The Vacuum Catastrophe

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PBS Space Time

PBS Space Time

Күн бұрын

Пікірлер: 2 300
@pdmorale
@pdmorale 7 жыл бұрын
I’m particle physicist and have been following your channel for over a year now. I just wanted to say that I love how your content fills the gap between oversimplified physics and the over technical approach to such fashionable subjects. Specially like what your doing with the QFT series! Love your channel!
@maestroanth
@maestroanth 7 жыл бұрын
Yes, for just ordinary sorta smart people like me that likes this stuff! :D
@onestagetospace4892
@onestagetospace4892 7 жыл бұрын
Question: is vacuum energy inaccessible, or is zero point energy inaccessible? The latter can't because it is a self-contradiction; but the first one (to exploit or create an imbalance in this equilibrium) is that something that is pursued today in particle physics? Is it merely a calculated or an observed equilibrium? Or is it something we have not found a way to measure yet?
@Ethan-qe7cr
@Ethan-qe7cr 7 жыл бұрын
I love it how you have to add "I'm a particle physicist" just to boost your ego. Arrogance at its finest.
@onestagetospace4892
@onestagetospace4892 7 жыл бұрын
As long as he gives an answer, it is fine by me. Hint...Hint ;)
@manavnaik1607
@manavnaik1607 7 жыл бұрын
Hi, I'm a librarian
@tnekkc
@tnekkc 5 жыл бұрын
It felt like I understood every word of this. That is a great illusion. Whoever is writing this is good. I am subscribing.
@MichaelTheRead
@MichaelTheRead 7 жыл бұрын
"Dwarf. Kili the Dwarf. Get it right." The entire video was fascinating and informative, but this was the cherry on top. Thank you, thank you, thank you.
@RayZde
@RayZde 5 жыл бұрын
Michael I don’t get it.
@Roboprogs
@Roboprogs 5 жыл бұрын
M C watch the last few seconds of the video where the narrator pops back at a troll-ish comment from an earlier video Er, dwarf, not troll 😉
@shakesmctremens178
@shakesmctremens178 7 жыл бұрын
"So you'll be able to knowledgeably scoff at zero point energy perpetual motion machines." What a relief. Up til now I've had to scoff gut-feelingly at perpetual motion machines.
@medexamtoolscom
@medexamtoolscom 4 жыл бұрын
Actually, there are still ways there could be perpetual motion machines. It's only "zero point energy" perpetual motion machines that you can scoff at. They just have to obey the laws of thermodynamics. For instance, if you found a cosmic string, of the infinitely long variety, that would be a de facto perpetual motion machine. It doesn't technically create energy from nowhere, for the same reason that energy wasn't DESTROYED over the course of the universe even though it's much more vacuous than it used to be, because of the consequences of infinite sets. It's infinitely long, so there's always more of it. And it would constantly be wildly wavering and chopping off pieces of itself which you could use as fuel. And a pretty rich fuel source indeed, since it would have about 1 Earth mass per kilometer of length. Another way would be if exotic (negative mass) substance was possible. You could generate mass and negative mass in pairs and then discard the negative mass as waste. That wouldn't violate thermodynamics, since there's still the same amount of mass, and it would increase entropy, it's just that it would destroy the link between increasing entropy and decreasing capacity to do work. Another way would be if it turned out there was a rotational component to dark energy. If there was, you could have an object follow a large circular path through space and gain energy each time around. Another way is if the constants of nature were not constant. If the charge of an electron changed, or the gravitational constant, or the speed of light, if these things changed over time or varied slightly over space, you could exploit this as well. Another way is if traversible wormholes were possible. Of course to do that you'd already need negative matter. But wormholes would destroy coulomb's law, because electric or magnetic field lines could disappear down the throat of a wormhole and so you no longer would be able to tell how much charge is in a box based on the electric flux integrated over the surface of the box. Meaning you could move an electric charge near the other end of a wormhole and expend less work in so doing than the increase in electric potential it would generate on the other side of the wormhole.
@patrickwilkie5576
@patrickwilkie5576 4 жыл бұрын
medexamtoolsdotcom have you read discussions of these ideas elsewhere? They all make perfect sense and are really interesting thought experiments that I hadn’t heard discussed prior.
@gnosticorderofthewisecounc1812
@gnosticorderofthewisecounc1812 4 жыл бұрын
Perpetual motion is attained when you no longer see the seperation in things, we are part of a perpetual motion machine. Quantum “mechanics” tries to make sense of this “machine” we exist in. And as far as we know, which this video supports, we can’t escape the machine. Ironically, you deny the existence of something you exist in and part of lol.
@jameslundquist3936
@jameslundquist3936 2 жыл бұрын
If the universe is an infinitely repeating cycle, wouldn't that be considered a "perpetual motion machine"?
@petarpejic1468
@petarpejic1468 2 жыл бұрын
@@gnosticorderofthewisecounc1812 "Perpetual motion is attained when you no longer see the seperation in things" how did you get to this conclusion can you elaborate? Do you have any other thoughts connected to his one that you find interesting?
@takeshiC1
@takeshiC1 6 жыл бұрын
I'm glad the professional field is as confused about this as I am
@JohnDoe-vz7ff
@JohnDoe-vz7ff 5 жыл бұрын
They're not. The vacuum energy is simply not well defined in quantum field theory. You can make it be whatever value you want it to be; it is a free parameter just like the coupling constants (fine structure constant for example) or a particles mass (electrons mass for example). You just add a constant counterterm to the Lagrangian and use it to renormalize the vacuum energy. In quantum field theory it is of no observable consequence; only in general relativity would it be important and we can't just say that it's a problem because GR exists, as we don't have a quantum theory of gravity. It's entirely possible that a complete theory of gravity would suppress the vacuum energy due to interactions between the vacuum energy density and gravity.
@jeandelenfant
@jeandelenfant 4 жыл бұрын
Professional field? What would be the particle and force of this field?
@nathanielmathews2617
@nathanielmathews2617 4 жыл бұрын
@@jeandelenfant The particle would be a lab coat and it would have a long range forced similar to gravity. That force is what powers time machines. Particulaly microwave time machines.
@treasurehunter3744
@treasurehunter3744 4 жыл бұрын
@@nathanielmathews2617 Don't microwave time machines turn things to green jello?
@nathanielmathews2617
@nathanielmathews2617 4 жыл бұрын
@@treasurehunter3744 No. Only bananas.
@355scaper
@355scaper 7 жыл бұрын
Man I really have to stop watching these before bed
@Trias805
@Trias805 7 жыл бұрын
Afraid of the dark... energy?
@kyogrix
@kyogrix 7 жыл бұрын
Inertia effect !
@creature_of_fur
@creature_of_fur 6 жыл бұрын
Who needs sleep when you can argue with yourself about the mysteries of the universe all night?
@LuisSierra42
@LuisSierra42 6 жыл бұрын
This will give you psychedelic dreams
@RayZde
@RayZde 5 жыл бұрын
This helps me sleep.
@TheEthAg
@TheEthAg 7 жыл бұрын
Whoever makes the visuals and graphics on this show is amazing.
@FairCogent
@FairCogent 7 жыл бұрын
Vacuum catastrophe sounds like it would really suck.
@lonestarlibrarian1853
@lonestarlibrarian1853 6 жыл бұрын
Yes, the end of the entirety of everything we know or could even know as the laws of the universe would probably “really suck” to say the least.
@LuisSierra42
@LuisSierra42 6 жыл бұрын
Well played sir
@jorgepeterbarton
@jorgepeterbarton 6 жыл бұрын
every nurse at A+E sees a vaccuum catastrophe at some point in their career.
@111455
@111455 6 жыл бұрын
we would be left feeling empty inside
@dublininnis9695
@dublininnis9695 5 жыл бұрын
If is sucked that badly wives would fear it.
@jumemowery9434
@jumemowery9434 5 жыл бұрын
Let me know when you think you've got it figured out.
