I feel ya

For real, I wish I'd had this video like 5-6 years ago during my bachelors!

@@thegamesforreal1673 same

Definitely. I highly recommend this video to any chemical or mechanical engineer.

For real

Good

I think he got the idea to make a video about Entropy from the recent video by Sabine Hossenfelder, who covered the same topic.

Nope. I disagree on one part. Life support conversion from low entropy to high entropy???? This is where Derek is MISTAKEN. I bet he, like many other atheists, is a core believer in Evolution (humans coming from apes, etc). While I like many of his videos, he tends to be biased towards atheism. Even in Science, religion plays a huge role. Just training one AI neural network model for computer vision requires extensive amount of computation and energy. Not to mention all the data that needed to be extract and transformed. Statistically speaking, odds are absolutely 0% chance that Humans came into existence based on such theories. If I brought you a digital camera and told him I just found it on planet Y and claimed no one made it, scientists will start laughing. Plus, why did it have to be a biological life on Earth??? why not some sort of mechanical/electrical form of life????? TALK ABOUT HYPOCRISY AT ITS FINEST!!!!!!!

You just advertise yourself

@@cheesebusiness Well show me Einstein where the flaw of my logic is 🧐

A black hole entered the chat 😅

@@Blackpeopleslayer Username???

@@PlanetHertz is it bad🥺??

@@Blackpeopleslayer its so lovely, I don't think nothing can compare. A rose? 🌹

Only if you're in an enclosed environment ...

Me too dudes… That headache is actually diff. to a normal headache… It hits different hahahaha

in most cases, pain is healing, not to be feared.

You probably don't know thermodynamics

@@THE_ONE_WHO_ASKED1 I know God, does that count?

@@jeff_forsythe tf does that mean?

No one taught you about photosynthesis?

If watching a Veritasium video leads to me watching a SteveMould video with black holes instead of another Veritasium video with black holes; could that be considered a Spool Paradox or another example of a big photon converting into many small photons? Jokes aside, I love your videos and I lm glad you left a comment.

It's just life radiation bro.

One photon cannot turn into several photons. İmo.

​@@garrysekelli6776why not? If a high energy photon is absorbed, cant it can be later emitted in different levels? In a way that all the photons' energy when aaded up will be equal to the original high energy photon

I really miss those too

No offense to anyone who likes them, but I was actually thinking that they're just a waste of time. Like, I'm curious what Veritasium has to say on the subject, so what's interesting about what random people think about it? They don't really contribute anything to the video.

​@@cuthbertallgood7781hm.

@@cuthbertallgood7781 those short public interviews arises common misconception in viewer's mind, which is extremely important when it comes to learning via media.

@@cuthbertallgood7781 no that's fair, but I do like seeing what "normal" people think. It's a good refresher into what the average person believes or thinks.

Lemme piggyback on this, sans the PhD. 😂 The video gives me a pointer towards getting a grip on a subject that was very foreign until now. Thank you!

It is karma that keeps us on the ground, not gravity, but who cares about wisdom these days................................Falun Dafa

so true i am in my last year of highschool and understood entropy for the first time and it felt like an movie

If you thought the cinematography was really good here I'd watch Interstellar if you haven't already, easily the best depiction of the universe I have ever seen

I watched this video like 20 times now and it still gives me goosebumps every times

You're right! It Was nicely done! Wasn't trying to hear a physics lecture at the moment, but it was so well done, it really kept my attention. Can't wait to watch it over and over again so I really capture all of it.

that's cute

I know right🥲@@whoreslayer

haha, I tried this but got beaten up

i always said it was a creative mess xD

By any chance, do you still have the names of the books? I would be interested in reading them.

Indian education system which is destroying all young youths😢

Why did we integrate the work done by the piston and on the piston ( 6:54 ) . Is it applying the second law of thermodynamics(entrophy) meaning which formula? Correct me if I'm wrong. I'm just curious!

@@elrohifilmon2291 It is using the formula for work= force x displacement since the amount of work done on the piston is almost equal to the amount of heat produced due to work being high-grade energy.

@@astro18965 Okay thank you for your explanation It really helped!!! I think i should go look into my advanced physics studies I'm lingering in the past in grade 9 -10 physics , tho i really hate the idea of integration, just the concept behind definite integrals, area, volume etc.... Overall thank you very much.

