Please do videos about 1. String theory 2. Loop quantum gravity 3. Dark energy and matter 4. Things like do you believe the unuverse is expanding in an accelerating speed/ decelerating speed/it gets pulled back by it's own gravity? Please reply if you see this, THANKS!
Dominic. I discovered your channel 10mins ago. I love your video. I will definetly support you on patron. I wish you the best for making us realise how exiting our situation is!!
Willie Combs first of all the spinning of the earth doesn't do anything cuz it isn't accelerating therefore the measurements taken in our reference frame are just as valid as those taken in a "stationary" reference frame
Willie Combs and for the expansion and contraction of earth, I'm going to assume you mean plate tectonics. And if u did some research you would see that ligo was built in geographically inactive regions. Fite me (lol jk)
ScutFarcus That's not actually how they sound. Because there was no sound there. This is just converted into sound waves, it's more like an artist's rendition. Not the real thing. If you were even hundred light years closer to that, it'd have ripped every single molecule in your body apart.
I am just asking, but if so ("it'd have ripped every single molecule in your body apart"), why didn't this wave destroy other celestial bodies on its way to us? Wouldn't we be able to observe them by now? (Sorry for bad English, I am not native)
The two animation videos that you made are really very well done. As someone who is interested in astophysics but too lazy to read articles, I will definitely say that this is by far one of the best productions on RUclips that I have seen. You should definitely keep this up! And please make the map of mathematics, I will be looking forward to it.
This channel makes me like physics, I couldn't understand physics in my school, but from this video, I became more excited for learning physics. Thank you so much!
Great video, really well explained! Your animation system is fantastic. That last zoom out at the end made me wonder if you'd make your final image available on flickr or something like you did with the map of physics? And I'm defninitely in favour of a map of mathematics video too :)
Thank you for the production of this film. I, a physics graduate some 40 years ago and then never toughed it again, do enjoy watching the film and find it very easy to understand which has raised my interests again. I was very interested in special and general relativity as well as quantum mechanics during my study time. Hope you can produce more short films on these two very interesting subjects.
Just want to make a correction. The name of the town in Louisiana that has the LIGO detector is Livingston, without an 'e'. with the last syllable pronounced like "stun" not "stone". I know about this because during my homeless days after getting flooded out by Hurricane Katrina a bit down the Mississippi River - in the locale of where the British military had a very rough time in Jan, 1815 - I stayed in Livingston (anything out in the boonies in Livingston Parish is called "Livingston") for a few months. While I was staying there, Hurricane Gustave hit, but the water didn't get high enough to flood me, but in 2016 there was a massive rain event that did flood the area. I had moved to another town in Louisiana (when I finally bought a replacement home) in nearby Washington Parish, and it got hit with an earlier massive rain event also in 2016 , but since I was wise to buy on "high ground", I didn't flood. I studied engineering at Louisiana State University, and I remember a physics student in my freshmen dorm telling me about how LSU was big into the study of gravity waves; obviously, this led to nearby Livingston getting the LIGO facility. Otherwise, Livingston is about the furthest place culturally one could imagine from cutting-edge astrophysical research (think Duck Dynasty, LOL!)
Duuuuude I can't believe it's been almost 2yrs since they detected gravitational waves! I remember hearing about it as if it was yesterday. I had no idea that the LIGO detectors had been turned on just 2 days before they received their first signal. Amazing. Another awesome video, Dominic. Can't wait for the next one!
I have to challenge you on the 'infinite density' bit. From a quick google... "You can use the Schwarzschild radius to calculate the density of the black hole - i.e., the mass divided by the volume enclosed within the Schwarzschild radius. This is roughly equal to (1.8x1016 g/cm3) x (Msun / M)2". Scott Manley describes the possibility of a black hole having a lower average density than water, i.e. it would theoretically float. (edit: I was originally a bit terse. This is actually a nice piece of work and I enjoyed watching it. Thanks)
On the day they announced that they found them, I got so excited that I kept dancing around the room. My friends asked me what happened and when I told them, they were like 'meh'. They didn't know how impactful that was on the human race and its future. But I wore a smile all day. Also I'm gonna use gravitational waves in my novel, now that would be fun. Maybe I can explore and think about all things this discovery might lead us to.😂
The explanation of where the first detected gradational wave was thrilling. Would it be worth it to make an update with the subsequent notable discoveries? Or are such explanations of the project's discoveries found somewhere, collected?
I think you can do inline edits to the video -- like an overlay that says "Errata: the correct date is September 14, 2015". I'm not sure how to do that, but I've seen it.
Few days ago we had a guest lecture in our college about this LIGO and gravitational waves given by some guy who actually worked for it and was a professor at Caltech. But your explanation about this topic was way better than his.☺
Such a cool story and exciting discovery. Funny that you drew little highlights on the black holes though :) Can't wait for all the neat stuff to come out of this new tool.
I read the New York Times article on the discover of gravitational waves to my 8 year old and then showed him this video. He loved it. And thank you for the education!
WE wouldn't have missed the signal, it's a rotating blackhole pair. They're constantly sending out that wave pattern, and it's effecting us ever so slightly still.
This video is so well done and the subject is so mind blowing. The possibilities are so exciting. I actually welled up a little bit with emotion. Well done!
