Hi Everyone :) Please comment, like and share this video to help my channel grow so I can make more videos for you guys! I will be forever grateful :) Yours truly, Jade (miss physics) xxx
@Yathuprem7 жыл бұрын
More videos like this plssss !! Nicely explained this .. btw
@upandatom7 жыл бұрын
will do! and thanks :)
@aidanandrewson72237 жыл бұрын
This is by far the best explanation of entropy I've heard, Thank you for clearing all that up!
@upandatom7 жыл бұрын
+Aidan Andrewson thank you for the kind words :) i'm happy you enjoyed it!
@noahway136 жыл бұрын
Clearing that up took up precious energy from the universe.
@russellcbowden28965 жыл бұрын
Entropy is not disorder. Just google entropy is not disorder. Love your videos though!!!
@user-fg7fw1rw2i6 ай бұрын
@@upandatom E =mc•2 c = √E/m s = vt **** t=s/v ................................. s= d =dimention v=c =velocity t = time .................................. so... *** t = d/ √E/m ................................... Therefore, as long as the values d ., E , m must always be positive, then t must be positive. It can never be zero or negative. Therefore. Time only moves forward in one direction, there is no stopping or going back because dimension/energy and mass must always be positive.
@DaveTexas3 жыл бұрын
“Time flies like an arrow, but fruit flies like a banana."
@Ggdivhjkjl Жыл бұрын
When Australian throws a banana, it comes back.
@TraneFrancks5 жыл бұрын
One of the things that has always interested me is that while entropy of the universe is increasing, baryonic matter seemingly never stops increasing its organizational complexity. We went from opaque plasma to galaxies and life. I don't imagine that the processes that have lead to this organizational complexity have stopped, so ... the contrast is striking.
@charleediaven62782 жыл бұрын
I have studied this all my life. One of the ideas of baryonic complexity increase is the same as a local plateau. In a graph we see the complexity increase thus decreasing entropy. We do not know the base line of the increase, and hence we can not see the entropy increase of complexity accelerating entropy. Think of it this way, baryonic complexity here on earth drives us to use more and more energy. The Dyson sphere of enclosing a star would be complex, however in a longer term does this not maximize entropy events? A forest is organized, a match can reduce it to a state of much greater entropy. We burn the forest in a complex stove, one tree at a time. Stars organize matter, and reduce molecules, atoms to plasma. What do you think of this idea?
@TraneFrancks2 жыл бұрын
@@charleediaven6278 I think the most important aspect is that any trends towards reduced entropy are always localized and do not represent the overall trend towards entropy. At the end of the day, no matter how much we see localized organization, heat death is inevitable and there is simply no escape from entropy as a whole. The localized regions of reduced entropy are interesting, however, because they would seem to coincide with regions of increased dark matter density that likewise create the nodes of increased baryonic density throughout the universe. As for the whole issue of "driving us to use more energy", I think that's nothing more than a management issue, to be brutally honest. We humans have decided, for the most part, to live as though there were no sustainability constraints. Were we to take on a fundamentally different approach, our consumption of resources and, therefore, energy would be dramatically reduced compared to current trends.
@uncledarren42624 жыл бұрын
The problem with with entropy as an acceptance of time moving forward is that it is STILL based on OUR constant perspective. Our perspective of time is a single point of a foot print of a higher dimension (time) which we can not see any other way except one dimensionally. As the present.
@nigeldepledge37904 жыл бұрын
"Disorder" is often used as a synonym for entropy, but the two are not the same thing. Entropy is a measure of the degrees of freedom a system has, or the number of different ways it can change over time. For instance, in your six-dice example, you make it sound like 6,6,6,6,6,6 is less likely than, say, 2,3,1,5,5,1, but the two outcomes have exactly the same likelihood. The former looks ordered to us apes, whereas the latter does not. A better illustration is rolling your six dice in a tray and having all six form a neat rectangle in one corner : that *would* be a low-entropy configuration because the dice would spontaneously have to constrain the ways they can move. And you'd need to roll them an awful lot more than 46,000-odd times to have any reasonable chance of seeing this happen.
@Dragonblaster14 жыл бұрын
The example I always give is: "You have a jar which contains a neat layer of soot and a neat layer of flour. How long would you need to randomly shake the jar to get a grey mixture of soot and flour?" Most people correctly guess "not very long". "So how long do you think you'd need to shake it to turn it back into a neat layer of soot and a neat layer of flour?" After a little thought, most people say, "A long time... a very long time."