You were a student but it seems your failed to pass. It's fundamentally taught, wtf.

i was hypothesizing entropy last night during a talk with my mom and i didn't even know what entropy was. just a good ol conversation about energy. made this video extra incredible.

yeah dude mental, did this with the big bang theory and thought I was a genius at 21 hahah, then i googled the next day. I'm now 34, never forget the night i figured out the universe based on a simple thought process of - everything is round

it does

@@kwokshseeBy energy, he meant pockets of energy inside those said particles within a system are clumped which means having less freedom to spread out, essentially meaning higher freedom, he used liberal language for more people to understand, if you're so knowledgeable, make a video explaining what's wrong! This reply makes you look dumb.

i have a black bf

What's a "stream" of entropy? Would that work if the sun was all around rather than in one direction?

@@MrCmon113 A stream of low entropy just basically means "high energy clumped together or fundamental particles with less freedom of movement", which then we spread out increasing our entropy. The entropy of the sun increases as we receive energy!

​@@kwokshseeLmao

he’s for sure a good science communicator, but doesn’t actually have a physics phd. If he really had one he wouldn’t need to flex about it.

​@zemsorg you should do research before you say things you are uninformed about.

@@zemsorg He actually does have a PhD from the University of Sydney in Physics Education. The point is, anyone who actually worked hard enough to get a PhD should be completely justified in bragging about it.

​@@zemsorgI don't think he even wanted to flex, it was more about proving to the old lady that he knew what he was talking about.

​@@samwilson3329 Well PhD in Physics education and PhD in physics are two very very different things. But it doesn't require a PhD to understand the basic physics and few fundamental laws of the universe. Also it's not guaranteed that people who actually have PhD in physics understand it better than people who don't.

No one cares that you don’t leave comments just say what you’re gonna say

I dont usually comment also, stil this guy shows that he is more showman than scientist. 24:31 "More than 10 to the 100 years from now," you can surly say more than from next satuday to next monday. :/ if he is PHD Scientist, should realy know scale of time he talks about.

@@coolkid7151 I care that he dont leave, no you go cry to your moma.

⁠​⁠​⁠@@Peter-vq1iv”10 to the 100 years” isn’t the same as “next Saturday to next Monday”. It’s not even a range, it’s a specific number… 10^100 years.

@@Peter-vq1iv Maybe don't jump to conclusions, he said 100 as the power of 10 not 10-100 years.

I agree!

OMG. THIS. YES. Especially the bit about the complexity at the end. That really made the light bulb go off.

Bro jee aspirant?

i have a black bf

@@preetamraj4713 Nah bro completed my grad 2 years ago working in oil and gas now.

Amen to that. I came here to say exactly that! To the letter.

@@marcelboersma Yeah me too. Same thoughts. One of the best, definitely.

Yeah who need religion when truth is stranger than fiction

@@jhayes0128 because science cant explain what caused the universe or big bang happened?

The video itself was beautiful indeed, the music helped a lot too. Nearly teared up a couple of times.

That was good

good one

I'm glad to exist at a pocket of the universe that has exactly the right amount of entropy for a Veritasium video to exist.

Best answer 😝

Propaganda can have that effect.🤫

Agreed! Also Veritasium getting back to his roots of interviewing people on the street :) love it

Also can't miss the way he integrated the interviews into the video making it more diverse and relatable, brilliant

I agree as well, plus I might know the answer, but if someone asked me out of the blue on the street, I would not be able to give it.

Veritasium: Im a PhD physicist Old lady clearly confused: Oh ok carry on 🫡

😊

Its not bad, the handwaving was blended in nicely. Hardly notice it if you dont already know its coming, like a magic trick.

Yea, same here. Knew all the details pretty much, but damn. He's making pure art of videos. I am always perplexed by his absolute genius ways of making videos.

Me too. The way he explains a semester of physics in layman´s terms, while still being rigorous and interesting for an expert, is just extremely impressive. He is just such an inspiring science communicator.

100% - amazing to listen to. The best so far

@@deltalima6703 handwaving?

Remember, no one can ever be too old to learn and experience!

@@cj6004 Amen to that friend!

@@twofishes8846 💖✨ cheers to knowledge

Is it scary to be 69 and figure out a new passion? Do you feel like you might miss out on new discoveries or maybe not have the time to learn as much as you want? I am 21 and i am already worried about living in a time where I will probably miss out on many discoveries and on many radical societal changes. What's your philoshopy on this?