*The case of mistaken identity* please do not remove this comment! The LIGO (Laser Interferometer Gravitational-Wave Observatory) project when analyzed is actually a seismic device which measures vibration in the Sub atomic scale. The reported chirp signal detection that is declared to be gravitational wave could be a signal related to quantum noise. *What is quantum noise?* Quantum noise may be observed in any system where conventional sources of noise (industrial noise, vibrations, fluctuations of voltage in the electric power supply, thermal noise due to Brownian motion, etc.) are suppressed and yet random vibration can still be detected. This phenomenon is considered to be part of the ‘quantum foam’ that is ever present, which cannot be filtered out. This being a reality of the physical world, *it becomes plausible that the chirp (gravitational waves) is actually related the quantum noise phenomenon and not with a cosmic event, such as black holes a neutron stars.* *What is the Quantum foam?* Quantum foam or spacetime foam is the fluctuation of spacetime on very small scales due to quantum mechanics. The idea was devised by John Wheeler in 1955. Evidence for it was predicted back in 1947 by Dutch physicists Hendrik Casimir and Dirk Polder. Fermilab senior experimental physicist Don Lincoln explained the so-called "Casimir Effect" and its effects have been measured. This RUclips video demonstrates what quantum Noise looks like ruclips.net/video/PJHAXQJMfxE/видео.html *Conclusion The LIGO detection is an exercise in bias confirmation.* The LIGO chirps are actually signals extracted from sea of Quantum noise and misinterpreted as gravitational waves. The LIGO chirp www.google.com/imgres?imgurl=https%3A%2F%2Fwww.ligo.caltech.edu%2Fsystem%2Favm_image_sqls%2Fbinaries%2F45%2Fmedium%2Fligo20160211a.jpg%3F1455158181&imgrefurl=https%3A%2F%2Fwww.ligo.caltech.edu%2Fimage%2Fligo20160211a&docid=Er2JBzynHDi6JM&tbnid=l3PJOKZ9pFJdZM%3A&vet=1&w=480&h=600&hl=en-us&client=safari&bih=722&biw=1112&ved=2ahUKEwiVspnTmbrmAhWJMd8KHVmHDlsQxiAoAHoECAEQFA&iact=c&ictx=1
Great video. Very well explained. I noticed two little mistakes (sorry to be a killjoy) : the beamsplitter should be turned 90 degrees. And the laser bounces back off the suspended mirrors that are "in" the arm of the interferometer.
wow, that's the amount of energy we need if humankind would like to broadcast the location of earth to the whole universe. no wonder there's no alien found so far.
City of Stars 😭harvest enormous too much help ?how much doe we need?😜we all have way too much if there ❻tintillion miles in all directions in space for the universe size And that not all finite as universe is there is 50qintillion Atoms known and of unknown ones there has to be more universe has finite the space is infinite in volume is empthy
Fuck nuclear energy, let’s just bash black holes together and rule the universe!! In other notes, black hole energy is a thing. If I remember correctly, you can harness the energy from a super small black hole (massively small as well). The only difference is that that method obviously doesn’t produce as much energy. It’s only a few steps behind fusion though in terms of powering shuttles for space travel. AND it’s hella cool.
There’s another issue with the methods used to extract (chirp ) Gravitational waves signal in the LIGO system. Conventionally, signals detection systems are designed to have a very pronounced contrast from the background, also the measurement are made in real time, In other words, the systems have a Signal to noise ratio threshold which is high, that is, the detected signal stand high above Background noise. In the LIGO system it is quite different. In the LIGO system the noise is what is being analyzed. The reason is that the theorized signal is so small that it resides within the sea of noise ( quantum domain). The process; lasers device Picks-up the fluctuation of motion which are infinitesimally small, in the scales less then sub-atomic. The scale is considered to be quantum environment, this environment which is replete with quantum fluctuations known as a quantum noise also called the quantum foam. The expected signal is there by embedded within a Sea of quantum noise. And whitin this sea of noise the signal must be extracted. In essence the scientists have entered the realm of the quantum, and are listening to the (Sizzles) pop, crackle and chirps of this world. Gravitational Wave are assumed to be embedded within this noise and the only way to extract or separate from the matrix of noise is to use filters. The filter is not an analog device but it’s a software filters, analogous to search engine Program which allows searching for a particular wave patterns. In order to implement this scheme the first thing the LIGO system does is to record the noise (vibrations) and convert them into a huge database, once created and stored, then a search program with its pre-described patterns called templates is used to Scan the database comparing the templates against raw data, essentially looking for a Match (hit). How is templates created? Templates are created by using the expected theoretical wave signature information, which is coded Digitally, and this templates is what is used to do comparisons search of the raw data. It is reported that the templates signatures number in the billions. “The different signal templates are, one by one, compared against this data set, and, for each template, a significance value is computed. This value tells us how likely it is that a gravitational wave with the template parameters exists in the data.” But here’s the issue, the LIGO system picks up more than expected And they will never tell the Public this; *Did you know that LIGO system is receiving signals that number in the hundreds and they classify them as “glitches” ! And Scientist have no idea the sources of these so-called glitches. Could it be that this GW chirp is actually just a glitch which was misinterpreted to be a gravitational waves. Please note the excerpts of the article which follows; *LIGO glitches are detector events of unknown origin whose frequency spectrum does not look like the expected gravitational wave signals. I don’t know exactly how many of those the detector suffers from, but the way they are numbered, by a date and two digits, indicates between 10 and 100 a day. LIGO uses a citizen science project, called “Gravity Spy” to identify glitches. There isn’t one type of glitch, there are many different types of them, with names like “Koi fish,” “whistle,” or “blip.*
I like to think that this old wave will change the future not only by it's effects but also by the knowlege about it. maybe it made two physicists become a happy couple :)
Great job, enjoying the videos. A request: please create a playlist for the early lecture series you posted on quantum annealers; these make it easy to watch the videos in a series in proper order. Thanks and again well done!