@jonminer98914 жыл бұрын
This year, August 25, 2020, it is known that the redshirt upon which the expansion of the universe is based, is not caused by the recessional velocity. So those far distant galaxies are not moving away from us, and the big bang as a single point must be incorrect as well since the time needed for the size of the present universe can't be true based on the age of distant galaxies based on their sizes and numbers of young stars.
@joshuacornelius254 жыл бұрын
If you could reverse time, the inverse of the 2nd law of thermodynamics works just fine. The reason why time goes "forward" is because our consciousness is a product of a physical substrate (our brains) relies on a electrochemical system that only works in one temporal dimension. You couldn't still have consciousness if you reversed causality, the flow of electrons, or the dynamics of synaptic connections within the nervous systems. Memory, sensory input, information processing all would not exist and do there would be no consciousness to observe the 'flow of time'. The wave function doesn't care about time and gets along quite nicely with or without it.
@VishalParmar-wc9rb7 жыл бұрын
Wow! please do more videos about TIME. I used to hate Physics (since it had lots of equations and math) and hence took Electronics & Telecommunications as my primary subject...this channel made me realise physics can be interesting.And yes, you explained it really well. Thankyou
@upandatom7 жыл бұрын
+Vishal Parmar thank you! I'm happy you like Time, it's a really cool topic and I have fun learning more about it :) How do you like Electronics? That's kind of physics right? I took an electronics subject during my undergrad and it had a lot to do with electrons and moving charges, which I really liked. Although I was never really good at the hands on stuff. And if it makes you feel better, I did a physics degree and it did have A LOT of math.
@VishalParmar-wc9rb7 жыл бұрын
Yeah well what I am studying is a 3 year diploma course in Electronics & Telecommunications. We had Physics in the first year (2 Sems of 6 month each) but it had most of basic stuff. What I study now is mostly circuit designing of various communication equipment's, mobile phones, PLCs etc...
@Dyslexic-Artist-Theory-on-Time7 жыл бұрын
Low entropy could be formed by an ongoing process of symmetry forming and breaking. I have read that the electron is the most spherical object in the Universe, each photon electron coupling or dipole moment could be a branching point for increasing entropy.
@Ole_Rasmussen6 жыл бұрын
You're really good at explaining things. I am new subscriber man.
@SpiritG8893 жыл бұрын
Finally, someone addresses the question of how the universe could have begun in a low entropy state. I've wondered this, but Google searches turn up nothing on this specific issue. So thanks for that.
@billcosbyeatsbabies99477 жыл бұрын
It's hard to believe this girl only has
@upandatom7 жыл бұрын
Nearly there!!
@joshuarosen62424 жыл бұрын
Three years later, she deservedly has more than 240 times that many.
@InfamousMS3 жыл бұрын
And now 319K!
@FunkyStudent6 жыл бұрын
As you said, entropy exists due to probability. If that's the case given enough time wouldn't the universe eventually return to a low entropy state?.
@pyral5145 жыл бұрын
It's possible. But it's much more likely that the universe reaches maximum entropy before that. Once maximum entropy is reached, there is no way back.
@abhisheksharma-sb3er4 жыл бұрын
Ya there is a theory that there could be 3 ways our universe end.
@TreDogOfficial6 жыл бұрын
One instantly realizes the limited scope of the human mind when contemplating a time where time ceases. Some questions shall never be answered, and that's how it's supposed to be. So enjoy the present. It's the only moment you are.
@Hammillian7 Жыл бұрын
I know little about this (time arrow), but am very interested. What occurs to me is that there is other much clearer indicator of the time flow, which is information storage: information can only be had from past events or situations. Life beings (same as automatic devices) take decisions (and actions) for the future based on information received from the past. Does it relate in any way to entropy increase? Thanks and congrats for your videos: I love them more than other divulgating authors' for yours are short enough to be watched in short stolen periods of my busy life.
@stewiesaidthat Жыл бұрын
Time is a measurement of motion. Going from an ordered state to an unordered state and back to an ordered state is not a reversal of time. It is a cycle. Each completed cycle is counted as 1. Programming a clock to cycle backwards does not reverse time. The same applies for the spin of an electron. You don't uncount cycles.
@prschuster5 жыл бұрын
So time going in one direction has something to do with entropy. I never thought of it that way.
@caricue4 жыл бұрын
It seems kind of obvious that a compact universe that was more or less filled with energy and matter would seem to be orderly and low entropy, but could just as easily be described as disorderly and high entropy since the energy and matter was spread out evenly within the compact space available. It seems like expansion is the important thing since it is providing the energy gradient that can be exploited for interesting things to happen. It's a good thing I don't actually know anything about this subject or it wouldn't be so easy to speculate randomly!