@wewho1279
@wewho1279 4 жыл бұрын
one year.... nothing yet? oh, bummer....
@Harry351ify
@Harry351ify 4 жыл бұрын
@@wewho1279 one year and three weeks. Nothing yet.
@raybin6873
@raybin6873 3 жыл бұрын
Are you still alive?
@LuisSierra42
@LuisSierra42 3 жыл бұрын
@@raybin6873 He's probably in a superposition of states
@arpitthakur45
@arpitthakur45 3 жыл бұрын
@@LuisSierra42 a person is only alive to you when you think of him or her...other then that they are dead..
@sciemk8723
@sciemk8723 5 жыл бұрын
"Infinity - sounds a bit excessive " made my day
@SebHaugeto
@SebHaugeto 6 жыл бұрын
I really want Matt to be the host of the next version of “Cosmos”
@TheShootist
@TheShootist 3 жыл бұрын
Isaac Arthur, ftw
@BornAgain5M
@BornAgain5M 7 жыл бұрын
When you clean out a vacuum cleaner. You become the vacuum cleaner.
@Corvaire
@Corvaire 7 жыл бұрын
Wise words grasshopper! ;O)-
@thenewtalkerguy496
@thenewtalkerguy496 7 жыл бұрын
Dang That's deep
@Οδοιπόρος
@Οδοιπόρος 7 жыл бұрын
BornAgain5M Mind blown.
@jpoconnor2857
@jpoconnor2857 7 жыл бұрын
Be the vacuum.. Be the vacuum...
@josephmarsh5031
@josephmarsh5031 7 жыл бұрын
Ham sandwich walks into a bar, sees a sign that says, sorry, this bar doesn't serve food. Sandwich leaves. Sad sandwich...
@purplenanite
@purplenanite 7 жыл бұрын
If this is anything like the ultraviolet catastrophe, there's more physics coming our way.
@maxwyght1840
@maxwyght1840 7 жыл бұрын
Magenta Field The UV catastrophe was due to the premise that you can always divide energy states in half, no matter how small. This gave rise to QFT, or more specifically, to the concept of "quantas": A base measure of energy that can't be subdivided further(Put simply, you can jump from 1/2 to 1/4, because 1/3 doesn't exist). The graph in this vid is essentially the same one from the UV catastrophe, so I'm guessing that someone likely forgot this concept.
@purplenanite
@purplenanite 7 жыл бұрын
so could you, in theory, pull the same shenanigans that solved the UV catastrophe to solve this one? - I doubt it, because if it was that easy, it would be solved by now.
@massimookissed1023
@massimookissed1023 7 жыл бұрын
Max Wyght , *quanta* is the plural. *Quantas* is the Aussie airline ;)
@vacuumdiagrams652
@vacuumdiagrams652 7 жыл бұрын
It isn't quite the same, though there has been physics inspired by this sort of thing. Supersymmetry is an example. How successful supersymmetry has been is a different issue, however.
@sumsar01
@sumsar01 6 жыл бұрын
The UV catastrophe has nothing to do with QFT, but rather normal QM and it arises because the energy spectrum of light would give divergent result before harmonic oscillators where used to quantize the energy modes by Planck.
@michael3263
@michael3263 7 жыл бұрын
I love this narrator. He's a fellow powernerd. I'm also a huge fan of how the science isn't dumbed down but is still presented in such a way as to be accessible to the audience. Absolutely fantastic. 😀
@MariusRiley
@MariusRiley 3 жыл бұрын
: "The Anthropic Principle means never having to say you don't know." Dr. Gray, my physics professor when I was in college (Class of 1993)
@phillipbampton911
@phillipbampton911 3 жыл бұрын
that sounds like a "Love Story" for the fields of science
@Giantcrabz
@Giantcrabz 3 ай бұрын
it's just basic logic tho
@Master_Therion
@Master_Therion 7 жыл бұрын
Reminds me of the time I tried to vacuum my cat's fur. I thought I had it on the very gentle low setting but it was on high. That was a vacuum CATastrophe.
@somebody6433
@somebody6433 7 жыл бұрын
Thank god someone on my level around here.
@farmsalot1233
@farmsalot1233 7 жыл бұрын
Some body I was thinking the same,lol.
@rebelbeammasterx8472
@rebelbeammasterx8472 7 жыл бұрын
I see you everywhere and you always make a good joke.
@cnawan
@cnawan 7 жыл бұрын
Trust humans to find a way to giggle at the ineffable mysteries of the cosmos :3
@ObjectsInMotion
@ObjectsInMotion 7 жыл бұрын
I once got yelled at by my teacher for insisting that its should be spelled it's, whether or not it was a contraction or possesive. It was a vacuum apostrophe.
@esoh4t484
@esoh4t484 7 жыл бұрын
Even though I hardly ever know what the fuck he is talking about I find these videos so interesting
@espalorp3286
@espalorp3286 7 жыл бұрын
sciens muh nigga
@thenewtalkerguy496
@thenewtalkerguy496 7 жыл бұрын
Yea he is pretty douchey.
@oscarmike1131
@oscarmike1131 7 жыл бұрын
Cl123 lol. I get most of it, but yeah stuff like this is fascinating to me
@AspenEmrys
@AspenEmrys 7 жыл бұрын
and this is one of the easier ones to grasp. I get lost when he starts getting deep about equations. that's actually why I had to drop out of Physics 11 in high school. Teacher said I had a surprisingly intuitive understanding, but I told her I just can't handle the math. I aced Math 12 and did well with Finite Math 101 & 102 ... physics is a whole other beast I suppose
@mantis8326
@mantis8326 7 жыл бұрын
im always fried watching these
@purewaterruler
@purewaterruler 7 жыл бұрын
Could you put resources for further reading in the description
@vampyricon7026
@vampyricon7026 7 жыл бұрын
+
@haroldpenisman8693
@haroldpenisman8693 7 жыл бұрын
I thought this was going to be an episode about vacuum decay. I would love to see an episode about that
@kingblue3171
@kingblue3171 3 жыл бұрын
Haha maybe Dr. Matt 'O Dowd is dreading doing a video about it. I remember he was a guest on an episode cosmic quiries with Neil DeGrasse Tyson. When he brought up the topic , I could tell from his reaction he probably doesn't like to think about it. Vaccum Decay is pretty terrible 😳 I don't blame him
@medexamtoolscom
@medexamtoolscom 2 жыл бұрын
Your wish has been granted. Now, 4 years later. Finally you get to see the real answer after the pretentious kurzgesagt and flimsy sciencephile the ai had their whacks at it.
@jeffreydungan1377
@jeffreydungan1377 2 ай бұрын
kzbin.info/www/bejne/nZSXoauKn86cb8Usi=rxzq-DPMivzdqMLm
@BaronVonQuiply
@BaronVonQuiply 5 жыл бұрын
Every time I click on this video I'm expecting it to be about a false vacuum collapse and what a catastrophe that would be for physics as we know it.
@davidinvenio3094
@davidinvenio3094 3 жыл бұрын
I was expecting it to be pornographic. So disappointed.
@BaronVonQuiply
@BaronVonQuiply 3 жыл бұрын
@@davidinvenio3094 I remember around 10 years ago I saw an ad for a Dyson Ball and I stood there stunned, thinking _"Someone's starting a Dyson Sphere?!?"_ Imagine how disappointed I was to realize Dyson is a vacuum cleaner company.
@collection6062
@collection6062 3 жыл бұрын
its some kind of holocaust, were living the lives that we've already lost
@juzoli
@juzoli 7 жыл бұрын
This cathastrophe sounds just like the early issues with black-box radiaton, which has led to quantum physics.
@zagreb2012
@zagreb2012 5 жыл бұрын
Body 😂
@minepose98
@minepose98 5 жыл бұрын
@@zagreb2012 The radiation found only in plane's black boxes
@martinhutton6294
@martinhutton6294 4 жыл бұрын
It's ironic that the solution to the UV catastrophe problem (QM) set up the emergence of this problem.