Virgo is just outside of Pisa, a long way from Trento. Have you looked into KAGRA, Japan's underground cryogenic plan in the kamioka mines? It's really cool (pardon the pun), and of course eLISA too and the second event you mention, GW151226 has a lower total SNR than 150914, with two lower mass black holes. And of course the date thing. otherwise a really nice video!
Hey thanks Brynley, excellent points, I'll be sure to add them to the errata in the description. And yeah I didn't have the time to add in the other two detectors. eLISA especially is so exciting, I remember the original LISA project was supposed to launch in 2012, but then it kept getting it's funding reduced, I'm hoping that this discovery gives more impetus i.e. cash to the project. Cheers dude!
DominicWalliman for eLISA, 2016 was a good year. the Lisa pathfinder mission did its thing, testing tech for the main mission and it absolutely exceeded expectations. As a result, the ESA has upped the missions priority. looking to launch in about 10 years now!
Great videos Dominic.I just found your channel and I already subscribed it.Some much valuable stuff covered in such short time with great illustrations..Simply my dream explanation videos.
If the gravitational waves can bend and morph light..can't it bend and morph matter as well? If so, wouldn't the readings be off as the laser, building and the entire earth are 'bending' together? (How can you measure something that is changing with a scale that is changing exactly like it?)
I find it kind of hard to believe that the LIGOs have eliminated sources of errors so effectively that the only things that make the lasers out of phase are gravitational waves. But I guess I’m not in the field and people smarter than me work on these stuff.
Learnt something new and amazing today. Dominic, I immensely admire your work. Watched your enlightening TEDx video a while ago and found your channel. The world needs more of excellent science communicators like you. Keep up the good work. :)
Great job again 👍 You are explaining these complex things in just few minutes. I have understood your efforts and time in making these videos. Please try to post one video a month. That will be really great stuff for us. Finally, as usual Fabulous Work 👌
Thank you so much for making these videos! I'm a visual leaner and you made some many things click that four years in college failed to connect. thank you, i've really enjoyed your maps.
Message to Mr. Dominic---- You're saying us thanks !!!! You need not. You let us understand the deepest mysteries of the most mysterious universe. It's us who should tell you thanks. So.... thanks very much. 😇😇😇😇😀😀😀😀
Thank you for putting the work into explaining these things to us. I have just discovered your profile and watched 3 video's. You are definitively in the league of exceptionally smart RUclipsrs making science awesome again. I come directly from your Patreon page. As a student i was only able to make a symbolic donation - but i hope others will do that to so we can enjoy more of your video's. Thanks from Denmark!
I can't see how they managed to figure out the distance to the source and the masses of colliding black holes from a short "blurp" that was only a few wavelengths across.
It's amazing how you manage to order the information, it's really useful, please keep doing this kind of videos they are a great help for understanding all sorts of things Thanks from Chile :)
Excellent video in addition to your Subject Mapping videos. Being able to visualize these otherwise complex ideas is a fantastic opportunity for the intellectually curious and for anyone approaching the subjects from an accessible perspective or for a first time introduction. Thank You!
Man, that's incredible how you explained this. I was always amused by gravitational waves, but I never understood completly. Now I do, at least the basics and how it works and why it exist. Thanks and I hope you to make more videos like this.
You talk about fascinating topics, I love your work! Little question, when you mention the size of black holes around 1:33 (which seems to mean they cannot have infinite density) were you talking about their Schwarzschild radius (point of no return)?
Unless I misunderstood - Isn't it astronomically coincidental that we just happened to invent this measuring device just as the wave from that event reached us? That blows my mind...
Hi Dominic, amazing video! love the animation style and the way you make some subjects like this comprehensible. I really love physics but I have trouble understanding them. Hope to see more of videos like this in the future :)
Thank you, Dominic. I am not educated in the right areas nor sophisticated natively enough to understand the details of spacetime and other aspects of physics. I especially wonder at how the detection of a gravitational wave can lead to the conclusions scientists have drawn from it! I am grateful for your work to help us lay people stay in touch with the advance of astronomical and other sorts of physics (I loved the Map of Physics).
Brilliant video. Thank you. A couple of questions: 1. Are gravitational waves red shifted by the expansion of the universe? 2. Is the propagation velocity constant, irrespective of the source velocity, e.g.like EM waves?
Greatest explanation Ive seen on the subject. How do you make those videos??? Need to make a video to explain something much easier and something like that would help me lots!! Greetings from Peru!