@tallmikbcroft69376 жыл бұрын
since the entropy of the entire universe is always increasing.... did it start in an Ultimate ordered state? how does the birth of new stars factor in to the 2nd law of thermodynamics?
@Michaeljack81sk5 жыл бұрын
I've never heard Entropy explained so well, thankyou!
@thomasp.crenshaw1853 жыл бұрын
Keep it in your pants mate... she's married.
@amphibiousone79726 жыл бұрын
Oh, this one os so good! You are awesome Jade! Just yesterday, I was trying to help my friend understand this, concept. You have just made this so easy for me. Time to share it with her. You are a much better teacher than me. Thank You SooooMuch😄👍👊🌈
@thomasp.crenshaw1853 жыл бұрын
Keep it in your pants mate... she's married.
@carboxysome26307 жыл бұрын
So when we decrease chaos in our room,we are actually adding to overall chaos even more than it was before we cleaned the room? Well that's depressing.
@upandatom7 жыл бұрын
+Carboxysome haha yyyyyup
@germanjimenez53364 жыл бұрын
I think it's a perception problem. We perceive time moving forward because our biology, chemistry, memories depend on things moving in the same direction. If our memories, experiences were not dependant on these laws, we'd be able to see the universe and all of the time at will.
@vinayakpendse72336 жыл бұрын
Amazing video. I have different solution for the last question, entropy always increases but there is very small but not zero chance of happening reverse, maybe at some point in the distant future, entire universe can collapse in a single. And from then it will grow again, and this process can continue forever.
@fewwiggle4 жыл бұрын
Time is an illusion, there is only an eternal now -- but on that stage, things change, and the relative rate of change of different things is what we perceive as time.
@andrewj223 жыл бұрын
2:32 "Q: Why is entropy always increasing? A: Disorder is just more likely than order." This is circular reasoning and doesn't answer the real question. Explaining the 2nd law as simply a statistical phenomenon *presupposes* a direction of time, but the direction of time *supervenes* on the 2nd law. That is, the statistical high likelihood of higher entropy should apply to the future *and* the past. The puzzle of the 2nd law is not about why the *future* has *higher* entropy, the real puzzle is about why the *past* has *lower* entropy. And *that's* a puzzle that can't be answered with statistical analysis.
@JoaoLucas-lh7gb7 жыл бұрын
I was just finding some like electric field and I found your channel. I am from Brazil, I've been learning English and I've starting my college in physics and it's really cool because I am learning both at the same time. I can understand you so many, you explain so well. obs: if you want to try explain the fact in physics, try to talk only theory because in Brazil in the class is more calculus than theory, physics is not mathematics hahahaha.
@upandatom7 жыл бұрын
+Max Planck thank you! ps cool KZfaq name btw
@SteveGouldinSpain5 жыл бұрын
I thought that the moon going around the earth or the earth going around the sun saw a very slight increase in altitude. Are they not drifting away? If time was reversed would they not fall inwards?
@bltwegmann84313 жыл бұрын
Tea and milk example seems confusing to me since the equivalent of what you call high-entropy with the milk and tea mixed together is exactly the same as the low-entropy state at the time just after the big bang when all the gas was evenly distributed.
@oliver_siegel Жыл бұрын
Such a great, simple explanation of an abstract, intangible topic! 👏
@davidwilkie95516 жыл бұрын
The Universe is a constantly changing arrangement of unique proportions that is the range of probabilities, zero-infinity-eternity, and no precise sum of all histories is possible to repeat exactly because 1-0D includes zero, an infinite inverse, reflecting "containment" of unique probability. It's best to draw your own conclusions from observations.
@eduardoalcamino41625 жыл бұрын
Wasn’t there low entropy because all mass was in a singularity point, and as mor time passes the more things occur and this at an exponential rate.
@AgentOccam5 жыл бұрын
@3:20 "...you'd have to wait a lot longer than the life of the universe". But that's not right, is it? You wouldn't necessarily *have* to wait that long. The chances of rolling all the dice as sixes, for example, might be one in 46,656, but that roll *for you* could be at any point. It's not guaranteed to be at roll 46,656; it could be at roll 2.
@1wheeldrive3 жыл бұрын
Yes. To say "you'd have to roll the dice 46,656 times to get" all sixes is a complete misunderstanding of what probability is. The dice could all be six on the first roll or never. Every combination has exactly the same chance of coming up and the chance is 1:46,656.
