I was hoping you'd show an actual derivation that shows how the Field Equations predicted gravitational waves. This was still informative and interesting though. You explain things really well.
Yeah I agree. When other youtubers go through the maths of gravitational waves, it's complete hieroglyphics so I would've liked it if Parth had explained the maths of how the waves move using his clear style of explanation
@@ParthGChannel I felt disappointed when the video ended at the very mention of Waves. Why should a spacetime distortion move in a wave like fashion, why can't it be just a constant distortion of space in time? What is the energy driving the wave if any such exists in the first place and how does it dissipate. I guess there are some generally accepted assumptions to answer these questions but what are they? If my questions are ridiculous then why?
If you understand how waves move through any medium via the wave PDE its pretty intuitive to extrapolate gravitational waves from GRs equations for the background medium known as spacetime. Just like a finger moving through water creates a wake, so too does a moving point mass.
Parth, thank you for these videos. Thank you for the time you spend to research and put into words closer to what the common person can understand; your videos have made so many complexities more understandable.
This is an amazing amount of awesome content, very articulately compressed within an 8½ minute video. In fact, it is so clearly & eloquently expressed: that I can still follow it all in just 4¼ minutes when I double the playback speed.
Parth bhai you are actually very underrated. You just can't imagine how much joy and insight you give me through these videos and these serve as a great inspiration for studying physics.
Beautiful video, thanks for explaining such a complex topic in such an easy to understand way. Thumb up for you. 👍 As a german I noticed the pronunciation of the names. You did really well, but there is room for improvement. The name Schwarzschild, the 1st part "Schwarz" is point on. The 2nd part "schild" is pronounced like "chilled" but with "sh" instead of "ch" (not child). The other name "Droste" is almost perfect, just the "e" is missing, pronounce the "e" like in "get". Thanks and keep on the good work. 🥰
I am really interested about how the field equations reveals the nature of black holes and whites hole and cant wait for a video regarding how white holes may be a possibility of inter-space time travels through wormholes
Thank you for helping dispel a common popular misconception: that Einstein discovered black holes. In fact, at first Einstein was happy that someone (on the Eastern WWI front of all places) had found a way to get solutions to his equations. But, a subsequent paper by Schwarzschild in February 1917 that pointed out that a "black hole" was a solution, deeply annoyed Einstein, and he proceed to doubt its veracity. Not only 1939 did someone publish a paper about the clear possibility of a "black hole". That someone was none other than Oppenheimer. There were again naysayers, most prominent of which was John Wheeler, but later in the '60s he admitted that after all Oppenheimer was correct. Legend has it that Wheeler wondered aloud during a conference talk what should the new phenomenon be called, and that someone from the audience shouted "black hole". Again, truth is stranger than fiction.
Sudut pandangnya cenderung ke kimia, disarankan pakai sudut pandang fisika mekanik seperti halnya partikel dalam quantum. Pertanyaannya, apakah gas yang dibahas itu berbentuk atom atau partikel atom dalam hal ini elektron?
Could you just make a video on waves, their properties wavelengths, wave numbers, and etc. I really have a hard time in having the essence of the concepts, the terms used like plane waves, standing waves etc.. Its a humble request
Most people don't know that Einstein said that singularities are not possible. In the 1939 journal "Annals of Mathematics" he wrote "The essential result of this investigation is a clear understanding as to why the Schwarzchild singularities (Schwarzchild was the first to raise the issue of General relativity predicting singularities) do not exist in physical reality. Although the theory given here treats only clusters whose particles move along circular paths it does seem to be subject to reasonable doubt that more general cases will have analogous results. The Schwarzchild singularities do not appear for the reason that matter cannot be concentrated arbitrarily. And this is due to the fact that otherwise the constituting particles would reach the velocity of light." He was referring to the phenomenon of dilation (sometimes called gamma or y) mass that is dilated is smeared through spacetime relative to an outside observer. This is illustrated in a common 2 axis dilation graph with velocity on the horizontal line and dilation on the vertical. This shows the squared nature of the phenomenon, dilation increases at an exponential rate the closer you get to the speed of light. General relativity does not predict singularities when you factor in dilation. Einstein is known to have repeatedly spoken about this. Nobody believed in black holes when he was alive for this reason. Wherever there is an astronomical quantity of mass, dilation will occur because high mass means high momentum. There is no place in the universe where mass is more concentrated than at the center of a galaxy. According to Einstein's math, the mass at the center of our own galaxy must be dilated. In other words that mass is all around us. This is the explanation for the abnormally high rotation rates of stars in spiral galaxies (the reason for the theory of dark matter) the missing mass is dilated mass. According to Einstein's math, there would be no dilation in galaxies with very, very low mass. To date, this has been confirmed with 5 very low mass galaxies all showing no signs of dark matter. In other words they have normal star rotation rates. This is virtual proof that dilation is the governing phenomenon in galactic centers, there can be no other realistic explanation for this fact.