I like your videos very much, and the way you map a subject like that both graphically and verbally is phenomenal. In this specific video, you mentioned Einstein's equation "E=mc^2", but you also mentioned that the black holes collided at 0.5 the speed of light, which means that it's momentum is significant, and the full equation should be used, no? Is this equation still holds for General relativity as well, especially close to a space bender like a black hole? Anyway, thank you for sharing your amazing videos with the world.
I was actually hoping that the wave we detected would be traveling at FASTER than the speed of light. I mean, I thought only objects moving THROUGH spacetime were limited by light-speed not spacetime itself - which is how warp-speed travel is thought to be achieved.
your videos are awesome dominic. plz keep going like this and keep on making physics videos like this one... can you please try to create next video on why there is more observable matter than antimatter although big bang created equal amount of matter and antimatter.
I loved this video, specially after yesterday's announcement about two neutron stars merging and generating an enormous amount of gravitational waves together with most forms of electromagnetic energy. After detecting the waves, the three laser interferometers that you mentioned were used to quickly map, as you explained, the space quadrant where the event took place. This information was passed to astronomers around the world, and in coordinated effort, all kinds of telescopes were soon pointing and gathering data on this epic event. You provided a great explanation of how this technology filled a gap, and how newly obtained data will bring us closer to the understanding of the universe. Thanks.
You started the video with a conundrum for many (including myself): spacetime and the 'fabric of spacetime'. Could you perhaps show us how to imagine spacetime? After all these waves are altering this thing called spacetime.
Hey very nice video again :) I have a question concerning what you say at 0:58. You say it's 1.3 B LY away and that is happened 1.3 B years ago. But don't you need to take into account the expansion of the universe?
Yes absolutely, I totally overlooked that so thanks for pointing it out. This evening I tried to figure out how long ago it actually happened and didn't quite manage because I think I need to know the expression for the acceleration of the Universe. But I think you can ball park the number from the redshift which was about 0.1 (journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.061102) This means that it was about 10% closer in time to us than 1.3 billion years, so about 1.18 billion years. I think this is right but let me know if you know any better :D
this is by far the best explanation i have seen so far on the topic.. very well done..
Mikael Wendt 😢i want education i am hurt i want to goe to university yeah 😭hello give me good explanation ?47584554(╥╯θ╰╥)３２５７８５６=
# 312.
Please do videos about
1. String theory
2. Loop quantum gravity
3. Dark energy and matter
4. Things like do you believe the unuverse is expanding in an accelerating speed/ decelerating speed/it gets pulled back by it's own gravity?
Please reply if you see this, THANKS!
What about some innovative idea???
Nice suggestion!
If you want videos like that check out PSB space time
Not sponsors
Astrophysicists have only one tool in their kit-the hammer of gravitational theory. To them everything is Mass.
yeah, they are all awesome topics!!!
These are some fantastic visualizations. Great video!
Yes, they are representative visualizations, not real observations. Keep your pseudo-science out of science.
cant disagree
Dominic. I discovered your channel 10mins ago. I love your video. I will definetly support you on patron. I wish you the best for making us realise how exiting our situation is!!
Thanks so much man! :D
Willie Combs the pendulum no?
Willie Combs first of all the spinning of the earth doesn't do anything cuz it isn't accelerating therefore the measurements taken in our reference frame are just as valid as those taken in a "stationary" reference frame
Willie Combs the pendulums don't defy physics they act as insulation from any perturbations
Willie Combs and for the expansion and contraction of earth, I'm going to assume you mean plate tectonics. And if u did some research you would see that ligo was built in geographically inactive regions. Fite me (lol jk)
So that's what it sounds like when two massive black holes collided huh? Bwoop!
After a measly 1.3 BILLION years of elongation and reduction in energy. Nothing much. BWWWWOOOOOP!
ScutFarcus That's not actually how they sound. Because there was no sound there. This is just converted into sound waves, it's more like an artist's rendition. Not the real thing. If you were even hundred light years closer to that, it'd have ripped every single molecule in your body apart.
I am just asking, but if so ("it'd have ripped every single molecule in your body apart"), why didn't this wave destroy other celestial bodies on its way to us? Wouldn't we be able to observe them by now? (Sorry for bad English, I am not native)
@@thatmomentwhen9718 well if they got turned into space dust there is no real way for us to discover them
mindblowing explanation!!
2019 here
Black hole photograph is out
Nice
The two animation videos that you made are really very well done. As someone who is interested in astophysics but too lazy to read articles, I will definitely say that this is by far one of the best productions on RUclips that I have seen. You should definitely keep this up! And please make the map of mathematics, I will be looking forward to it.
This channel makes me like physics, I couldn't understand physics in my school, but from this video, I became more excited for learning physics. Thank you so much!
Great video, really well explained! Your animation system is fantastic. That last zoom out at the end made me wonder if you'd make your final image available on flickr or something like you did with the map of physics? And I'm defninitely in favour of a map of mathematics video too :)
Brilliant. When you played that sound, I passed out from awe.