@greywolf4272
@greywolf4272 3 жыл бұрын
@@martinhutton6294 They are basically the same problem -- and the same brute-force approach to a solution. If you start with a continuum theory you end up trying to stuff in smaller wavelengths below what the underlying physical (particulate/discontinuous) substrate can actually support. Planck's constant "fixed" the theoretical curve for the UV catastrophe (never called that at the time), but did not explain it. The Vacuum Catastrophe has less supporting data ... so the hunt for the "shortest wavelength" is currently unconfined.
@medexamtoolscom
@medexamtoolscom 2 жыл бұрын
@@greywolf4272 No, they aren't nearly the same problem.
@warren286
@warren286 7 жыл бұрын
The way I think of it: It seems like spacetime itself, at a high enough vacuum and low temperature seems to boil particles into existence.
@wewho1279
@wewho1279 4 жыл бұрын
I can live with that for now
@fss1704
@fss1704 2 жыл бұрын
yeahh, tell me more about reversibility and quantum decay... that adiabatic stuff is golden.
@AyLovTehno
@AyLovTehno 7 жыл бұрын
“The conundrum continues to perplex” is my new favourite phrase
@ravenlord4
@ravenlord4 7 жыл бұрын
So, we're back to Luminiferous aether. Sweet.
@deadsi
@deadsi 5 жыл бұрын
Ye I still think we're gonna go back to aether eventually, just under a different name, the higgs field seems like a kind of aether to me, tho I don't really understand it and I'm prolly wrong
@iExploder
@iExploder 5 жыл бұрын
Basically: dark matter.
@mitchwilson1969
@mitchwilson1969 4 жыл бұрын
Lol might as well huh?
@En_theo
@En_theo 3 жыл бұрын
We never left aether, Einstein himself admitted it after he discovered all the implication of General Relativity. Space-time is just a new, more elastic aether.
@irmese06
@irmese06 5 жыл бұрын
I wish I could "like" a second time for the magnificent appearance of the Dwarf Star at the end of the video.
@UrJustSick
@UrJustSick 7 жыл бұрын
Love trying to predict when he'll finish on... Pause... In spacetime.
@thenewtalkerguy496
@thenewtalkerguy496 7 жыл бұрын
With his creepy spider hands.
@Tomyb15
@Tomyb15 7 жыл бұрын
I'm often bamboozled when I play that game
@j-man72b72
@j-man72b72 7 жыл бұрын
About 6 seconds prior to I'm like "Oh, here it comes..."
@shirleymason7697
@shirleymason7697 7 жыл бұрын
His hands are the evolved flappers, fins, wings, like all of ours. Most remindful of flappers. One can visualize long evolution in all of us if you think about it when you REALLY watch someone - anyone.
@mikeclarke952
@mikeclarke952 7 жыл бұрын
Que Monty Python skit: "You had a QFT? Luxury! We calculated zero vacuum field energy to infinity and we liked it."
@kumard5445
@kumard5445 5 жыл бұрын
This is the best lullaby anyone has ever sung to me. Good night!
@joelisSHI
@joelisSHI 5 жыл бұрын
I've been watching this whole series and have never had so much fun. Thank you. Learning and learning and......
@EliseLogan
@EliseLogan 7 жыл бұрын
thank you so much for this channel. It feeds my physics brain. I often have to stop the vids and think about what's being explained for a bit before I get it, and sometimes I just don't get the details - but thank you for feeding my brain.
@SupLuiKir
@SupLuiKir 7 жыл бұрын
If the concept of Planck time means that time is quantized, that means that 1) there's an upper limit to frequency equal to the inverse of twice the Planck duration, or ~9.28 x 10^42 Hz, which would allow a particle to oscillate between the wave's critical points in alternating consecutive instants, with no time to exist in any other phase of its wave function, or else it'd effectively have a lower energy since the waveform doesn't exist except at two specific phases, so those two slices of the waveform would be its new critical points. Energy is also quantized, so the only phases that could exist are those that align with one of energy levels below its actual energy level. (If you're showing this comment next episode, it'd be advised to come up with a nice graphic to explain it, or good luck summarizing what I'm saying) 2) The integral of the vacuum energy of all possible frequencies wouldn't have an infinitesimal dt, instead it would be equal to the inverse of the Planck time. That would make it a summation instead of an integral! You'd be able to omit the energies of frequencies that can't exist in quantized time, thus bringing the total energy way down, maybe to what it should be according to our observations. I doubt it though, somebody would've thought of using quantized time by now for the Vacuum Catastrophe.
@fandomguy8025
@fandomguy8025 7 жыл бұрын
@0xFFF1 3) It would be followed by the concept of Plank length as Space and Time are one in the same.
@fandomguy8025
@fandomguy8025 7 жыл бұрын
@0xFFF1 Also, don't assume that "I won't continue this because it's so obvious someone has probably already thought of it." is necessarily true, who knows, maybe no one has, Einstien figured out gravity first and he probably found it kind of obvious. There was always a first for every scientific idea.
@Roboprogs
@Roboprogs 5 жыл бұрын
Fandom guy Newton?
@deusexaethera
@deusexaethera 5 жыл бұрын
Good point about the Plank time interval and Planck length imposing upper limits on the frequency of photons. I hadn't thought of that, but it gets rid of a potential infinity quite neatly.
@Nixontheman
@Nixontheman 7 жыл бұрын
Somewhere there is a child whose brother will bounce a ball off their head, thus setting them on a path of wonder that leads to the answers we all seek. Be patient my friends.
@stewiepid4385
@stewiepid4385 3 жыл бұрын
What type of ball?
@pizzaface117
@pizzaface117 3 жыл бұрын
@@stewiepid4385 ball-sized.
@stewiepid4385
@stewiepid4385 3 жыл бұрын
@@pizzaface117 Now I know why parents adopted my younger brother!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! LMFAO Bruh!
@ihabhassanieh1776
@ihabhassanieh1776 7 жыл бұрын
Thank you for all of these videos, Im a doctor and watching these makes me want to burn my medical degree and join you for coffee
@tnekkc
@tnekkc 5 жыл бұрын
In 1974 my physics professor with a bubble chamber was Lowell S. Brown. In 1994 he wrote the book "Quantum field theory". He told a couple jokes; 1) He had to convince a Chinese physicist he could not name his new particle a screw off, 2) The publication Physical Review was getting fatter at a rate that would make the end of a shelf of them soon exceed the speed of light. But that is ok, because there is no information.
@mickwilson99
@mickwilson99 5 жыл бұрын
"ergs per cubic cm"? Why not "horsepower per cubic furlong"?
@zagreb2012
@zagreb2012 5 жыл бұрын
Kg/m3 or J
@robertkesselring
@robertkesselring 5 жыл бұрын
Because horsepower is not a unit of energy.
@mickwilson99
@mickwilson99 5 жыл бұрын
@@robertkesselring Okay... horsepower-weeks, then.
@robertkesselring
@robertkesselring 5 жыл бұрын
@@mickwilson99 1 horsepower-week / cubic furlong = 554 ergs / cubic cm.
@yamansanghavi
@yamansanghavi 5 жыл бұрын
Horsepower x average horse age per cubic furlong
@vacuumdiagrams652
@vacuumdiagrams652 7 жыл бұрын
The thing is, quantum field theory makes _absolutely no prediction_ about the energy density of the vacuum. This is precisely because physcs is unchanged if a constant value is added to the energy density everywhere, as only energy _differences_ effect measurable outcomes. QFT is just as incapable of predicting the energy density of the vacuum as it is of predicting, say, the mass of the electron. In particular, it's not _necessary_ for the zero point energy at each mode to be hbar omega/2: that's just one particular choice that comes from using the most naive definition of QFT. One of the first thing many quantum field theory books do just before starting to calculate things is to introduce the idea of "normal ordering". This is often made somewhat vague and mysterious, but most of the time it's nothing more than saying "we'll choose the definition of the theory so that the energy of the vacuum is zero". It's not even an unnatural choice, like might be expected: there are several "obvious" quantum theories that serve as "quantum versions" of classical theories. Most of them have unphysically large values for the energy of the vacuum, but one (the one that is actually used in calculations) has an energy density of zero. Of course, the true energy of the vacuum is not zero, but ~1 J / km³. So there is certainly a mystery here, but it's not the same as a failed prediction.