@@alexgeo2615 we live at a very fortunate moment in time, where many exciting discoveries are currently happening, and many essential developments have already been made that make our quality of life excellent. Every time period will have its challenges and its frontiers to explore. My perspective is, don't worry about what you might miss out, go dive in and enjoy what there is. There are an inexhaustible number of exciting and world-improving things we can work on, passions we can enjoy, etc. Make the most of the time you have, that will minimize regret.

Im no student, just a hobbyist interested in all things science, but damn the whole shine a light on random atoms and getting life was mind-blowing for me. THIS is the argument I wish more OoL scientists explained. Abiogenisis in a quote.

the earth DOES take in more energy than it radiates. the core of the earth absorbs radiation from the sun and the core grows.... expanding earth etc. the largest dinosaurs could only have survived on a smaller earth with less gravity... fact.

Lol

@@wwlittlejOfficial That's quote was the stupidest thing I ever heard In science

@@youcefmoulla1828 because ur not doing it right, science.

Yes Exactly... I have a question though... if we assume the world to go on for an infinite amount of seconds... at a certain point everything can suddenly do the improbable thing and go towards low entropy right? Based on what Boltzmann said, going toward lower entropy is extremely improbable, but if time goes on for infinity, every improbable thing will happen once... so after the heat death of the Universe, there will come a time when the big bang appears again...

This comment 💯

Try einstein 6yr old and explain it as such

​​​@@runtimeterror1358you're right! At a certain point few things can suddenly do the improbable things which was least likely, but there's a larger basket what happening around. "If after heat death, all the least probable things will happen then it's also true to say all the most probable things will also happen" So in a way the the whole scnerio remains same... And after heat death there'll be nothing that will happen.

​@@runtimeterror1358Very interesting comment!! After heat death, there'll be no concept of time I guess. Think about it, no entropy, no cause/effect, absolute zero temperature & no particle moves, no space-time curvature, no concept of time, nothing!!!!

Actually that is the part I didn’t understand. How is gravity causing it to be low entropy? If someone could answer

@@eshaansangodkar7534 Because gravity causes things to clump together but in the early universe things appear to be evenly spread, which is a very unlikely configuration which means that it will shift out of that configuration into a more likely one which is why it has low entropy because of that inevitably shift of states.

@@MrAwdse if things were evenly spread then it had high entropy not low? I don’t understand the gravity part either

​@@MrAwdseFrom what I can understand, you are implying that there is gravity on the early stage of the universe, is that right? If so, then why don't all matters on the universe clump together into one because of gravity, instead of expanding as to how the universe is now? Sorry, I am very, VERY confused on that part 😖

=== You need an ordered universe first. The energy from the big bang a first cause event originated in a compact ordered state. Not by accident. Now, entropy is at work. Already the universe is 13 + or - billions years old. The creation of elements took a few billion years to achieve. Now a terraformed earth doesn't just happen and also requires stepped progress. Not by accident peoples. Your brain that is an organic computer no way could have come from dirt. Impossible. Thinking abilities and consciousness are because of complex formulaic chemical equations also not by accident. No way the laws of physics or chemistry could allow and cause your brain, an organic computer to happen from dirt. Impossible ==== Evolution = Self Assembling Atoms = Impossible ====

@repentandbelieveinJesusChrist8 yeah yeah whatever...

Question. What if we take a small black hole (let the temperature be T=50000 Kelvin - the radiation of photons with low entropy) and we send particles or photons with high entropy into this hole. It turns out that the black hole will absorb high entropy and radiate low. In other words, the energy from the cold will go to the hot?

@repentandbelieveinJesusChrist8 His name was not Jesus. Your church couldn't even not lie about his name. Your church doesn't care about the truth, they only care about if you believe in what they want you to believe in. They don't even believe in it themselves. Most pick and choose to believe in the things they want, and just ignore the rest. You can even ask one christian something, then another, and then another and you will get three different answers but they all swear their answer is "the" truth.

​@@criticalthinker420okay christian "missionary" comments are annoying but this is straight up religious discrimination and is not right.

​@@drenz1523 calling out Religions is correct. End the stupidity

it must have been so cool to experience the transition from black and white textbook image to graphics in today’s time

@@nuggetz9380 Yeah, cool to be old.