Having great knowledge on some topic and being able to explain it exceptionally well is a different thing. Very few can do it like you. Thanks!
the way you explain and illustrate all these things is just amazing, please make more of these animation videos :D
Thank you for the production of this film. I, a physics graduate some 40 years ago and then never toughed it again, do enjoy watching the film and find it very easy to understand which has raised my interests again. I was very interested in special and general relativity as well as quantum mechanics during my study time. Hope you can produce more short films on these two very interesting subjects.
Just want to make a correction. The name of the town in Louisiana that has the LIGO detector is Livingston, without an 'e'. with the last syllable pronounced like "stun" not "stone". I know about this because during my homeless days after getting flooded out by Hurricane Katrina a bit down the Mississippi River - in the locale of where the British military had a very rough time in Jan, 1815 - I stayed in Livingston (anything out in the boonies in Livingston Parish is called "Livingston") for a few months. While I was staying there, Hurricane Gustave hit, but the water didn't get high enough to flood me, but in 2016 there was a massive rain event that did flood the area. I had moved to another town in Louisiana (when I finally bought a replacement home) in nearby Washington Parish, and it got hit with an earlier massive rain event also in 2016 , but since I was wise to buy on "high ground", I didn't flood.
I studied engineering at Louisiana State University, and I remember a physics student in my freshmen dorm telling me about how LSU was big into the study of gravity waves; obviously, this led to nearby Livingston getting the LIGO facility. Otherwise, Livingston is about the furthest place culturally one could imagine from cutting-edge astrophysical research (think Duck Dynasty, LOL!)
Duuuuude I can't believe it's been almost 2yrs since they detected gravitational waves! I remember hearing about it as if it was yesterday. I had no idea that the LIGO detectors had been turned on just 2 days before they received their first signal. Amazing. Another awesome video, Dominic. Can't wait for the next one!
I have to challenge you on the 'infinite density' bit. From a quick google... "You can use the Schwarzschild radius to calculate the density of the black hole - i.e., the mass divided by the volume enclosed within the Schwarzschild radius. This is roughly equal to (1.8x1016 g/cm3) x (Msun / M)2". Scott Manley describes the possibility of a black hole having a lower average density than water, i.e. it would theoretically float.
(edit: I was originally a bit terse. This is actually a nice piece of work and I enjoyed watching it. Thanks)
On the day they announced that they found them, I got so excited that I kept dancing around the room. My friends asked me what happened and when I told them, they were like 'meh'. They didn't know how impactful that was on the human race and its future. But I wore a smile all day. Also I'm gonna use gravitational waves in my novel, now that would be fun. Maybe I can explore and think about all things this discovery might lead us to.😂
The explanation of where the first detected gradational wave was thrilling. Would it be worth it to make an update with the subsequent notable discoveries? Or are such explanations of
the project's discoveries found somewhere, collected?
wait what? wasn't the first signal detected in September 14 2015...
Oh balls, you are totally right! I got the month wrong! I'll add an errata. Thanks for pointing this out Amit.
DominicWalliman You are welcome, keep up with the big picture view of these kind of topics. And wish you a Happy new year 2017
Thanks! And happy new year to you too!
I think you can do inline edits to the video -- like an overlay that says "Errata: the correct date is September 14, 2015". I'm not sure how to do that, but I've seen it.
oh wow you just haaaaaaaaaaaad to ruin it i started celebrating because I was born on November 14
Few days ago we had a guest lecture in our college about this LIGO and gravitational waves given by some guy who actually worked for it and was a professor at Caltech.
But your explanation about this topic was way better than his.☺
Such a cool story and exciting discovery. Funny that you drew little highlights on the black holes though :) Can't wait for all the neat stuff to come out of this new tool.
This is simply amazing! how can you dislike this??!? Please never stop these videos. EXPLAIN TO ME EVERYTHING!
I read the New York Times article on the discover of gravitational waves to my 8 year old and then showed him this video. He loved it. And thank you for the education!
That is awesome! Thanks for letting me know :)
WE wouldn't have missed the signal, it's a rotating blackhole pair. They're constantly sending out that wave pattern, and it's effecting us ever so slightly still.
I wrote a song about this dedicated to a physicist I knew named Joseph Weber - who first tried to find these waves. May he RIP.
This video is so well done and the subject is so mind blowing. The possibilities are so exciting. I actually welled up a little bit with emotion. Well done!
The best simple comprehensive explanation. Kudos to the great work.
Its crazy how good you are in explaining this....
I was literally nearly to cry because it’s so fascinating
Its 2017 now and the physics nobel prize goes to the scientists at Virgo for their work on gravitational waves!
*The case of mistaken identity* please do not remove this comment!
The LIGO (Laser Interferometer Gravitational-Wave Observatory) project when analyzed is actually a seismic device which measures vibration in the Sub atomic scale. The reported chirp signal detection that is declared to be gravitational wave could be a signal related to quantum noise.
*What is quantum noise?*
Quantum noise may be observed in any system where conventional sources of noise (industrial noise, vibrations, fluctuations of voltage in the electric power supply, thermal noise due to Brownian motion, etc.) are suppressed and yet random vibration can still be detected. This phenomenon is considered to be part of the ‘quantum foam’ that is ever present, which cannot be filtered out.