@feynstein1004
@feynstein1004 7 жыл бұрын
Hmm. Wouldn't that mean the vacuum catastrophe doesn't actually exist?
@vacuumdiagrams652
@vacuumdiagrams652 7 жыл бұрын
Depends on what you mean by "catastrophe". It's not a catastrophe in the sense that we have a catastrophically failed prediction (as we did in the ultraviolet catastrophe, because the Rayleigh-Jeans theory really did predict an infinite energy density for your oven), but you could say it's a catastrophe that we don't understand at all why the vacuum energy density is what it is :)
@Tomyb15
@Tomyb15 7 жыл бұрын
I'm confused. So what was Matt referring to when he said that qft predicts a huge value and showed us the graph with all the different vacuum energies? I'm genuinely asking because I know nothing past basic classical mechanics.
@vacuumdiagrams652
@vacuumdiagrams652 7 жыл бұрын
He was showing contributions to the vacuum energy if you write down the simplest, most naive version of the quantum field theory. People sometimes do say that those are "predictions" of QFT, but using those same standards we'd also "predict" an infinite mass for the electron. And for a while, early in the development of quantum field theory, we did. It was only after we realized that we don't get to predict such things using QFT, that nature gives these numbers to us, that we finally managed to turn QFT into a workable theory. John Baez has an excellent text on the subject: math(dot)ucr(dot)edu/home/baez/vacuum.html
@fuseteam
@fuseteam 7 жыл бұрын
Sooo if I get what your saying right vacuum energy _is_ dark energy?
@astrophonix
@astrophonix 7 жыл бұрын
Everything in my life sucks, except my vacuum cleaner.
@Dowlphin
@Dowlphin 5 жыл бұрын
THAT'S the spirit! 😆
@Legend-to2rx
@Legend-to2rx 5 жыл бұрын
@@humanrightsadvocate r/whoosh
@nonelost1
@nonelost1 5 жыл бұрын
Perhaps your vacuum tried to suck up everything in your life and got clogged. Just two days ago I was making a "battle of the vacuums" video between three different models of Bissells. I laid down three rows of shredder confetti on my carpet. All three got clogged. I think I laid down too much confetti.
@bnjmnwst
@bnjmnwst 5 жыл бұрын
Now THAT'S a vacuum catastrophe.
@thomasjamison2050
@thomasjamison2050 5 жыл бұрын
If your vacuum needs cleaning, it's not a vacuum.
@ryanp1922
@ryanp1922 7 жыл бұрын
I am too drunk to absorb this right now. Adding to my watch later queue.
@tgasnier1
@tgasnier1 7 жыл бұрын
I like his videos. I can not follow almost anything, but when I understand a sentence I am very happy.
@cortster12
@cortster12 7 жыл бұрын
A vacuum callapse is my favorite sci-fi apocalyptic scenario.
@safir2241
@safir2241 7 жыл бұрын
“If you claim to understand quantum mechanics, then you don’t understand quantum mechanics.” -Richard Feynman
@devrim-oguz
@devrim-oguz 7 жыл бұрын
You have written his name wrong.
@safir2241
@safir2241 7 жыл бұрын
Ali Devrim OĞUZ Fuk
@safir2241
@safir2241 7 жыл бұрын
Ali Devrim OĞUZ Actually no, it’s spelt like that
@louisa.520
@louisa.520 7 жыл бұрын
+Safir *Feynman
@safir2241
@safir2241 7 жыл бұрын
Ben Loui ohhh didnt see that. *facepalm*
@maxwyght1840
@maxwyght1840 7 жыл бұрын
Will you ever do a video on spontaneous vacuum decay? The hypothesis that posits the higgs field is at a pseudo stable state, and if one area of the higgs field quantum tunnels into the true zero point, it would cause a lightspeed expansion of a point of reality where all the laws of physics would break down?
@adamlovelace7572
@adamlovelace7572 7 жыл бұрын
This catastrophe reminds of the ultra violet catastrophe, or renormalization in quantum electro dynamics. I imagine the solution can't be the same as either of those, or we'd have solved it already.
@BladeOfLight16
@BladeOfLight16 5 жыл бұрын
The solution to the ultraviolet catastrophe was to throw out existing theory and develop a new model of black body radiation based on actual readings. ;)
@baruchben-david4196
@baruchben-david4196 5 жыл бұрын
That thought occurred to me...
@rproyecto
@rproyecto 7 жыл бұрын
It is incredible how much I enjoy all of your videos. Again thank you a lot!!!!!!!
@davidwilkie9551
@davidwilkie9551 6 жыл бұрын
The bit about high energy gas had always been an "Ideal Gas" question I didn't know how to ask, thanks for the info. The situational positioning intro is a "Reciprocal" substantiation of "multi-phase = Mass-Momentum-Potential Energy Quantized Superposition.., = modulated/Timed aspects of one ultimate infinity, Eternity-Now, ..from a WYSIWYG perspective, when you are aware of the QM-Time Projection-Drawing Quantum Operator cause-effect on e-Pi-i Space-time Resonance Structure... Vacuum energy and Quantum Fields, reminds me of sieves and conglomerates of pebbles, sand and dust, and the size distribution of the filtrates that resemble the distribution of primes and co-factor "conglomerates". Until Quantum Computations can resolve the structure of the Universe, this is an assumed/perceived "Anthropically"/biologically stable arrangement of timing-spacing of integrated QM-Time "leaky" pulse cycles of Superspin. Eternity, infinity, means that it's an observable, permanent feature of the Multiverse integration of locked phase-states of Phys-Chem. _____ Wave-particle quantum duality in the Field Modulation Mechanism.., the picture Physics Girl and team produced, of the Naiver-Stokes analysis problem should assist in intuitive skills for dealing with Actuality. It's complicated and messy, and difficult to explain because explanations are the reciprocal of Simplicity-> the QM-TIMESPACE Computational program that is the Holographic information state here-now. Vacuum Energy, Centrally limited by the QM-TIMESPACE connection to the Mathematically observable-by-empirical-calculations Planck Dimension, has the sub structure of frequency-timing harmonic reciprocal field existence, of flat-space "Neutronic" connection at the .dt ground state. It's the orthogonal "outside" quantization surface (of the i-reflection Singularity/central limit) tangentially, to absolute zero, (where all the Entangled "Super properties" are), and the act-ual Origin of "One Electron" modulation-> here-now-> Timing conception imagined by Wheeler and Feynman, (funnily enough), that naturally leads to an understanding of the Actuality, Quantum Fields Modulation Mechanism QM-Time Singularity substantiation of Spacetime. "The true nature of Spacetime..", is "simply" closer than we CAN think, as participant elemental composites of Spacetime..., self-evolving subroutines? (Yep, indescribably chaotic connection of one Infinity, Hotel Hilbert style.., so the the "Grand Unification of Theory" can be assembled at the Eternal Conference held just through the "Resonance Door" to any Universe that can be imagined and "proven" in practice.., but even this Actuality would probably qualify as untested Fiction, when meticulously, religiously, studied, and attempted to formalize without further evolution (!?).
@to9100
@to9100 7 жыл бұрын
What if there are limited a number of frequency modes for each field. Similar to the limited energy packets for photons.
@garethdean6382
@garethdean6382 7 жыл бұрын
That would suggest that particle energies are limited in such a way, something we have no evidence for. It can help limit the vacuum energy (At the least at some point any two energies that are close enough become indistinguishable.) but given the 'smoothness' we've already seen it's not enough.