The diaspora of man's convictions being cradled into submission longs to be discovered through the vicariousness of Terran Myths:Inception. Farewell🙏

@@robertmudrow8034 in a way, yes it is

​@@nuggetz9380But now we'll get to experience going from a video to VR or whatever the future holds for us lol

imho this is his strength. Making mathematical/theoretical science relateable

Brilliant what you can grasp when your profs aren't just trying to force equations in your mind ❤

And then you still have people like my boomer dad who won't even take a look at anything on KZfaq because "Internet bad" but will happily watch TV all day long lol

I've been there and know what you mean. Courses would have been so much easier -- and FUN -- if our courses were taught by people like Derek, Tom Hanks, Matt O'Dowd, Joe Hanson, and the like.

ehh how did he make it less of a nightmare for engineers? this whole comment is absurd

It is also an absolutely perfect and instantaneous refutation of the old creationist argument that the emergence of life by natural selection supposedly violates the 2nd law of thermodynamics.

Interestingly this is the exact same example Sabine Hossenfelder used in her video about entropy 2 weeks ago. Overall the 2 videos are very similar 🤷‍♂️

I also learned a lot about entropy as a materials science student. A key piece that's been left out is that some entropy generating processes are fundamentally not reversible, and so they can't be used to generate work. Mixing milk and tea is a good example. When you mix milk and tea, the entropy increases quite a bit. However, it doesn't release heat, and you can't use the mixing of tea and milk to do work. If you wanted to separate the milk and tea however, you would need to do quite a bit of work. The point is a lot of entropy is being produced all the time even without the ability to do work. For me, the relevance is in creating alloys, and in refining ores or recycling metals. It takes a lot of chemical and heat energy to separate elements into pure forms. Then you combine them together in mixtures with various properties, but you don't get any of that energy back.

I wonder what the next universe is going to be like. Physics is interesting but can only play by the rules of this current reality.

​@@repentandbelieveinJesusChrist9Amen 🙏

That is quite LITERALLY what I was thinking. I know next to nothing about physics and after watching this video I felt my IQ jump up about 100 points. LOL

lol me to

It's THAT important though... that's why he went that hard imo...

The sun is a wondrous body. Like a magnificent father! If only I could be so grossly incandescent!

Soo true

This is why science works. It has the power to correct and change with new insights.

​@@sander_bouwhuismath

Hawking's jaw dropped too💀 (I'm sorry for this awful joke)

"Oh dang, guess he was right"

Happens ridiculously frequently

donate 😉

click the three dots and hit a super chat ;) (thanks)

​@@dudo626 🤣 😅😊

@@PaulWebsterLincolnuumu

My dream is become a aero space engineer . Now I am studying final year high secondary.. can you explain about the importance aerospace engineering like about work what we actually do it and we studied about the universe and space or not and what are subject covered in aerospace engineering.. please 😊

I've said for years now, that the way we teach science (US); splitting them into different subjects, does our understanding of the principles a disservice. Sure, it's easy to understand subjects when compartmentalized, but it doesn't allow for lateral and connective understanding of all scientific subjects.

Exactly @lucaskytl, I got the same feeling when I watched the video about mandelbraught set

Like I said, he makes learning easy.

I'm just a truck driver. But with this knowledge I shall be a truck driver with a bit more knowledge

dude ... why you so low entropy?

man i loved visiting trieste a couple weeks ago but i hated how much car traffic there is. Food was great though!

I’m only only a formally uneducated intern at a mechanical engineering company and this video made me emotional. I should really take a thermodynamics class or something.

@@NLghost010 you must be crazy to drive in Trieste ahaha

io mi emoziono a vedere un italiano sotto questo video...e pure intelligente (ti invidio)

I disagree. You have thousands of "really smart people" who just don't teach that well despite choosing this path. Geniuses even. He's special when it comes to these videos.

No human is smart, otherwise we would live in a perfect world...look at the mess, past, present and if God does not intervene the future is unimaginable. Only God is smart, agree ? Believe the ONLY gospel that saves today which is 1 Cor15 vs1-4 KJV Bible.

There are plenty brilliant men that can't teach. This is what happens when a talented teacher, along with a team of solid, educated and talented group of support staff create an educational video (with endless hours of time put into the project) .... this is teamwork, talents and time. No university professor could compare in a lecture. Impossible.

​@@calamorta He and his entire support staff. This isn't a one man operational and took a lot of time and effort.