Time stops at the event horizon so matter can't move to the center. there is mass inside the event horizon based on what was there before the event horizon was formed.
You make amazing videos I request to make video on this topic I know it's not a quiet scientific topic but because after seeing your video i see you are very knowledgeable in history of science I request you to make video on why pioneers of quantum Physics schrodinger, Bohr , hisenberg, david bohm were very interested in Eastern mysticism or religion while dealing with quantum mechanics interpretation like Advait Vedanta or taoism, buddhism which states with whole world is a one consciousness and realities and then we have fritzof capra Tao of physics book in 1975 which considered by many scientists as pseudoscience but praised by heisenberg . In his book "my view of life " by schrodinger in chapter the vedantic vision he advocate for why seeing quantum mechanics with reductionist and scientific method is not useful and he advocating for so called holistic view which is vedanta. Many will say it just pseudoscience as used by people like Deepak Chopra of connecting both , but why these noble prize winners are falling for it ?
I do remember from college that “Space-time tells matter how to move; matter tells space-time how to curve”, which I believe was from John Wheeler. Then it got harder and I drifted off to computers instead of physics. Just I wish I'd have been brighter and stuck with it, because this stuff now sounds like a hoot! ruclips.net/video/oduGR136n7I/видео.html Okay and for the first time I'm going to get picky with you here (sorry!) - but you just said that "at this time" we cannot know what happens inside the event horizon. Surely we cannot ever, even in principle, *ever* know any of that? But later, I did like your bit about gravitational waves. Quick skim, but helpful.
Nice moustache, Doctor. The shear stress gave me a little bit of anxiety 🤓 Now, warping... 🤔 😬 Since my branch is quantum, you understand we use flat not expanding not anything vector space, right? The metric. It's like pondering, full math stuff like in audio engineering, where we have many domains, amplitude, frequency, phase. So, we are aiming to average listener, we have RMS levels with log dBFS, but human ear has different frequency response correlated to amplitude, so we use LUFS which shows the intensity ppl hears, and it's because a big RMS because just BASS 🤔 With these weighted average we can mix loud according to best frequency response for most transducers like speakers 🤓 The metric tensor is similar. You can analyse certain part of.. 🤔 😬 I'm not a GR man, I'm teenie weenie😂🖖Quantum
idk ud see this cmt ,ill try, my question is "where does constants come from in an equation how do famouus scientist know about their constant was there in nature" (G,h,K etc..)
The electromagnetic field ("EM") and Lorentz force have the affect of increasing the apparent gravitational attraction and attraction and repulsion from EM, and it's observer dependent. When contributions from charge and angular momentum significantly diverges from the standard Newtonian predictions, the Kerr Metric is needed to account for charge, spin, and frame dragging.
On cosmic scales could black holes be the "particle" of the gravity field? The black holes are the mediators of the space-time field by generating the gravity waves that propagate through the universe as they merge together.
Well every massive object can "generate" gravitational waves, even an apple. But what has been mentionned tho is the possible existence of the "graviton". A particule interpretation of gravitational waves, like for light.
Spacetime should not be called spacetime. Furthermore space does not bend. Space is nothing and you can't bend nothing. What is being bent is the electromagnetic web/pool that everything in the universe is sitting in.. Perhaps we should call spacetime what Tesla and Maxwell called it - The Ether.
I was hoping you'd show an actual derivation that shows how the Field Equations predicted gravitational waves. This was still informative and interesting though. You explain things really well.
Yeah I agree. When other youtubers go through the maths of gravitational waves, it's complete hieroglyphics so I would've liked it if Parth had explained the maths of how the waves move using his clear style of explanation
Thanks for the feedback - I'll try and come up with a nice explanation in a future video!
@@ParthGChannel I felt disappointed when the video ended at the very mention of Waves. Why should a spacetime distortion move in a wave like fashion, why can't it be just a constant distortion of space in time? What is the energy driving the wave if any such exists in the first place and how does it dissipate. I guess there are some generally accepted assumptions to answer these questions but what are they? If my questions are ridiculous then why?