@luis5d6b
@luis5d6b 7 жыл бұрын
The fact that we have to multiply the vacuum energy of all the modes together to get the number sounds a lot like the ultraviolet catastrophe to me, maybe just like with Plank's quatinzation there is a deeper idea about space-time and/or information underlying all of this.
@thenewtalkerguy496
@thenewtalkerguy496 7 жыл бұрын
You're gonna need a good stretch after that reach, buddy.
@dirm12
@dirm12 7 жыл бұрын
He said add iirc. And they are already quantised. How are you gonna quantise them further?
@luis5d6b
@luis5d6b 7 жыл бұрын
Well, by no means I am saying this is true just speculating, but when more space is generated more fields are generated with it, so quantizing space-time may be the way to go, but of course we need quantum gravity for that.
@Bodyknock
@Bodyknock 7 жыл бұрын
The deeper idea needed could simply be the anthropic principle mentioned in the video. All that would be required is that there are an infinite number of universes bubbling up and those universes take on random values of vacuum energy. Even though the probability of an extremely small energy value would be low in a given universe, with an infinite number of universes there would be an infinite number that would have approximately the same value as ours. And if intelligent life is only possible within universes with our approximate amount of vacuum energy then for us to even exist to ask the question we would have to be in one of those rare-but-still-infinite-in-number such universes. Obviously there could be another explanation, of course, but I definitely wouldn't be surprised if an infinite multiverse with random values for certain aspects was the reason for the vacuum energy amount.
@luis5d6b
@luis5d6b 7 жыл бұрын
That is indeed a great point, the mere fact that we know there are parts of the universe without any causal connection with us and the fact that our current measurements indicate the universe may very well be flat and therefore infinite hint at that possibility, I believe even that may be answered by a quantum gravity theory, some theoretical work hints at the possibility of gravity being something even more essential... Information, information organized in increasingly more complex states (states with more degrees of freedom) The Universe as a whole may very well be eternal with little patches that suffer from inflation when the information that makes such patch is randomly organized in the right conditions (which would be inevitable in an infinite amount of time), and every possible organization of the information can occur inside of each patch, giving rise to the possibility of infinitely many universes like ours scattered throught eternity, well this is still just speculation but nice ideas to think indeed.
@mozgow80
@mozgow80 7 жыл бұрын
Could it be that small value of vacuum energy is somehow connected to the small disparity between matter and antimatter after big bang?
@Boogaboioringale
@Boogaboioringale 4 жыл бұрын
My thoughts exactly. Mainly because the difference is so small in both cases.
@christiancampbell466
@christiancampbell466 4 жыл бұрын
mozgow80 I hold onto this exact conceptual thread for my tenuous grasp on why anything (including all the turtles) exists! At 6:33 Matt says, “Basic supersymmetry only allows us to cancel out photons down to the so-called electroweak energy” -⁠ why is this? Kerry Fitch What do you mean, “both cases”?
@KpxUrz5745
@KpxUrz5745 6 жыл бұрын
If Carl Sagan were explaining this, I would listen to it "Billions and Billions" of times.
@medexamtoolscom
@medexamtoolscom 2 жыл бұрын
He never actually said that. "Billions and billions" was just something journalists used to mock him, without him ever actually having said it. Much like "Let them eat cake" and Marie Antoinette, or Bob Dole talking about himself in the 3rd person, or William Shatner...... talking....... like this. It's all parodies mimicking other parodies and not the real person. Sagan barely ever even actually said billions, but at no point in the public record, not in any lecture, not in Cosmos, did he ever say billions and billions.
@KpxUrz5745
@KpxUrz5745 2 жыл бұрын
@@medexamtoolscom Not so. I clearly recall Sagan saying those exact words. And so do countless other listeners. This is not up for debate. My memory is excellent.
@TheOutZZ
@TheOutZZ 2 жыл бұрын
@@KpxUrz5745 "I know I'm right so therefore you are wrong." Who are you, being so wise in the ways of logic? Kidding, but a discussion does not have any more truth value if the one proposing or arguing against it can not provide sufficient evidence. Not trying to attack you, just saying that leaving it at that means nobody did really "win" this.
@KpxUrz5745
@KpxUrz5745 2 жыл бұрын
@@TheOutZZ I did provide evidence: my unfailing memory of hearing Sagan utter those exact words, and in his special unique enunciation. It is preposterous to debate this inconsequential factoid any further. Everyone can go hear for themselves.
@Qthedude16
@Qthedude16 7 жыл бұрын
ZPM's in Stargate technically use vacuum energy derived from an isolated portion of sub-space, so they technically aren't going against the laws of physics until they can disprove sub-space.
@Vegan4Everything
@Vegan4Everything 5 жыл бұрын
After the sun sets, I notice a bunch of bright little dots start to appear in the night sky. What's really crazy is that when the moon doesn't wanna come out, more of these dots appear. o.O
@Vegan4Everything
@Vegan4Everything 5 жыл бұрын
@@patrickjordan4073 I have a theory that "science" doesn't support, but it goes like this: The moon is filled with solar panels. As it charges up, less panels are needed. It stays fully lit for a few days, but starts to run out of juice. That's when the aliens start setting up the solar panels again.
@Vegan4Everything
@Vegan4Everything 5 жыл бұрын
@The Jim Reaper™ Nope. Only the Earth is flat. All other planets are spheres. The cheese part seems plausible, though.
@Vegan4Everything
@Vegan4Everything 5 жыл бұрын
@The Jim Reaper™ Holy "cow", I think you're onto something! Yes, they totally need a fourth guy.
@noahmccann4438
@noahmccann4438 7 жыл бұрын
Doesn’t a similar discrepancy exist between antimatter and matter? By which I mean - if they perfectly balanced one another then all matter would have been annihilated. If the positive and negative energies of the fields also failed to perfectly balance (leading to the small but not zero value mentioned in the video) could that be related to the inequality in matter/antimatter? I think I’ve also heard that it’s possible that matter only “won” in our area of the universe, and that antimatter might be more prevalent elsewhere. In which case there may only be a local discrepancy.
@DarkSpar13
@DarkSpar13 7 жыл бұрын
Makes me curious if there are antimatter stars out past the edge of the observable universe. Or possibly within it. Is there any way to tell if a distant star is composed of antihydrogen?
@Qrzychu92
@Qrzychu92 7 жыл бұрын
Not really, in one of the previous episodes Matt said, that maybe, just maybe, there are anti-galaxies. That would be so awesome! :D
@aibot1074
@aibot1074 7 жыл бұрын
I keep thinking of all the astrophysical jets we see in the Universe emitting along the axis of rotation. If the big bang singularity was rotating and frame-dragging, spewing a stream of both antimatter and matter in quanta, while precessing, wouldn't that cause unevenness that could have separated and survived with vast imbalances?
@markanthony2919
@markanthony2919 7 жыл бұрын
My theory , for what it's worth, is that there is a balance between anti matter and matter in the 4 % of the observable universe i.e. the observable universe is 2 % matter and 2% anti matter caused by imperfect mixing when matter formed and that matter and anti matter don't anhiliate but form dark matter at a lower energy state releasing large amounts of energy. So there are matter and anti matter galaxies and maybe even matter and anti matter stars within galaxies
@Junokaii
@Junokaii 6 жыл бұрын
Well said
@PlasmaHH
@PlasmaHH 7 жыл бұрын
What are the chances that the mechanism responsible for the imbalance in supersymmetric energies cancellation is the same as the one responsible for there being matter (instead of it all cancelling out with antimatter)? Also if we take the 10^-8 vacuum energy and reverse the calculation, what would be the highest allowed frequency that falls out of the equations? Did we ever observe anything higher than that?
@caralladas76
@caralladas76 10 ай бұрын
The best explanation of the vacuum catastrophe i've seen!!