@Anonimowany14 жыл бұрын
If I think about it profoundly, then I realize that even if time went backwards, the universe would develop in the same way, once we got back into big bang singularity. Therefore time going backwards equals to time going forward. Both are the same.
@jaydeepvipradas86065 жыл бұрын
Time always goes in forward direction because of consciousness and feelings. Specially negative feelings. If some person hurts someone, it is possible that hurting will go deep inside consciousness. If we could rewind time, memories of hurting will be lost, but due to possibl presence of hurting deep inside conscious, hurt person will misbehave, with everyone including loved ones and children. So, it will be highly unethical to rewind time, it is denying your responsibility. Best way to deal with negativity is to confront it and handle it properly. Philosophically we have to assume possibility of supernatural watching us or we are in matrix and could be having a state where negativity may get accumulated. So we have to try to be highest level rational. Also, not having negativity is big limitations, a civilization where every person is not warrior will perish soon. We are survivors of the survival of the fittest war and moving towards much stable and progressing civilization. Aggression is required in problem solving, engineering, arts, thinking, in adventures and it leads to perfection.
@sixofone Жыл бұрын
If everything is vibrating on an atomic scale with entropy increasing why does it seem like vibrating things form organized geometric patterns and why would human beings find beauty in those patterns? Sunrises or sunsets or chords in music for example?
@davearbuthnut2412 жыл бұрын
I have a question: If the Uni/multi-verse has reached a state of maximum entropy, then the 1st vacuum fluctuation must decrease entropy and break the 2nd law?
@parshiwal8875 жыл бұрын
Thanks for very simple portrayal of a difficult topic. When we say that universe started with low entropy and is getting more and more messy, we are talking in terms of heat dissipation. Could it be that for some other measure (that we may or may not know) the entropy was higher initially and is going down ? Also, can you please make a video of nature of time. Love and wishes :) )
@librealgerien2 жыл бұрын
It can’t be going down now. A cold cup of warms up at room temperature because the entropy of the universe increases. That of the cup sees its temperature increase and the rest of the universe, other than the cup, sees its entropy decrease. Overall though the entropy increases. A warm cup of coffee’s entropy decreases at room temperature, whereas that of the rest of the universe increases. Here too the overall entropy increases. It always does.
@MaJelArt2 жыл бұрын
Reminds me of Maxwell’s devil, I think, anyway doesn’t entropy naturally decrease, when something is frozen, as would atoms not slow down and become more organized? What about making steel from iron, the atoms of carbon are fused into the iron atoms, making the end structure much more organized. Idk, maybe I’m missing something.
@seanramsey944 жыл бұрын
So if the passage of time is a function of entropy, that would indicate that eternal realms such as Heaven would experience no entropy, which would be in line with what innumerable mystics have said about time stopping when you die.
@elvlogbasico71664 жыл бұрын
I'm confused.. what about space-time sheet? Does that means it's space-entropy? And ik we are so used to notion of time, but what about velocity and momentum? They rely on time.. is that interchangeable to entropy? In other words space-entropy?
@tirtakeniten6 жыл бұрын
So now I know why my room is messy. ENTROPY of my room is always increasing.
@upandatom6 жыл бұрын
haha now you've got a scientific excuse for mum ;)
@nicolaiveliki14096 жыл бұрын
So the 2nd law of thermodynmics is the only law that is time-asymmetrical? Though just because the law is time-asymmetrical doesn't need to mean that it is the cause of time moving forward...
@jaydeepvipradas86065 жыл бұрын
Time going backwards is same as time still going forward but the universe going backwards along with all states. Entropy of multiverse is low at the start because new universe does not get mixed with other universes. It is kind of stable system. Entropy of our universe is decreasing because randomly moving high energy particles after big bang are forming stable structures like atoms and galaxies.
@theostickle26043 жыл бұрын
@Up and Atom Thank you, I don't say it enough.
@BladeRunner215773 жыл бұрын
Time is the first dimension in which we live. Then the is height, width and depth .
@mosiotv4 жыл бұрын
Fantastic video Jade! Tysm 🙏🏻
@utkarshrode51786 жыл бұрын
better than other videos I have seen on entropy....and anyone can easily understand this
@HassanSelim07 жыл бұрын
When you said: The entropy of the universe is always increasing. My brain played: In an isolated system, the entropy can only increase A species set on endless growth is UNSUSTAINABLE! **dubstep sounds** :D (Muse - The 2nd Law: Unsustainable, great song BTW!)
@upandatom7 жыл бұрын
+Hassan Selim haha I'll make sure to check it out!
@allocke94465 жыл бұрын
Good videos. Engrossing and well organized. Very good personality. Questions and answers...leave more questions... (an infinite amount?)