If you understand how waves move through any medium via the wave PDE its pretty intuitive to extrapolate gravitational waves from GRs equations for the background medium known as spacetime. Just like a finger moving through water creates a wake, so too does a moving point mass.
the only issue with Schwarzschild was that everyone who came to a certain vicinity to him seamed to disappear...
Parth, thank you for these videos. Thank you for the time you spend to research and put into words closer to what the common person can understand; your videos have made so many complexities more understandable.
This is an amazing amount of awesome content, very articulately compressed within an 8½ minute video.
In fact, it is so clearly & eloquently expressed:
that I can still follow it all in just 4¼ minutes when I double the playback speed.
Parth bhai you are actually very underrated. You just can't imagine how much joy and insight you give me through these videos and these serve as a great inspiration for studying physics.
Thanks!
Thank you so much!
Beautiful video, thanks for explaining such a complex topic in such an easy to understand way. Thumb up for you. 👍 As a german I noticed the pronunciation of the names. You did really well, but there is room for improvement. The name Schwarzschild, the 1st part "Schwarz" is point on. The 2nd part "schild" is pronounced like "chilled" but with "sh" instead of "ch" (not child). The other name "Droste" is almost perfect, just the "e" is missing, pronounce the "e" like in "get". Thanks and keep on the good work. 🥰
So does Schwarzschild mean black shield in German ?
@@danbotez1307 Yes it means black shield. But keep in mind its the family name of the guy who did the calculation. Weird coincidence.
I am really interested about how the field equations reveals the nature of black holes and whites hole and cant wait for a video regarding how white holes may be a possibility of inter-space time travels through wormholes
I'd like to know how charge affects spacetime, since you repeatedly mentioned that physicists often assume zero charge in Einstein's Field Equations.
Thank you for helping dispel a common popular misconception: that Einstein discovered black holes.
In fact, at first Einstein was happy that someone (on the Eastern WWI front of all places) had found a way to get solutions to his equations. But, a subsequent paper by Schwarzschild in February 1917 that pointed out that a "black hole" was a solution, deeply annoyed Einstein, and he proceed to doubt its veracity.
Not only 1939 did someone publish a paper about the clear possibility of a "black hole". That someone was none other than Oppenheimer. There were again naysayers, most prominent of which was John Wheeler, but later in the '60s he admitted that after all Oppenheimer was correct. Legend has it that Wheeler wondered aloud during a conference talk what should the new phenomenon be called, and that someone from the audience shouted "black hole".
Again, truth is stranger than fiction.
Thanks! Another great video. Just "mathy" enough.
Lucid explanation of things I (as a non-scientist) had heard of but never understood.
Aaw
It's very simplified, come on Doctor Parth! Juicy bits, gory maths, those are just manifolds 🥺🤓🖖
Can we have a video on magnons!!
your graphic is wrong= the curvature must be inward were the distance is minor and the effect increases
Sudut pandangnya cenderung ke kimia, disarankan pakai sudut pandang fisika mekanik seperti halnya partikel dalam quantum.
Pertanyaannya, apakah gas yang dibahas itu berbentuk atom atau partikel atom dalam hal ini elektron?
Could you just make a video on waves, their properties wavelengths, wave numbers, and etc. I really have a hard time in having the essence of the concepts, the terms used like plane waves, standing waves etc.. Its a humble request
Most people don't know that Einstein said that singularities are not possible. In the 1939 journal "Annals of Mathematics" he wrote "The essential result of this investigation is a clear understanding as to why the Schwarzchild singularities (Schwarzchild was the first to raise the issue of General relativity predicting singularities) do not exist in physical reality. Although the theory given here treats only clusters whose particles move along circular paths it does seem to be subject to reasonable doubt that more general cases will have analogous results. The Schwarzchild singularities do not appear for the reason that matter cannot be concentrated arbitrarily. And this is due to the fact that otherwise the constituting particles would reach the velocity of light."
He was referring to the phenomenon of dilation (sometimes called gamma or y) mass that is dilated is smeared through spacetime relative to an outside observer. This is illustrated in a common 2 axis dilation graph with velocity on the horizontal line and dilation on the vertical. This shows the squared nature of the phenomenon, dilation increases at an exponential rate the closer you get to the speed of light.
General relativity does not predict singularities when you factor in dilation. Einstein is known to have repeatedly spoken about this. Nobody believed in black holes when he was alive for this reason.
Wherever there is an astronomical quantity of mass, dilation will occur because high mass means high momentum. There is no place in the universe where mass is more concentrated than at the center of a galaxy.
According to Einstein's math, the mass at the center of our own galaxy must be dilated. In other words that mass is all around us. This is the explanation for the abnormally high rotation rates of stars in spiral galaxies (the reason for the theory of dark matter) the missing mass is dilated mass.
