specific sources?
Gravitational waves are super super weak. The movement of the sun or the moon does cause ripples but too low for our detection. Veritasium has a video explaining any speculation you have of LIGO and how it detects gravitational waves
Your question has already been answered, but I just wanted to say that it was a very good question; just the type of question that you should be asking :)
this video is both visually and audio balanced perfectly to explain the topic. It delivers knowledge with impact.
1:07 when people see you with an iPhone X
LASER = Light Amplification by Stimulated Emission of Radiation
LIGO = LASER Interferometer Gravitational wave Observatory
So LIGO = Light Amplification by Stimulated Emission of Radiation Interferometer Gravitational wave Observatory?
Extremely clear and concise explanation, thank you.
This animation was.... Just....Amazing!
This video is very informative.Thanks for uploading it.☺☺☺☺
Nice graphics. Minimal but elegant.
Gravitational waves? The things that are caused by Chuck Norris breathing in and out?
😒
actually every moving mass creates gravitational waves, so yes you are right ;)
TMR Teckk that joke is ancient
Zarif Safwan Hoque so are the gravitational waves we detected
Momin Alam yeah this merging took place eons ago
Light is just too slow
The visuals are really pleasing the eye!
But 1 if spacetime fabric is frictionless why would gravitational wave eventually collapse..?
2 what this waves are made up of.
3 are they electromagnetic if not how come they travel at the speed of light?
My issue is that all explanations and animations describe this phenomena like a sheet… 2 dimensions. I can’t seem to make the mental leap to picturing how this works in all directions at once. Anyone know of another way to describe this for the less creative thinkers like me?
Great vid, great animation, but the framerate of it really snapped me out of it several times. Very shaky.
I lovev gravitational waves , donno why 😗
Agar.io animation, a perfect example of gravitational waves
Jerry Xue Haha! While I was watching that part of the video I immediately thought it, too. 😂🔵🔴⚪️⚫️
amazing design
The scientists used heavy,bulky,expensive materials. Einstein used calculation.
LIGO actually just rumoured to have detected a collision of neutron stars! It's so exciting and brings tears to my eyes... Space and technologies really fascinate me 😊😊😍😍🌌🌌💖💖
they discussed it on pbs spacetime in the latest video
Gravitational waves in linearized gravity can be described as manifestly observable Riemann curvature tensors from Einstein's field equations. The Ricci tensor will vanish while the Riemann tensor can be nonzero as well. The components of the affine connection (Christoffel coefficients) can be given by partial differentiation.
Does anyone know if we'd feel the effects of a gravitational wave if the gravitational wave stemmed from a much closer source? 2 Neutron stars colliding somewhere close to our galaxy for example ?
No, but I'm certain there'll be people claiming to sense something.
"I'd love to see Einstein's face now"
Ehhh I don't think looking into the eyes of a dead corpse is good....
Da Dragon Durp LOL
Fluctuations a.k.a something that changes frequently
the animation are simple, but also marvellous
You could say they're....
Simply marvelous
By simple logic - if these waves distort "spacetime", it should not be possible to detect them with a detector that itself is in the said spacetime. As the detector would be distorted along with it. Tell me if I'm wrong and why. Also, I've always been bugged by how they depict gravity wells with a 2D mesh plane with 3D celestial bodies on it. Shouldn't the spacetime be, like, in 3D? Also, shouldn't there be a medium for the wave to propagate through? So what is that, that waves?
pov your thesis paper is due in 3 days but you are clueless about the topic your paper is on
You mean I was compressed and elongated without my notice?
Shoulda mentioned how LIGO was able to detect these gravitational waves 1/1000 the diameter of a proton
How can people believe in God after watching this video?
Boy I'd like to study Astrophysics but... Y'know. Reasons...
Space: [shakes]
Scientists: *TWOBLACKHOLESCOLLIDEDONEMILLIONYESRSAGOANDWECANFIGUREOUTEVERYTHINGTHEYDEVERABSOREDANDEXACTLYWHATTHEBEINGORBITINGTHOSEOBJECTSCALLEDTHEMAND*
Imagine listening to this video with a subwoofer
to ce completely honest. this is literally one of the best channels on youtube. vox, physics girl, and veritasium being next
Congratulations to these physicists on winning the Nobel Prize in physics
Have you heard about the story of the man, the robot, and the factory? There was a very smart man. This man made a robot to serve him and build a small factory as well. The man gave the robot a Manuel on how to run the factory and told him that if he did these instructions right and run this small factory successfully for a short period of time, he would give him a reward. He would let him lives in a place more luxurious, beautiful and bigger than this, and that he does not have to work, but only to enjoy life and that all of his wishes will come true. The robot agreed at first, but as soon as he entered the small factory, he forgot to work and follow the manual. Instead, he began to see the many devices in the factory and did a lot of tests to see how this factory works. Time ran out and this robot did not do any work as ordered by his master. Instead of his master rewarding him, he ordered him to be dismantled and thrown in the scrap shop.
If everything has a gravitation pull because of mass........
I am not mass because I am not attractive
Loved the question at 1:47 "but what are they ripples on?.."
derived from the quadrupole formula
On Space Time Fabric
Where does it making depression then it's is also a matter..
In case it ever happens, can scientists be able to tell if a gravitational wave passes earth and bounces off something and passes earth a second time coming from the opposite direction?
There's this book called the Urantia book that perfectly explains what gravitational waves are with detail. This book was written around 1934 and this recent discovery was in 2015. Our science is catching up to what this book speaks about. And there's more discoveries that the book has predicted. Check it out...
"THE URANTIA BOOK"
Peace be upon you.. .