@SumNutOnU2b4 жыл бұрын
What if time really does go backwards? What if it's only a flaw in our psychology that makes us see cause-and-effect the wrong way around? The universe began as a big empty randomized mess of orderless energy, but the real Second Law of Thermodynamics is that Entropy is a non-renewable resource that always decreases until eventually it gets used up.
@dendritedigital24302 жыл бұрын
How does entropy explain veins of gold and silver, crystals of salt and diamonds, or the separation of water and carbon tetra chloride?
@jamesross14313 жыл бұрын
As always Excellent
@haniasdoodles3 жыл бұрын
My mom: Coud you finaly clean up your room? Me: No that would only make things more messy because cleaning my room would produce heat and there fore increase the entropy of universe! Also try rolling dice 46656 times. My mom: ...
@zerge692 жыл бұрын
Entropy does not increase with time. Rather, the increase of entropy IS time. In other words, "time" is the label we apply to the concept "increase of entropy".
@charleediaven62782 жыл бұрын
I propose a cosmos with a physical law of information increase. In terms of entropy this universe would have decreasing entropy.
@nileshbarla46397 жыл бұрын
it was an awesome video, Jade. Really appreciate it. :)
@upandatom7 жыл бұрын
Thank you! I'm glad you enjoyed it :)
@deadman7462 жыл бұрын
Increasing entropy characterizes what we think of a forward in time, but the issue is a lot more complicated than that. Stephen Hawking spoke of three arrows of time: (1) the psychological arrow, (2) the thermodynamic arrow, and (3) the cosmological arrow, that the universe always expands. The first two are the same because our brains are Shannon information processors, which require an increase in entropy to work. A reversible consciousness might have a different opinion. But what about the cosmological arrow? I have an idea I have never seen. Maxwell's equations are symmetric in time, so why doesn't radio go back in time? Richard Feynman suggested it did, but it eventually hit something and was reflected and exactly canceled out whatever went backward. Some hypothetical paths backward in time are necessary for quantum electrodynamics work. Since backward in time the universe was smaller, it is guaranteed to hit something. This is not true forward in time if the universe always gets bigger, hence the asymmetry.
@jadetan-holmes28417 жыл бұрын
Your video is getting more interesting and easier to understand for a non physicist like me annetan
@upandatom7 жыл бұрын
lol thanks mum
@jok20002 жыл бұрын
It's the difference in information. The information to go forward in time comes from the current state of the universe. Going backwards in time requires information that is not in the current state, e.g. the impulse an asteroid has on the earth is dissipated as heat and vibrations and a very slight change in motion of the earth. To have this happen backwards would require unrandomizing the heat, the information for which does not exist. I suspect if you have an equation for temperature in an asteroid crater, you'll see the asymmetry there.
@aforementioned7177 Жыл бұрын
I can mix water and oil and it will just separate with the oil floating on top. Did I reverse entropy?
@whatitmeans2 жыл бұрын
Every system with a finite ending time will fail to be time-reversible, and since current physics' classic solutions are always never-ending, there is a flaw in the traditional mathematics' tools used: since they are always holding uniqueness of solutions, they will never model accurately phenomena with finite duration, which left us with models that don't show the direction of the arrow of time on their 2nd order differential equations. As example, I have found an interesting issue with classic pendulum equations: if you consider the Drag Force as the classic Stokes' force: F=b*x' the pendulum eq. is (for some positive constants {a, b}): x'' +b*x'+a*sin(x)=0 a diff. eq. that under the transformation: t --> -t is not time reversible! (which is commonly only atributed to entropy by the 2nd Law of Thermodynamics). But if instead the standard Drag Force: F=b*(x')^2 is used, the diff. eq. becomes time reversible, but its solution are never decaying!... so it is needed to modify the Drag Force in something like: F=b*x'*|x'| to recover the decaying solutions, so somehow, the condition of been non-time reversible is required! But even with this improved drag force, solutions are never-ending in time, since the diff. eq. holds uniqueness of solutions due Picard-Lindelöf theorem... but, if I change the Drag Force by something like: F=b*sign(x')*sqrt(|x'|)*(1+|x'|^(3/2)) which resembles Stokes' Law at low speeds (non-near-zero), also resembles the quadratic version at high speeds, but introduce a non-Lipschitz component at zero speed, now the differential equation: x''+b*sign(x')*sqrt(|x'|)*(1+|x'|^(3/2))+a*sin(x)=0 will be having decaying solutions that will achieve a finite extinction time t=T< infinity (so x(t)=0 exactly after t>T), also with a diff. eq. is not-time-reversible. Hope you can review this, is easy to see it in Wolfram Alpha.