​@@dennisklopper1818Well, you're the one who's definitely not smart if you believe that nonsense 😅

And for free

Black Holes grow even without eating ordinary matter. Therefore, gravitational forces can reverse entropy after reducing the amount of Dark Matter.

That's how I feel when my s.o. talks to me about anything. At the end of being talked at nonstop for several minutes, I can clearly, completely and accurately sum the entire talk up into 1 sentence. Don't waste time. Most precious resource in existence to us. Just jump to the point😂

i hope he didnt say entropy every time he talks about entropy. it always confuses me everytime the word high and low entropy is mentioned. he should have used "spread of energy is low/high" or something.

@@zjpdarkblaze It was necessary for him to use that term, since everything is framed in terms of 'states'. An earlier state of time = low entropy; later = high entropy. Spread of energy is just more words to say same thing.

entropy is when everything tends toward death and destruction grr 😡😡

Stephan doesn't get enough credit

. v!😅.

​@@bonkmeabeab3563 Degree of randomness

now tell us 😁

Hello. Keep thinking about. I am a doctor, and from many years ago ,the entropy discovery change my life and the perspective on human beeing, their reaction, the cause of boring, cause of the war, cause of love, cause of friendship, cause of happiness. Everything relates with entropy. Even why we sleep, the way substantia nigra in our brains work is a entropy function machine.

Hello good sir, you mention being a physicist and an engineer, may I ask the academic roadmap you took for that? As in what degrees did you get?

My favorite "joke" that my PhD advisor told me was, "Even thermodynamic professors don't understand entropy." It is one of those things that people like to sum up with, "chaos" but that doesn't really relay the idea well when it comes to what energy is doing and why we use certain terms in the equations.

I asked chatgpt about this same thing and it's surprising that it's almost the same as this video 😮 Prompt- Try to relate entropy with the sun, earth and universe, if possible include philosophy also. Ans- In the context of the sun, earth, and the universe, we can explore the concept of entropy from different perspectives, including scientific and philosophical aspects. From a scientific standpoint, entropy plays a role in understanding the natural processes and evolution of systems. The sun is a massive source of energy that radiates heat and light into space. This energy flows from a high-energy state (the sun) to a lower-energy state (the surroundings). As this energy disperses and spreads out, it leads to an increase in entropy. On Earth, entropy is related to the concept of thermodynamic equilibrium. Over time, energy and matter tend to spread out, seeking a state of equilibrium or balance. For example, consider the water cycle, where water evaporates from the surface, condenses into clouds, and eventually precipitates back to the surface. This cyclic process involves the transfer and transformation of energy, but it also leads to an increase in entropy as energy is dissipated and distributed. In the broader context of the universe, the concept of entropy is linked to the idea of the arrow of time and the second law of thermodynamics. The second law states that in a closed system, the entropy tends to increase over time, meaning that disorder or randomness tends to prevail. This idea is often associated with the observation that systems naturally evolve from states of low entropy (high organization) to states of high entropy (disorder). From a philosophical perspective, entropy can be seen as a metaphor for the nature of existence and the impermanence of order. It aligns with the philosophical concept of change, decay, and the fleeting nature of things. The increase of entropy symbolizes the inevitability of the passage of time, the dissolution of structure, and the constant transformation of the universe. In summary, entropy is a fundamental concept that relates to the flow of energy, the tendency of systems to move towards equilibrium, and the increase of disorder or randomness over time. It has scientific implications in understanding natural processes and is intertwined with philosophical ideas about the nature of existence and the passage of time.

@@Entropic_Alloy lol yeah I think they don't really know 😂. wish this video available when I was a student. but it's never too late because it can be useful in my current work also

😂😂😂😂 *Atheists claim that they are intellectually superior to religious people because they are willing to question their beliefs, whereas religious people are dogmatic and refuse to question their deepest beliefs and won't consider evidence that could potentially undermine those beliefs.* Well, have you ever heard an atheist say: "I wonder if constantly increasing individual freedom is a good thing." "I was wrong about democracy being a viable system." "Maybe the sexual revolution was a mistake." "The evidence shows that equality of the sexes is destructive." "Let's have a debate on if freedom of speech and religion is good for society." "Could it be that women need fewer rights?" I have never seen an atheist raise these questions or hold these positions up to serious scrutiny. Nor do they provide any evidence for their beliefs on these matters. They simply assert them and ridicule and mock anyone who disagrees with them.