@KryogenKeeper
@KryogenKeeper 3 жыл бұрын
I hypothesize that the "Flux-Capacitor" from "Back to the Future", was a device designed to artificially create an area of "zero energy" which "punched a hole" through space time. These chaotic yet miniscule fluctuations in spacetime, each need to be calculated and offset to zero(relative) so the complex, perspective frame based math can be applied. It's the capacitor function of this device that literally holds the magic, though. Once the fluctuations are calculated, usually energy needs to be removed from spacetime. Nothing especially strange. The excess electrons are stored in an old dry-cell style battery, and then used to power the exhaust vents from the primary quantum reaction. sounds kewl -edit- "Fine-Tune" spacetime, that's what it does. =)
@zachariahstovall1744
@zachariahstovall1744 6 жыл бұрын
Okay this guys voice is so soothing. I just put on my autoplay and let him read me to sleep.
@davidtaliaferro
@davidtaliaferro 3 жыл бұрын
Just say its dark vacuum and move on; adding dark to anything in science makes you appear smarter.
@scottjones7948
@scottjones7948 5 ай бұрын
Disagree. The whole "dark matter, dark energy" thing is an intellectual loss. A failure of observation and/or measurement.
@Giantcrabz
@Giantcrabz 3 ай бұрын
dark comment
@glenn8322
@glenn8322 5 жыл бұрын
The Vacuum Catastrophe! Is that like the Ultraviolet Catastrophe? 'cause they sorted that one.
@rogerkearns8094
@rogerkearns8094 5 жыл бұрын
I agree, it seems superficially like it, at least. I believe that the latter was resolved by introducing discrete energy quanta; the video made me wonder whether the former might involve a discrete frequency entity of some kind.. (I'm not a physicist - perhaps that's obvious.)
@Boogaboioringale
@Boogaboioringale 4 жыл бұрын
Jack Sainthill : Yeah, discrete frequency would require discrete wavelengths (they are related ). It seems strange indeed that everything else in the universe is quantized (they want quantum gravity) so wavelengths is possibly quanta (albeit very small). Some theories say space is quantized(loop quantum gravity and string theory).
@MrNathanParrott
@MrNathanParrott 7 жыл бұрын
An erg is approximately the amount of work done (or energy consumed) by one common house fly performing one "push up," the leg-bending dip that brings its mouth to the surface on which it stands and back up. Or in SI units 10^-7 joules Source: en.wikipedia.org/wiki/Erg
@PhilipEnders
@PhilipEnders 7 жыл бұрын
I just found this channel and I'm loving the content. Well explained and super fascinating.
@billykirkpatrick335
@billykirkpatrick335 7 жыл бұрын
Hey, just wondering, where do you guys find your information for these videos? I'm very interested in theoretical, particle, and quantum physics, so it would be really helpful to know. Thanks!
@TooSlowTube
@TooSlowTube 5 жыл бұрын
I hear he's quite tall, for a dwarf.
@markkens9
@markkens9 5 жыл бұрын
We exist, therefore there's a non-zero _something_ somewhere.
@robinblankenship9234
@robinblankenship9234 6 жыл бұрын
Perhaps it already exists, but a "catalog" or a sequential numbering of your episodes, either in the totality of your output or by category, would really help those of us amateurs who love your work but would also like to be able to easily navigate through broad swarths. Thanks.
@stewiepid4385
@stewiepid4385 3 жыл бұрын
Oh my! The only vacuum catastrophe I have experienced was when my Kirby impeller blade broke.
@joecaner
@joecaner 5 жыл бұрын
Something from nothing and your chicks for free. I want my. I want my. I want dark energy.
@brewcityboatclub8299
@brewcityboatclub8299 5 жыл бұрын
I love you
@sunsing4u
@sunsing4u 5 жыл бұрын
I like calculating in base twelve for the really tuff stuff.
@lucianovanleeuwen1359
@lucianovanleeuwen1359 5 жыл бұрын
We need to install higher energy ovens. Custom particle accelator delivery. We need to understand that dark matter. We need to discover dark energy...
@jamezkpal2361
@jamezkpal2361 4 жыл бұрын
😂
@neilsanghvi5229
@neilsanghvi5229 4 жыл бұрын
I should have learned to solve equations I should have learned to work the LHC
@NewMessage
@NewMessage 7 жыл бұрын
My dog was all excited to watch this video until he found out it wasn't a rant about the rec room monster known commonly as 'the vacuum cleaner'.
@brendanotoole5871
@brendanotoole5871 7 жыл бұрын
You're here too? lol
@hypercuriosity9828
@hypercuriosity9828 7 жыл бұрын
New Message hi buddy. Back again
@brendanotoole5871
@brendanotoole5871 7 жыл бұрын
So where are you from man? It's interesting, i see you on all my regular KZbin haunts, writing witty things, decent bugs bunny references. You seem like a decent entity.
@NewMessage
@NewMessage 7 жыл бұрын
I'm all over the place.. Gotta have hobbies, right? I'm glad to see you have such great taste in KZbin channels though.
@TheGesox
@TheGesox 7 жыл бұрын
MMD had a dejavue ... my Rottweiler dog one day killed my one when i was at work
@MusiCaninesTheMusicalDogs
@MusiCaninesTheMusicalDogs 7 жыл бұрын
Any kind of energy is subdued to gravity, therefore vacuum energy would cause expansion of the universe? I don't get it! Shouldn't it attract things together? 😮
@tehlaser
@tehlaser 7 жыл бұрын
L Galicki Band The energy is the same everywhere. Any particular point is pulled in every direction equally, so the attractive effect all cancels out, leaving only the expansionary effect mentioned in the video.
@MrTripcore
@MrTripcore 7 жыл бұрын
The universe has negative pressure (no outside force acting upon it). And then you have the break of the law of energy conservation which is also causing the accelerated expansion.
@nachannachle2706
@nachannachle2706 7 жыл бұрын
This is totally flying HIGH above my brainwaves. I need to research what the "erg/cm3" represents before I can make sense of all this. Pr O'Dowd, could you reference your units in a corner of your screen when discussing them, please?
@wlan246
@wlan246 7 жыл бұрын
11:21 That "hot Elf chick" (Tauriel) was a virtual character: never appeared in _The Hobbit_ as written by The Great One™ (J.R.R.Tolkien) before or since, but blinked into existence just long enough to sell tickets to Peter Jackson's movies. Just like the virtual Elves at Helm's Deep. Other than that, I have no strong opinions on the subject. ;-)
@eds1942
@eds1942 5 жыл бұрын
I kinda liked the inclusion. We had a Maiar and an Elf, an Elf and a Human, but no love for the Dwarfs or Hobbits. But, a dualogy would’ve been preferable to a trilogy, that was the grab for money, they could’ve saved some of the extra fluff for the Extended Edition.
@wearyterror9671
@wearyterror9671 7 жыл бұрын
🎶Hold up..hay..the vacuum measurement seems off🎶
@theamazingfuzzlord
@theamazingfuzzlord 7 жыл бұрын
damn. our extradimensional ai overlords are for sure going to shut down the simulation now
@jetison333
@jetison333 7 жыл бұрын
Silliam Whakespeare if we did have extradimensional overlords, we'd be the ai not them
@deusexaethera
@deusexaethera 5 жыл бұрын
This wouldn't necessarily be a bad thing. I desperately need more sleep.
@grbradsk
@grbradsk 5 жыл бұрын
It's like that old Arthur C Clark story about compiling the 9 billion names of god. Once they know we're on to them, they'll pull the plug fast -- no one wants a grad school physics project to wake up and know itself, it's against hyper dimensional school rules. Personally, I think we're a simulation that lost a memory reference and just keeps computing with no parent process.
@marcinnawrocki1437
@marcinnawrocki1437 5 жыл бұрын
Not yet, they can just reset state, get us back to bronze age and start agian. Probably not shut down unless we get console hack somehow.