@angrytedtalks4 жыл бұрын
Wait, does this mean if I tidy up my room sometime in the future it will still be more messy than now? Schrodinger's tidy room... Also: quantum tidiness - by telling me not to bother, the untidiness becomes observed reality. Not telling me may or may not have the effect of tidiness. Direction of time is one thing, linear passage of time is not a thing. We are in a time bubble from the gravitational effect of a supernova explosion which created the solar system. Time relative to the rest of the universe is extremely warped. Disapation of this time bubble is why we think the universe is expanding at an accelerated rate.
@animistchannel29836 жыл бұрын
Time is a standing wave. It flows through itself in both directions. This is not philosophy, it is physics. Realizing this is how Feynman solved quantum electrodynamics, and he became fascinated with people who had known and used bi-directional time for practical applications for thousands of years. Then in 2005 someone built that damn eraser in a lab and messed with a lot of people's heads. This can also result in unexpected macroscopic events that most people try to not remember :)
@fidalgoverde5 жыл бұрын
Time could be both a standing wave and a multidimensional particle.
@OytheGreat7 жыл бұрын
Just landed here after I noticed a comment of your in a Vsauce video about spin. Your channel is great; the way you explain some complex topics is fun & straightforward; the mark of a great teacher. I really hope your channel will pick up many more viewers soon. Remember that when the foundation is there, it only takes a pebble to start rolling to create an avalanche... of viewers :)
@OytheGreat7 жыл бұрын
Oh, and in case you're willing to devote more to the channel than you already do, might I suggest looking into better sound equipment? Good content is definitely the most important thing, but since you already checked that off the list, a better mic could do wonders for a more pleasant and more professional video. Now there's quite a lot of echo from the walls.
@upandatom7 жыл бұрын
+OytheGreat thank you for the kind words! I'm just gonna keep making videos as best I can. Funny you should mention the sound, my new microphone just arrived in the mail yesterday! A few people were saying the audio wasn't great so I saved up and got a good quality mic. Hopefully you'll be able to tell the difference in the next video :)
@scottmacdonald81553 жыл бұрын
Fairly new subscriber but really enjoying your content. Have to say, I really should have paid more attention to physics in the past, so this is probably a daft question. With the example of the tea, external forces (such as gravity) over time would create a settling effect and in some cases the liquids would again settle into an ordered state (water and oil being the best example I can think of). Would this suggest either a) that there would be a maximum entropic state and then a gradual return to low entropy or b) that there is an influencing force in nature that is causing the increased entropy from current state to, ultimately, a different state of equilibrium with the influencing force over time (there could be more than one force that effects different things differently - but ultimately would tend towards a state of least resistant equilibrium over time between the forces and the particles that they act upon)? Or are neither of these things a consideration and this is merely really naive (and probably badly worded) question?
@giles5966 Жыл бұрын
Newton's law of cooling or equations for radioactive decay aren't time symmetric. I like the discussions about the low entropy at the start of Universe which I first heard on another of your vids.
@josephanderson90362 жыл бұрын
What does it mean when you make a drink with layered shots, then shake it up, and wait a little while, it unmixes and layers perfectly?
@stewiesaidthat Жыл бұрын
What does it mean when the girls in the bar get younger and prettier with each drink you take?
@aurelienyonrac3 жыл бұрын
Could a black hole be a pocket universe ? It would reveal gravity and dark energy to be the same force looked from different angle. What different angle ? We say the big bang is an explosion but one may find it useful to describe it as an implosion. Then the corolation with black holes is more clear. From the point if view of tge singularity, it experiences zero gravity since all the mass is arounding it and gravity is stored in the structure of the black hole. The collapse into a black hole looks like expansion from the point of view of the singularity.
@brassj674 жыл бұрын
Time actually does go backwards when you get down to scales around the Planck length. 10 to the power of -35m Particles of matter and antimatter pairs are continually being created and destroyed because energy is being borrowed from the future
@travellcriner68497 жыл бұрын
Something about this well-accepted theory doesn't satisfy me. So things are going from orderly to disorderly? Fine. But that has nothing to do with time as I understand it. For instance, things can go from orderly to disorderly all they want but who's to say events must happen moment by moment? I'm just not convinced things would happen moment by moment if there were no conscious observers to perceive it as such.
@jadetan-holmes28417 жыл бұрын
Travell Criner
@KetanSingh5 жыл бұрын
Entropy is a measure, and the second law talks about what kind of change to expect with this measurement as a function of time. I don't think it answers any 'why' questions though.