I had a science teacher back in grade school that set me up to think about things one step outside of what we immediately observe and I have treasured his insight my whole life.

This is standard interpretation of entropy here. I personally was taught in Kyiv polytechnic. But it's the same country -wide.

@@rueben225 That teacher made you smarter for sure. I always try to think "outside the box" and reason things from first principles.

@@512TheWolf512 Western education is likely less standardized, not coming from a Soviet style command structure/more rigid/traditional culture.

I had a teacher called Dr Ollerenshaw in the UK. He was the most silly person I've ever met! He had "fun tie fridays" and "two tie tuesdays" that he'd normally wear one around his head 😆. My fave teacher hands down

What if you smash the cube?

@@Tony-il8ly 🤓

What happens to the entropy if you solve to cube by removing the stickers? :P

@@XtreeM_FaiL the cube owner becomes quite angry so the entropy moves there

So my life peaked at age 20? That’s deep

Not necessarily true. The best way to explain entropic systems is in the form of clocks, watches, and wind-up toys that run down and stop when the energy in their spring or their battery is spent. That's the effect of entropy. 😊

well even at the beginning he's already using symbols used in calculus and what not. You do have to have some background, at least from high school.

@@jedcasillas5171 I disagree, I'm dumb as bricks and I still came away more or less understanding what Entropy is now.

@@jedcasillas5171it was only a part of it, you could understand this video with or without calculus. You’d miss out on some mathematical details, but the premise is still clear.

Wtf. I wish I didn't understand this

the earth DOES take in more energy than it radiates. the core of the earth absorbs radiation from the sun and the core grows.... expanding earth etc. the largest dinosaurs could only have survived on a smaller earth with less gravity... fact.

Did I understand correctly that the way energy moves between the bars is the same general concept of time moving forward? The states where entropy decreases are so extremely unlikely that it can't actually happen, same as the states where heat moves from cold to hot being too unlikely for them to happen? If so, that is mindblowing? Would that also mean that time travel is possible _in theory_ if we manage to reverse the increase in entropy?

Thank you for actually describing what the video is about. Not even Veritasium could be bothered to do so. 🙄

​@@cvbattum Well, we can say this in reverse. If (past) time travel would ever be possible in future, it would be accompanied by the decrease in entropy of the universe. Which ultimately leads to the reason why it won't ever be possible in the first place. 😅

There is this absolutely simple example to explain the increasing entropy of the universe: Consider a balloon inflated to say 20% of its full capacity. Now attach suction cups all over its surface and pull in all directions. The balloon would stretch, and as a consequence the entropy of the air molecules inside would increase, just the newly created volume inside would be filled by vacuum. The universe can be thought of in a similar way.

Bro thermodynamics is not fun 🤣. Fluid mechanics is where it’s at

I was thinking the same exact thing lol

A few problems: 1. Entropy has never been observed to reverse without deliberate intervention. This flies in the face of the ‘it can all happen itself given enough time and energy’ fallacy. 2. 19:09 - This is an especially egregious case of pseudo-intellectualism. It is quite frankly shocking that it is included as a credible statement. Just because life (while living) is compatible with the second law of thermodynamics. It does not address the so-far unexplained way life as a complex orderly system can arise in the presence of the second law; which is expressly hostile to such complexity arising, and expressly favorable to it decaying. Yes, life helps dissipate heat energy. But nothing here has spoken to how this dissipation (entropy) is anything other than extremely hostile to the arising of complex orderly systems such as life. This is like saying: “since petrol makes a car run, petrol explains how a car was created” 3. It is impossible that all energy from the sun is emitted back away from the earth. Some is converted into geological formations such as coal. And if you claim that that will get emitted one day when the earth explodes - then the entire question posed to the public at the start is ridiculously impractical. 4. 23:50 -Celestial bodies break up all the time. Comets have been filmed breaking up in space.

​@@personal4528​1. Entropy has never been reversed for CLOSE systems. It's possible for it to reverse but as said in the video. The probability is next to 0. 2. He was making a hypothesis that the 2nd law of thermodynamics maybe the cause of life. Now we don't know if it's cause and effect or just correlation. But including this in the video isn't a huge issue, might not be entirely correct but something to ponder about nonetheless. 3. It was never stated that the energy is entirely emitted away from the earth. It was stated that Most of the energy is emitted/dispersed away from the earth while some is taken in to sustain life and other processes. 4. Again, you need to listen properly, he said that celestial bodies break up all the time and the reverse isn't possible. I hope your doubts are cleared.