@marcinnawrocki1437
@marcinnawrocki1437 5 жыл бұрын
@@grbradsk There are probably rules against killing off simulations, so we are long forgotten simulations in somebodys higher dimensional basement. Even our old myths about gods messing with us long time ago fit this story. We are like abandoned MMORPG that nobody has authority to shut down, all gods are playing new ones, we are Everquest.
@lordofthewoods
@lordofthewoods 5 жыл бұрын
For a minute, I thought this video was about a cat's tail getting caught in the vacuum cleaner or something...
@ianm1462
@ianm1462 Жыл бұрын
2:55 It’s a little thing, but the wavelength increasing to ‘max’ looks awesome
@danielkinney6325
@danielkinney6325 5 жыл бұрын
I would love to hear the type of pillow talk that comes from Matt. To most of us you might as well be speaking in a different language. Great videos.
@daryljonesfoster4102
@daryljonesfoster4102 5 жыл бұрын
Gaaaaayyyys ~ !
@_scott_
@_scott_ 7 жыл бұрын
"Allowing life AND astronomers to evolve". :-)
@christiancampbell466
@christiancampbell466 4 жыл бұрын
I’m not above leaning on the anthropic principle to make peace with this puzzle. (And to any Boltzmann brain with the nerve to argue with me on this I say, you’ve got nowhere to stand. …I’ll be here all week.)
@therealforeignwolf
@therealforeignwolf 6 жыл бұрын
"it sounds like a hack, and it sorta is... but we're getting desperate" wowzers!!!!
@wewho1279
@wewho1279 4 жыл бұрын
and that was the honest point....
@holazach9869
@holazach9869 7 жыл бұрын
Video was uploaded a minute ago and there's already dislikes, like bruh do they have notifications on just to dislike it
@ferdinandkraft857
@ferdinandkraft857 7 жыл бұрын
Probably flat-earthers.
@holazach9869
@holazach9869 7 жыл бұрын
Jorge Lopez what are you talking about
@KknownUnkknown
@KknownUnkknown 7 жыл бұрын
holazach, yes. i goh on a djsliking spree
@delphi-moochymaker62
@delphi-moochymaker62 5 жыл бұрын
Religious folk who think there is one answer....God.
@tomakist
@tomakist 7 жыл бұрын
Can you speak more about the nature of space? - Space can be created, but how? - Is there any principal of conservation that governs it? - Can space be destroyed? - Could the Big Bang just be an energy to space conversion? - I heard of the theory of quantized space (and time), could that help to explain vacuum energy’s low value? - If space and time are quantized how would that effect quantum uncertainty? - Why would spacicles only form a 3D network?
@garethdean6382
@garethdean6382 7 жыл бұрын
1.) That question is a lot like 'How does gravity work?' we have the math for it, space is created and destroyed whenever energy moves or if some sort of energy pervades that space. It's what causes gravitational waves and the pulling effect of gravity. The 'how' is a deep question but we understand the math and mechanism. 2.) There are very strict rules behind how space is created and destroyed but nothing that demands space have a constant volume. In general things balance, for example spacetime flows towards Earth, pulling things along with it and producing gravity. There's stretching ('spaghettification') involved as well as compression as space heads towards Earth's center. In sum however anyone at a fixed distance from Earth will not see any increase or decrease in the volume of space around it. The permanent expansion or contraction of space likewise follows rules that relate to the energy and mass within it and how these change. This is why only a specific value of dark energy could produce the expansion we see and why it cannot simply be turned into the number we calculate. 3.) Energy-space conversion is a tricky thing; empty space can create elease energy if it decays to a lower energy state; in essence it's a vacuum energy->regular energy conversion. This may have been what ended inflation and created all the energy we see in our universe. The reverse can happen but it's much, much harder to do since you need to create conditions like those of the big bang. 4.) Quantized space would introduce a 'graininess' to the universe that would indeed severely limit certain phenomena, reducing infinite possibilities to a discrete set. It wouldn't affect uncertainty too much, t'd just be more 'pixelated'.
@kiowanieuwoudt5192
@kiowanieuwoudt5192 5 жыл бұрын
Im addicted to space videos but this one is totally confusing.
@vgerlightning7134
@vgerlightning7134 4 жыл бұрын
When astronomer Tyson finds himself close to you, he becomes extremely nervous, ( smile ).
@fishermikoaj6578
@fishermikoaj6578 7 жыл бұрын
Maybe source of this catastrophe is the same as cause of matter antimatter discrepancy?
@gaunterodimm3606
@gaunterodimm3606 7 жыл бұрын
Yes, that Is my thought also. A matter imbalance could lead to an energy imbalance or vice versa. Would they not be related?
@dauth912
@dauth912 7 жыл бұрын
Is it likely or even possible that the observed non-zero zero-point energy and the existence of all remaining matter (not annihilated after the big bang by its antimatter pair, thus leading to our entirely matter universe) could be related or even fundamentally linked? Like a microscopic difference in the quark/electron fields that led to our universe's preference for all matter adding up (across all available wavelengths) to be exactly the 10^-8 difference we see in our expanding universe not covered by super symmetry (Which would obviously need a rename) I understand that this falls under the anthropic principle as we DO exist so the inequality must exist somewhere... thoughts?
@lordofthewoods
@lordofthewoods 5 жыл бұрын
@ dauth: Thoughts? How about: wtF??? : )
@thedouglasw.lippchannel5546
@thedouglasw.lippchannel5546 Жыл бұрын
To perhaps clarify - the smaller the vibration (wavelength) the higher the energy. Wavelength and frequency being inverse to one another. E=hf. High frequency = high energy (i.e. gamma versus microwave) QM uses the shortest wavelength. Why I don't know. GR is using the longest wavelength. The vacuum of space. This is like comparing the two different sides of the MTS equation. A long long wavelength (small frequency) exists at the Dark Energy side (S side of MTS) (10 to the minus 29 g/cm3) while the shortest wavelength (Planck & 5.16 to the 93rd g/cm3) (high frequency) exists as the extreme density of a black hole (M side of the MTS equation) . Remember The MTS equation is from 0 mph to "c" in the MTS direction. In the STM direction, we go from "c" to 0mph. And with Lorentz transformations along the way. [As a side note I recall I believe out of Chicago two scientists saying that as things were brought an Bose-Einstein condensate, they approached a black hole, well, this appears evident in the MTS equation as the M (black hole) side of the equation is one of no motion. I believe I left a nervous and blathering phone message to one of them some ten or so years ago. ] What I have just realized now is that there are some 10 to the order of 120 magnitudes between the M and S side of the MTS equation. In your vacuum catastrophe you are comparing a short wavelength (high mass-high frequency ) QM environment to a long wavelength (low mass - high space-low frequency) GR environment. Why? The zero point energy of QM has nothing to do with the vacuum of space. You are mixing apples and peanuts.
@Mr.Nichan
@Mr.Nichan 4 жыл бұрын
In the supersymmetry argument, the "fine tuning" of 2 very large numbers canceling out to produce a tiny positive value just means that the symmetry is broken only for very low-energy photons. Isn't that kind of like all these weird quantum effects that only matter for very cold matter?
@deusexaethera
@deusexaethera 5 жыл бұрын
Can't the enormous zero-point energy (and corresponding severe curvature of spacetime) predicted by theory be reconciled with the flatness of the _observable_ universe by postulating that the _entire_ universe is large enough to accommodate the theoretically-predicted severe curvature? Furthermore, can't the accelerating expansion of the universe be cancelled-out over time by increasing production of virtual particles from vacuum energy due to the increasing number of points at which those virtual particles can manifest? You might say "but particles are always created with antiparticles, so they always mutually annihilate, returning the energy to the vacuum", but we know that isn't the case, because there's a tiny asymmetry in the production of particles and antiparticles that accounts for the existence of matter in the universe.
@tomat6362
@tomat6362 5 жыл бұрын
The acceleration of the expansion of the universe has long since reached the speed of light, and as it attempts to exceed it, space itself accelerates its expansion to be big enough to accommodate the trans-light-speed particles. The SCALE of space itself expands to accommodate.