@djbslectures6 жыл бұрын
At the risk of being annoying: if entropy is information, does information stay conserved or increase (ignoring black holes sucking information out of the universe)?
@michaelcaldwell57864 жыл бұрын
What about life forming and entropy?
@potawatomi1005 жыл бұрын
Great video!
@Amazing_Mark4 жыл бұрын
Jade could have been a model. ❤️ Great explanation of entropy btw - I wish my University lecturers had been able to teach as well as Jade.
@babyrazor68874 жыл бұрын
or...the universe isn't expanding, it's the vacuum that declining. Expanding universe, declining vacuum, both produce the same instrumental observational results. And when the universal reaches a point in it's decline, the entire universe blinks out in a millisecond. Just because we can observe light from 427,000,000 years ago doesn't mean that what created the light is still in existence.
@stevedoe16305 жыл бұрын
Is this disorder definition of entropy the same as the idea of “universal homogeneity of energy”? For example... Orderliness: high energy to the left, low energy to the right. Disorderliness: complete mixture of high energy and low energy on a universal scale where everything is the same. (Which in some weird way, to me at least, seems like more order.) Also, how can the idea of an “expanding universe” affect this? In a static volume universe, I guess there can be a point of entropy saturation. However, if the universe is expanding, can there be saturation? I propose... a. Yes, if the rate of increasing entropy > rate of increasing universe. b. No, if the rate of increasing universe > rate of increasing entropy. Another question. If entropy affects time, and if entropy saturation would stop time, then can the expanding universe affect time?
@wallabywall-e15404 жыл бұрын
Well what if it is a result of the anthropic principle? Sounds like a cheap easy way out, but it is a solution nonetheless
@FatalError5017 жыл бұрын
Awesome post, keep up the great work. Big thumb's up.
@upandatom7 жыл бұрын
+Nuclear Punch thanks for the support :)
@someoneelse69515 жыл бұрын
Your all videos are really good. At 1:45 you say in future 'entropy of universe will be maximum and there wont be any difference between future, present and past'. can this mean in future time travel will be possible and after doing sufficiently large amount of forward/ backward trips, it would seem meaningless to say future/past/present. (activities performed then will alter almost everything at once as this seems to provide maximum randomness possible).
@carpballet4 жыл бұрын
I go around messing-up neat spaces.
@ryancroy5 жыл бұрын
Well, the 2nd law of thermodynamics only works if time goes forward. But if it goes backword, wouldn't the law of entropy be reversed? Instead of entropy always increasing, it would always decrease?
@joshuarosen62424 жыл бұрын
It means the same thing. The second law of thermodynamics is reversible in that sense. All it’s saying is that forwards in time means the same thing as increasing entropy so yes, backwards in time means decreasing entropy. It all still works.
@borntolive20973 жыл бұрын
"a point will be reached where entropy will stop increasing". Even if there is nothing to ever happen after the last black hole radiates energy; end of the universe; won't there always be dark energy to keep the entropy going?..just a thought that i have, the concept of entropy feels unnatural and more of a philosophical concept like that taken out of Shakespeare. So if entropy is always increasing and somewhere when time came into existence entropy was 0 after which it has been forever increasing; then like all other universal laws entropy might be changing form from something. So more the entropy less the other anti-entropy or antriopy. And what if only in the 4th dimension or higher can we perceive antriopy at work. Or possibly inside blackholes, if and only space time mean anything down there
@phs1256 жыл бұрын
Time began at Big bang, So the whole entropy thing just exists back and forth, and we just perceive it as time. Because we can't experience things backwards. Life is just a bunch of various entropy levels. Past and future doesn't exist, They are just a hill of entropy and humans can't imagine going uphill, consciousness just always falls downhill
@haydenpayne42987 жыл бұрын
Amazing video! I love to think about these type of things!
@upandatom7 жыл бұрын
+Hayden Payne thank you :) what else do you like to think about?
@haydenpayne42987 жыл бұрын
miss physics Space and the physics of it are always fun. Black holes, wormholes, the big bang and multiverse theories are some of my particular favorites. Thanks again!
@markdomingo65233 жыл бұрын
2:37 this was what I used to say everytime my former boss claimed that his god is a god of order
@manpsy1235 жыл бұрын
Nicely explained.
@douglasmcneil66894 жыл бұрын
Can you explain how the game Yahtzee works, if the chances of rolling all six's is so astronomically low. How is Yahtzee affected by the laws of entropy?