This being a reality of the physical world, *it becomes plausible that the chirp (gravitational waves) is actually related the quantum noise phenomenon and not with a cosmic event, such as black holes a neutron stars.*
*What is the Quantum foam?*
Quantum foam or spacetime foam is the fluctuation of spacetime on very small scales due to quantum mechanics. The idea was devised by John Wheeler in 1955. Evidence for it was predicted back in 1947 by Dutch physicists Hendrik Casimir and Dirk Polder. Fermilab senior experimental physicist Don Lincoln explained the so-called "Casimir Effect" and its effects have been measured.
This RUclips video demonstrates what quantum Noise looks like ruclips.net/video/PJHAXQJMfxE/видео.html
*Conclusion The LIGO detection is an exercise in bias confirmation.*
The LIGO chirps are actually signals extracted from sea of Quantum noise and misinterpreted as gravitational waves.
The LIGO chirp www.google.com/imgres?imgurl=https%3A%2F%2Fwww.ligo.caltech.edu%2Fsystem%2Favm_image_sqls%2Fbinaries%2F45%2Fmedium%2Fligo20160211a.jpg%3F1455158181&imgrefurl=https%3A%2F%2Fwww.ligo.caltech.edu%2Fimage%2Fligo20160211a&docid=Er2JBzynHDi6JM&tbnid=l3PJOKZ9pFJdZM%3A&vet=1&w=480&h=600&hl=en-us&client=safari&bih=722&biw=1112&ved=2ahUKEwiVspnTmbrmAhWJMd8KHVmHDlsQxiAoAHoECAEQFA&iact=c&ictx=1
brilliant video - A level student in chemistry,biology and philosophy but have such an ongoing love for Physics , really appreciate these videos!
Great job - I bet they're a lot more work but the animated videos are a *huge* step up in engagement for me as a viewer. Subscribed.
JUST WOW.....THE MOST INTERESTING THING I HAVE SEEN IN MY ENTIRE LIFE WITH BEST POSSIBLE EXPLANATION.
Thanks much for this - very good explanation, great visualizations. Great job.
Great video. Very well explained.
I noticed two little mistakes (sorry to be a killjoy) : the beamsplitter should be turned 90 degrees. And the laser bounces back off the suspended mirrors that are "in" the arm of the interferometer.
2:29
wait
hold up
three solar masses worth of energy? as in three times the sun's mass converted to energy?
Jesus, that's a biiiiiiig number
yup :D
Zymoox fucking wasteful black holes smdh
wow, that's the amount of energy we need if humankind would like to broadcast the location of earth to the whole universe. no wonder there's no alien found so far.
City of Stars 😭harvest enormous too much help ?how much doe we need?😜we all have way too much if there ❻tintillion miles in all directions in space for the universe size And that not all finite as universe is there is 50qintillion Atoms known and of unknown ones there has to be more universe has finite the space is infinite in volume is empthy
Fuck nuclear energy, let’s just bash black holes together and rule the universe!! In other notes, black hole energy is a thing. If I remember correctly, you can harness the energy from a super small black hole (massively small as well). The only difference is that that method obviously doesn’t produce as much energy. It’s only a few steps behind fusion though in terms of powering shuttles for space travel. AND it’s hella cool.
There’s another issue with the methods used to extract (chirp ) Gravitational waves signal in the LIGO system.
Conventionally, signals detection systems are designed to have a very pronounced contrast from the background, also the measurement are made in real time, In other words, the systems have a Signal to noise ratio threshold which is high, that is, the detected signal stand high above Background noise. In the LIGO system it is quite different. In the LIGO system the noise is what is being analyzed. The reason is that the theorized signal is so small that it resides within the sea of noise ( quantum domain).
The process; lasers device Picks-up the fluctuation of motion which are infinitesimally small, in the scales less then sub-atomic. The scale is considered to be quantum environment, this environment which is replete with quantum fluctuations known as a quantum noise also called the quantum foam. The expected signal is there by embedded within a Sea of quantum noise. And whitin this sea of noise the signal must be extracted.
In essence the scientists have entered the realm of the quantum, and are listening to the (Sizzles) pop, crackle and chirps of this world.
Gravitational Wave are assumed to be embedded within this noise and the only way to extract or separate from the matrix of noise is to use filters. The filter is not an analog device but it’s a software filters, analogous to search engine Program which allows searching for a particular wave patterns. In order to implement this scheme the first thing the LIGO system does is to record the noise (vibrations) and convert them into a huge database, once created and stored, then a search program with its pre-described patterns called templates is used to Scan the database comparing the templates against raw data, essentially looking for a Match (hit).
How is templates created? Templates are created by using the expected theoretical wave signature information, which is coded Digitally, and this templates is what is used to do comparisons search of the raw data. It is reported that the templates signatures number in the billions.
“The different signal templates are, one by one, compared against this data set, and, for each template, a significance value is computed. This value tells us how likely it is that a gravitational wave with the template parameters exists in the data.”