@josephmatthews7698
@josephmatthews7698 6 жыл бұрын
If I've learned anything about physics it's that if I come across an answer that involves infinity I'm either asking the wrong question or did the math wrong.
@matyourin
@matyourin 5 жыл бұрын
I have a question :) Is there theoretical work done by someone reputable to find an alternative explanation to our gravitational measurements without dark matter and dark energy? I personally do not like that "fix" and somehow feel more comfortable with a fix to Einsteins gravitational theory to explain the measurements. Somehow this darkmatter/energy-stuff just feels to me like the Aether-explanation they had before Einstein came and fixed it. Any new Einsteins around who could come up with a new, better theory, that doesn't rely on "hypothetical dark energy/matter"?
@lPlanetarizado
@lPlanetarizado 2 жыл бұрын
there is Modified Newtonian dynamics (MOND), but it seems the data doesnt agree with MOND
@MrManerd
@MrManerd 7 жыл бұрын
I'm so glad I watched this till the end, that last part was funny.
@justanotherguy469
@justanotherguy469 4 жыл бұрын
What was the subject matter before the funny part? It was about free energy from the vacuum. The funny part was placed in there in order to discourage us from taking vacuum energy seriously. Nikola Tesla demonstrated a century ago that you can extract energy from the vacuum, something the bankers did not like. Me thinks the bankers are the ones whom own our media and this gentleman is on their payroll.
@robertkesselring
@robertkesselring 5 жыл бұрын
Wasn't there a similar problem explaining why matter and anti-matter did not occur in exactly the same amounts? If some tiny difference between matter and anti-matter resulted in a matter dominated universe, why would a tiny difference between positive and negative vacuum energies be less plausible?
@Cruelcoil
@Cruelcoil 7 жыл бұрын
I'm lost
@brewbrewbrewthedeck4138
@brewbrewbrewthedeck4138 6 жыл бұрын
Don't worry, so are physicists in the face of this gross incongruence between theory and reality.
@mitchellmelkin4078
@mitchellmelkin4078 5 жыл бұрын
Have you tried GPS?
@wesleyrodgers886
@wesleyrodgers886 5 жыл бұрын
I'm late AND lost.
@vp21ct
@vp21ct 7 жыл бұрын
No comment about the False Vacuum Collapse in this? I'm both disappointed and relieved. Frankly, I consider it a missed opportunity, False Vacuum collapse would have been a great 'Halloween horror story'.
@josephmarsh5031
@josephmarsh5031 7 жыл бұрын
Its scary but A) there's nothing you could do about it. B) you wouldn't see it coming and C)I'd likely be a relatively quick death so... If you think about all the energy contained in the earth just holding it together, all those electrons trying to push each other away, suddenly having no resistance from doing so. I don't have a degree in physics but I'm fairly certain the earth would just explode killing us all.
@Tina-Brune
@Tina-Brune 7 жыл бұрын
Even if matter explodes within the collapse, it couldn't kill you : since the collapse horizon moves at the speed of light, it would always reach you before any mater it already absorbed. So you will get vaporised BEFORE being blown up, which is nice.
@scottboyd785
@scottboyd785 7 жыл бұрын
Hadrien de Boisset "So at least I have that going for me."
@vacuumdiagrams652
@vacuumdiagrams652 7 жыл бұрын
It'd be a bit awkward to talk about false vacuum decay in this video because while both subjects include the word "vacuum", inside the hood they're studied using very different tools. The false vacuum decay stuff is deeply reliant on Feynman's path integral formulation of quantum field theory, whereas this zero-point energy stuff is most naturally expressed in the so-called canonical formulation. The two formulations are equivalent where it matters, of course, but mathematically they're quite different so that silently flipping between the two could confuse most non-expert viewers.
@vp21ct
@vp21ct 7 жыл бұрын
Also, I imagine that this deserved it's own episode, and the FVC deserves it's own episode. Still, the nature of 'energy in vacuum' is the foundation upon which the FVC was built, and it would have been a fun 'spoopy' mention.
@eclipse_t1022
@eclipse_t1022 5 жыл бұрын
You've got to wonder if the vacuum catastrophe and the matter/anti-matter problem are related somehow. In both cases you've got an extremely small result left over from very large calculations.
@gblake5560
@gblake5560 5 жыл бұрын
I love that there are no cartoon birds and that things are actually explained not dumbed down for mass consumption. Surprised it’s pbs
@scottre3220
@scottre3220 7 жыл бұрын
There is still one way to get vacuum energy perpetual motion (at least for our universe): If you could open a (hopefully small) portal to a universe with a high vacuum energy density, you would get net energy flow until the energy content of both universes equilbriate.
@samhayes-astrion
@samhayes-astrion 7 жыл бұрын
If the universe came from a single point, a singularity, that expanded, wouldn't a dot being expanded into three-dimensions make it a sphere anyway?
@thenewtalkerguy496
@thenewtalkerguy496 7 жыл бұрын
No but it should immediately collapse on itself back into a black hole.
@Reddles37
@Reddles37 7 жыл бұрын
The universe wasn't necessarily compressed to a single point during the big bang. If we are in a flat or open universe then it would have already been infinite from the start.
@Bradgilliswhammyman
@Bradgilliswhammyman 7 жыл бұрын
flat and open refer to energy states I think. The universe didn't expand into space, it was space. So every point was expanding from every other point at the same rate. I don't understand it all, there is a lot of advanced math around it.
@onehitpick9758
@onehitpick9758 7 жыл бұрын
And the entire universe is only a two or three times older than the Earth -- make any sense?
@Bodyknock
@Bodyknock 7 жыл бұрын
It's important to remember no cosmologist or physicist actually talks about something literally being an single infinitely small point. Rather the singularities are just an indication that the mathematical models used that generate the singularity are incomplete at that energy scale or density, etc. So scientist talk about the Big Bang explaining everything that happens down to a small fraction of a second after it started but do not talk about what happened immediately prior to that other than to say that our current models of physics break down at that scale. So basically whatever the universe might have been like immediately at the very start of the Big Bang it was almost certainly something with actual non-zero volume, not a literal zero-dimensional point.
@memoryerror
@memoryerror 7 жыл бұрын
What about emergent gravity?
@jh-wq5qn
@jh-wq5qn 7 жыл бұрын
Verlinde's theories have me excited that we may have some of these answers in our lifetime. EG could potentially lessen or completely diminish the discrepancies in this and other physics 'catastrophes'. Especially vacuum energy related problems, as his theories require a positive vacuum energy, as dark energy predicts.
@memoryerror
@memoryerror 7 жыл бұрын
Yes, and there are some interesting videos on kzbin.info/door/j2PBh1npuzyQ52qqV9eAmQ that seem to be related / expanding on Verlinde.
@jh-wq5qn
@jh-wq5qn 7 жыл бұрын
Didn't know they had a channel! Thanks for the hookup
@circuitboardsushi
@circuitboardsushi 7 жыл бұрын
Could the vacuum catastrophe indicate that photons have a maximum energy less than a Plank energy?
@onehitpick9758
@onehitpick9758 7 жыл бұрын
Should be easy enough to test eventually (maybe in 1000 years). At what energy (frequency) do real photons start to knock real particles out of a true vacuum? Seems like it should be before they start to self-orbit.
@cyberbird2014
@cyberbird2014 7 жыл бұрын
The matter of the video is: QFT with it's predictions can't make an useful and/or trustful vaccum energy, because it simply doesn't make sense. What the video explains is that a very tiny supersimmetry predicted by the other mentioned theory can explain in a rational and perfectly practical way vacuum energy. ( Sorry if there's any grammatical mistakes )
@klausantitheistbolvig8372
@klausantitheistbolvig8372 5 жыл бұрын
Quite frankly my favourite channel. Way of going mr Doyle
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