According to Einstein's math, there would be no dilation in galaxies with very, very low mass. To date, this has been confirmed with 5 very low mass galaxies all showing no signs of dark matter. In other words they have normal star rotation rates.
This is virtual proof that dilation is the governing phenomenon in galactic centers, there can be no other realistic explanation for this fact.
Any Nurse will tell you that Human Life is dependant upon the timely dilation of the space around the infant mass.
Your videos are great 👍
Time stops at the event horizon so matter can't move to the center. there is mass inside the event horizon based on what was there before the event horizon was formed.
You make amazing videos
I request to make video on this topic
I know it's not a quiet scientific topic but because after seeing your video i see you are very knowledgeable in history of science I request you to make video on why pioneers of quantum Physics schrodinger, Bohr , hisenberg, david bohm were very interested in Eastern mysticism or religion while dealing with quantum mechanics interpretation like Advait Vedanta or taoism, buddhism which states with whole world is a one consciousness and realities and then we have fritzof capra Tao of physics book in 1975 which considered by many scientists as pseudoscience but praised by heisenberg . In his book "my view of life " by schrodinger in chapter the vedantic vision he advocate for why seeing quantum mechanics with reductionist and scientific method is not useful and he advocating for so called holistic view which is vedanta. Many will say it just pseudoscience as used by people like Deepak Chopra of connecting both , but why these noble prize winners are falling for it ?
I do remember from college that “Space-time tells matter how to move; matter tells space-time how to curve”, which I believe was from John Wheeler.
Then it got harder and I drifted off to computers instead of physics. Just I wish I'd have been brighter and stuck with it, because this stuff now sounds like a hoot!
ruclips.net/video/oduGR136n7I/видео.html
Okay and for the first time I'm going to get picky with you here (sorry!) - but you just said that "at this time" we cannot know what happens inside the event horizon. Surely we cannot ever, even in principle, *ever* know any of that?
But later, I did like your bit about gravitational waves. Quick skim, but helpful.
Nice moustache, Doctor.
The shear stress gave me a little bit of anxiety 🤓
Now, warping... 🤔 😬 Since my branch is quantum, you understand we use flat not expanding not anything vector space, right?
The metric. It's like pondering, full math stuff like in audio engineering, where we have many domains, amplitude, frequency, phase.
So, we are aiming to average listener, we have RMS levels with log dBFS, but human ear has different frequency response correlated to amplitude, so we use LUFS which shows the intensity ppl hears, and it's because a big RMS because just BASS 🤔 With these weighted average we can mix loud according to best frequency response for most transducers like speakers 🤓
The metric tensor is similar. You can analyse certain part of.. 🤔 😬 I'm not a GR man, I'm teenie weenie😂🖖Quantum
5:46 Actually it is not just this moment in time, it is forever.
How can a singularity have angular momentum? There's no 'radius' from the center of rotation.
In one month and also he was a soldier in world war 1
idk ud see this cmt ,ill try, my question is "where does constants come from in an equation how do famouus scientist know about their constant was there in nature" (G,h,K etc..)
So, does charge affect the curve of spacetime?
The electromagnetic field ("EM") and Lorentz force have the affect of increasing the apparent gravitational attraction and attraction and repulsion from EM, and it's observer dependent. When contributions from charge and angular momentum significantly diverges from the standard Newtonian predictions, the Kerr Metric is needed to account for charge, spin, and frame dragging.
Is that you or Tosin Abasi on the outro?
Haha that's my own track! I do love Tosin's music though so the influence is there :D
@@ParthGChannel well done. That's a really good sound.
numerical models predictions
We need to make your clone by ai and distribute to science classes all around the world :)
mass doesnt curve spacetime its ENERGY!!!!!
1st one😄
On cosmic scales could black holes be the "particle" of the gravity field? The black holes are the mediators of the space-time field by generating the gravity waves that propagate through the universe as they merge together.
Well every massive object can "generate" gravitational waves, even an apple. But what has been mentionned tho is the possible existence of the "graviton". A particule interpretation of gravitational waves, like for light.
@@mehdi-3763 that's what I meant, the black hole is the graviton we're just looking on the wrong scale
@@lordarathres the black hole isnt the graviton, its what is producing the graviton
Nice zit
Spacetime should not be called spacetime. Furthermore space does not bend. Space is nothing and you can't bend nothing. What is being bent is the electromagnetic web/pool that everything in the universe is sitting in.. Perhaps we should call spacetime what Tesla and Maxwell called it - The Ether.