But here’s the issue, the LIGO system picks up more than expected And they will never tell the Public this; *Did you know that LIGO system is receiving signals that number in the hundreds and they classify them as “glitches” ! And Scientist have no idea the sources of these so-called glitches. Could it be that this GW chirp is actually just a glitch which was misinterpreted to be a gravitational waves. Please note the excerpts of the article which follows;
*LIGO glitches are detector events of unknown origin whose frequency spectrum does not look like the expected gravitational wave signals. I don’t know exactly how many of those the detector suffers from, but the way they are numbered, by a date and two digits, indicates between 10 and 100 a day. LIGO uses a citizen science project, called “Gravity Spy” to identify glitches. There isn’t one type of glitch, there are many different types of them, with names like “Koi fish,” “whistle,” or “blip.*
I like to think that this old wave will change the future not only by it's effects but also by the knowlege about it. maybe it made two physicists become a happy couple :)
great way of explaining with the help of your way of animation .... it helps me remember for a longer time
Very nice. You look like a sympathetic guy with very good voice. Plus that visualization. Just great job man. Keep continue with that. Thumbs up
Great job, enjoying the videos. A request: please create a playlist for the early lecture series you posted on quantum annealers; these make it easy to watch the videos in a series in proper order. Thanks and again well done!
WOW!!!
Loved your video , just like the last one. Keep on doing this kind of material. Its beautiful.
Thanks for the translation and the lessen you make the Einstein theory of relativity so easy for understand and very simple .respect form Algeria 🇩🇿
Amazing video, keep this up! :) your editing is becoming really great as well.
Virgo is just outside of Pisa, a long way from Trento. Have you looked into KAGRA, Japan's underground cryogenic plan in the kamioka mines? It's really cool (pardon the pun), and of course eLISA too
and the second event you mention, GW151226 has a lower total SNR than 150914, with two lower mass black holes. And of course the date thing.
otherwise a really nice video!
Hey thanks Brynley, excellent points, I'll be sure to add them to the errata in the description. And yeah I didn't have the time to add in the other two detectors. eLISA especially is so exciting, I remember the original LISA project was supposed to launch in 2012, but then it kept getting it's funding reduced, I'm hoping that this discovery gives more impetus i.e. cash to the project.
Cheers dude!
DominicWalliman for eLISA, 2016 was a good year. the Lisa pathfinder mission did its thing, testing tech for the main mission and it absolutely exceeded expectations. As a result, the ESA has upped the missions priority. looking to launch in about 10 years now!
Super informative and very well explained!! The animations are on point! Keep them coming :)
Great videos Dominic.I just found your channel and I already subscribed it.Some much valuable stuff covered in such short time with great illustrations..Simply my dream explanation videos.
You should find a service that'll let you sell these posters, they are, as you videos are, amazing!
Hey thanks! Yeah I sorted that out, I sell them on redbubble, the link is in the description if you are interested.
If the gravitational waves can bend and morph light..can't it bend and morph matter as well? If so, wouldn't the readings be off as the laser, building and the entire earth are 'bending' together? (How can you measure something that is changing with a scale that is changing exactly like it?)
Amazing video though!
Yamin Siddiqui watch veritasium's video about this subject he explains
watch veritasiums video as felipe suggested
Because the waves have a direction. And the LIGO detector is shaped like an L. So the wave distorts one arm of the L more than the other.
I find it kind of hard to believe that the LIGOs have eliminated sources of errors so effectively that the only things that make the lasers out of phase are gravitational waves. But I guess I’m not in the field and people smarter than me work on these stuff.
Learnt something new and amazing today. Dominic, I immensely admire your work. Watched your enlightening TEDx video a while ago and found your channel. The world needs more of excellent science communicators like you. Keep up the good work. :)
Great job again 👍 You are explaining these complex things in just few minutes. I have understood your efforts and time in making these videos. Please try to post one video a month. That will be really great stuff for us. Finally, as usual Fabulous Work 👌
Thank you so much for making these videos! I'm a visual leaner and you made some many things click that four years in college failed to connect. thank you, i've really enjoyed your maps.
Message to Mr. Dominic----
You're saying us thanks !!!! You need not. You let us understand the deepest mysteries of the most mysterious universe. It's us who should tell you thanks. So.... thanks very much. 😇😇😇😇😀😀😀😀
Thank you for putting the work into explaining these things to us. I have just discovered your profile and watched 3 video's. You are definitively in the league of exceptionally smart RUclipsrs making science awesome again. I come directly from your Patreon page. As a student i was only able to make a symbolic donation - but i hope others will do that to so we can enjoy more of your video's. Thanks from Denmark!
This is amazing! A small Channel really worth supporting
Thanks sir for the basic definition in a crisp manner
I can't see how they managed to figure out the distance to the source and the masses of colliding black holes from a short "blurp" that was only a few wavelengths across.
this is really good. it's simple and clear and elegant. i really love your videos
Absolutely a top notch production. Thank you, very well done.
Brilliant, thanks very much and please keep it up !! And a happy new year !
It's amazing how you manage to order the information, it's really useful, please keep doing this kind of videos they are a great help for understanding all sorts of things
Thanks from Chile :)
Thanks for the great videos, and also for being transparent about errors & for following up. Keep up the good work!
I should express my sincere gratitude for explaining such a wonderful and astonishing simple way. It's pure happiness to watch your videos.
Virgo is near Pisa in Italy but in the map is showed Trento. Great video anyway :)
Excellent video in addition to your Subject Mapping videos. Being able to visualize these otherwise complex ideas is a fantastic opportunity for the intellectually curious and for anyone approaching the subjects from an accessible perspective or for a first time introduction. Thank You!