@SgtSupaman3 жыл бұрын
First, the number that comes up on a dice roll has absolutely nothing to do with entropy. They are just plastic in the shape of a cube; the side that faces up is inconsequential in regards to entropy. The way they roll is in a chaotic way, which fits in directly with the second law as mentioned in the video. So, the game of Yahtzee is entirely unaffected by/unrelated to entropy (beyond how literally everything else in the universe is affected). Second, the chances of rolling all 6s shown in the video is not representative of the odds for getting a Yahtzee. To start with, there are only five dice in Yahtzee, not six (so, at worst, the odds would be 1/6^5, not 1/6^6). However, even that doesn't tell the full story, because you get to roll three times AND you are able to set aside numbers you want from each roll. These two aspects increase the odds dramatically. The end result I came up with is that the odds of getting a Yahtzee are roughly 0.7%. That is just on one turn, though. When looking at how many turns you get to attempt it (13 turns to fill in all the score slots), the odds go up even more for getting a Yahtzee in an entire game. So, if you attempt a Yahtzee every turn (unlikely if you are actually trying to win, since you need a couple straights on the scorecard), you will have over 9% chance to get Yahtzee in a game (clearly much better odds than 1/6^6). I don't intend to lay out all of the math to get that result, but the method is this: calculate the probability of every single eventuality that leads to a Yahtzee and add them all together. For instance, getting no 1s on the first two rolls then all 1s on the third roll, getting all 1s on the first roll, getting three 1s on the first roll then one on the second roll then one on the third roll, etc. Of course, this must be for every number (so after calculating all the possible variations for one number, multiply by 6).
@labradoodleandpalz5 жыл бұрын
See I still don't understand why all living things can remember the past, but not the future. The present is connected to both the past and future in the same way, but for some reason I know what exists in the past, I have access to the memories that I formed there, whereas I have no access to my future memories. But why? What is it about entrophy that makes it so that a memory can continue to exist as entrophy increases, but it cannot continue to exist if you look at the universe in the opposite direction, with entrophy decreasing?
@timothylcrowe15 жыл бұрын
Their are 1.5 black holes being born every second. That's a spacetime topology with its new genus = current genus +1. Every 2/3s of a second. A new hole in the map for every new black hole. That's what drives time forward. An old unique universe superseded by a new unique one. Every second. Try having enough evergy to reverse time against a black hole forming supernova event.
@adityakhanna1137 жыл бұрын
A few things : 1) If the Thermodynamic arrow of time suffers a change, does this in any way affect the Psychological arrow. my unerducated guess, is yes. And could you do a series on more Arrows of Time? 2) Yes, that big bang was a bit misleading. 3) Well, but why does a low entropy state even come up in the first place? Isn't nothingness thus more likely? Or wait, is nothingness more ordered than stuff? Is it why there's something rather than nothing? We need some math.
@upandatom7 жыл бұрын
+Aditya Khanna1) Yes it does affect the psychological arrow of time. I was actually going to make the video about this but the idea was pretty complicated and went into information theory and I didn't have time to fully comprehend it myself, much less make a video about it! I may make one in the future if it one day clicks because it's such a fascinating topic. I would love to do more videos on the Arrow of Time! Thanks for asking :)
@rampersadarchilal87583 жыл бұрын
Talkie Do a video on if true infinity could exist
@leesweets41103 жыл бұрын
How do we really know time isnt going backwards? Our awareness would be regressing. We'd never know.
@swastikmajumder79035 жыл бұрын
well according to the third law of thermodynamics the entropy at 0k is 0 . But if the universe was at low entropy does it mean universe was colder than it is now ? Well then does the Big Bang make any sense ?
@piyushh88596 жыл бұрын
Then running by the speed of light does the entropy..... stop increaseing. ,As Albert said .....time stops moving by travelling by the speed of light ......how is entropy..related to speed in what we travell.....😕😕
@keramatebrahimi9435 жыл бұрын
The time of the past exists not the events that happened in past.just like when you travel from point A to point B,you know that the space that you traveled exist.if the space exist so does time.
@mohammadarshadpathan4907 жыл бұрын
how do blackholes contribute to entropy? how do they contribute to making matter disordered?
@AltayNuhoglu7 жыл бұрын
Hawking radiation - its a whole chapter on blackhole thermodynamics. This has yet to have been elucidated, so if you're an aspiring theoretical physicist spend your life obsessing over this and earn yourself a Nobel prize.
@upandatom7 жыл бұрын
blackholes are actually a result of entropy! clumpiness in the universe is actually entropy increasing because it's the opposite of a smooth, uniform density, which would be a very low entropic state.