This vídeo is in my TOP 10 BEST vídeos I´v ever seen... Such interesting and educational. Thumbs up, shared and signed on this channel. Best Regards.
Man, that's incredible how you explained this. I was always amused by gravitational waves, but I never understood completly. Now I do, at least the basics and how it works and why it exist. Thanks and I hope you to make more videos like this.
You talk about fascinating topics, I love your work!
Little question, when you mention the size of black holes around 1:33 (which seems to mean they cannot have infinite density) were you talking about their Schwarzschild radius (point of no return)?
Thank you for such simplified explanation for ppl like me.. who were not curious enough in school to understand fundamentals :/
The best explanation of gravitational waves to date!
Unless I misunderstood - Isn't it astronomically coincidental that we just happened to invent this measuring device just as the wave from that event reached us? That blows my mind...
Best video on gravitational waves I've seen yet
I've missed this channel. Already loving your stuff! Thanks
Such an amazing video, you deserve much more views
Thank you so much , this made me tear up a bit 😅 really appreciate this video.
Hi Dominic, amazing video! love the animation style and the way you make some subjects like this comprehensible. I really love physics but I have trouble understanding them. Hope to see more of videos like this in the future :)
Thank you, Dominic. I am not educated in the right areas nor sophisticated natively enough to understand the details of spacetime and other aspects of physics. I especially wonder at how the detection of a gravitational wave can lead to the conclusions scientists have drawn from it! I am grateful for your work to help us lay people stay in touch with the advance of astronomical and other sorts of physics (I loved the Map of Physics).
I'm so glad I found this channel! such great physics and amazing videography. I hope to continue learning from you!!
Brilliant video. Thank you. A couple of questions: 1. Are gravitational waves red shifted by the expansion of the universe? 2. Is the propagation velocity constant, irrespective of the source velocity, e.g.like EM waves?
The speed is fixed to the speed of light. Not sure about redshifting but I presume.
Great video, very well explained, keep up the good work. We viewers appreciate it!!
Greatest explanation Ive seen on the subject. How do you make those videos??? Need to make a video to explain something much easier and something like that would help me lots!! Greetings from Peru!
Hello Sir,
I just wanted to say that your explanations are very great and I would love to see many more of them.
I like your videos very much, and the way you map a subject like that both graphically and verbally is phenomenal.
In this specific video, you mentioned Einstein's equation "E=mc^2", but you also mentioned that the black holes collided at 0.5 the speed of light, which means that it's momentum is significant, and the full equation should be used, no? Is this equation still holds for General relativity as well, especially close to a space bender like a black hole? Anyway, thank you for sharing your amazing videos with the world.
I was actually hoping that the wave we detected would be traveling at FASTER than the speed of light. I mean, I thought only objects moving THROUGH spacetime were limited by light-speed not spacetime itself - which is how warp-speed travel is thought to be achieved.
Very nicely explained. Keep it up. Keep posting more video. Thanks
Dominic, you’re a story teller of these incredible discoveries for us less than genius minds. Thanks.
your videos are awesome dominic. plz keep going like this and keep on making physics videos like this one...
can you please try to create next video on why there is more observable matter than antimatter although big bang created equal amount of matter and antimatter.
I loved this video, specially after yesterday's announcement about two neutron stars merging and generating an enormous amount of gravitational waves together with most forms of electromagnetic energy. After detecting the waves, the three laser interferometers that you mentioned were used to quickly map, as you explained, the space quadrant where the event took place. This information was passed to astronomers around the world, and in coordinated effort, all kinds of telescopes were soon pointing and gathering data on this epic event. You provided a great explanation of how this technology filled a gap, and how newly obtained data will bring us closer to the understanding of the universe. Thanks.
Really looking foward to your future videos! Really informative content just in a compact manner.
I live in Livingston Parish. It's really cool that we can do this
You started the video with a conundrum for many (including myself): spacetime and the 'fabric of spacetime'. Could you perhaps show us how to imagine spacetime? After all these waves are altering this thing called spacetime.
Pls make a video on special and general relativity, standard model! Love your channel and others like stated clearly and kurzgesagt :)
Wish I had found out of your videos earlier, they are amazing! Informative, entertaining, accurate and well made bros
Hey very nice video again :)
I have a question concerning what you say at 0:58. You say it's 1.3 B LY away and that is happened 1.3 B years ago. But don't you need to take into account the expansion of the universe?
Yes absolutely, I totally overlooked that so thanks for pointing it out. This evening I tried to figure out how long ago it actually happened and didn't quite manage because I think I need to know the expression for the acceleration of the Universe.
But I think you can ball park the number from the redshift which was about 0.1 (journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.061102) This means that it was about 10% closer in time to us than 1.3 billion years, so about 1.18 billion years. I think this is right but let me know if you know any better :D
Domain of Science Empthiness is infinite Is this true click yes or no 😢come on i detected i love you for your videos .your my soupophra
Black hole collisions make great ASMR
Keep making those videos. Very nice work. Thank you
Gosh! not even a single thing went above my head and i'm not even high. You are f*ucking awesome.
Awesome videos Dominic!
I really love the way you explain these things in combination with your animations! :)