@@kgv5179 1. no, read carefully: Entropy has NEVER been observed to reverse without deliberate intervention. Name a single observed, non-hypothetical instance of spontaneous entropy reversal without intervention from an designed method. Furthermore, the universe is a closed system. To say that the second law of thermodynamics does not permeate in a scalable manner across the universe is grade school level nonsense. 2. No it was not a hypotheses. It was an ignorant conclusion based on no data, and should be derided as such. 3. 17:17 he says the same amount gets emitted. Again false. Some becomes geological as coal. 4. 23:55 "we never see... a planet unmix into the cloud of dust and gas that made it up" - false. Comets sublimate into nothing. Stars supernova. Decay is everywhere. This is a slight of hand to try make entropy the opposite of decay, when in fact it is the greatest facilitator of decay.

-ISNT IT STUNNING VIDEO?!)-

I still dont understand it lol

​@@Gave-rf1hrhow not? Or which part?

​@@DBeskar6605if u have 138 iq, then u will observe and decide u won't believe those sentences blindly lol

heYYY

Keep in mind that it requires the universe to be expanding or staying the same size for it to happen. There's still a chance that the universe isn't going to expand forever, and even in a state of heat death it may contract, pushing everything back together into a state of low probability. Given enough time, all probabilities will happen. I see no reason why this wouldn't also.

@@vanyel_etc8695​​⁠given enough time, all mathematically possible things CAN happen. Not all mathematically possible things will happen, as the occurrence of one can and often does prevent the occurrence of another.

On the upside, nothing happening includes nothing capable of having an existential crises about nothing happening :D.

​@@vanyel_etc8695when the universe stop expanding i think we have reach max entropy

You should read Stephen Baxter. He wrote some amazing novels that cover the consequences of the heat death. I think the specific title was "Time", though his other notes are equally as good and cover other big cosmological subjects.

Just remember, learning is one of the most enjoyable human activities - and unfortunately sometimes schools tend to beat the fun out of learning. Glad you're getting the fun back.

202 likes and 1 reply lemme fix that

@@adamplace1414yeah

Look into Donald Hoffman's work if you want to get proper philosophical :)

"forgot that joy of wanting to know", wow, that phrase makes me feel bad about what you've been through bruv.

So nicely said. This video really helps sum up energy concepts in a way that create larger understanding. Following lengthy math, we sometimes forget what the core of some of those calculations stem from.

Altho it goes more on a quantum level, I really liked Carlo Rovelli’s explanation in “The order of time”. Even he mentions how there is not such a thing as arrow of time but instead the illusion of it depending on the scale you examine a system.

I'm getting my bachelors in chemical engineering right now! im currently a sophomore and taking thermodynamics, thought this was really cool

I have a ChemEng masters and actually really enjoyed thermodynamics (great lecturer, always helps). I still learned something from this. I do feel it rather skipped over the fact that, aside from fossil fuels and nuclear, the sun's incident energy is all that we get. Therefore it should be considered something of a budget, in synergy with the planet's existing energy systems and with total respect for this concept of entropy (economists in particular need to learn this). Especially now given the increasing challenge with climate change.

well, the glory of physics is just changing your timelines to make it correct. So in terms of chemical engineering, this is a vast oversimplification based on extending the timeline to make it net out. Instead, you have to be practical

How do you get a master's in any engineering field and not understand freshman thermodynamics? It's super basic stuff.

​@@feynman_QEDbut just right for those who know a little bit and are looking to learn more.

I remember learning about entropy in middle school. I had no idea what it is. Why is "chaos" a thing in physics. This video actually explained it to me.

​​​​​@@feynman_QEDou have to be so boring and pedantic about it? In the world we live in not everyone should have deep and intimate understanding of every topic of science. Videos like this DO give actual knowledge to viewers, albeit on a surface level, but that surface level actually gives a lot of benefits. Specifically - widening persons world view, satisfying and at the same time encouraging very useful need for learning new things and also allowing person to engage in simple discussions about explained topics. It also definitely gives an ability to solve simple problems on this topic or explain it to someone else. There is rarely any need for an average Joe like me or you to know about topics like this in more detail, but if you would need it - videos like these are still useful because that surface level knowledge allows you to point yourself in the right direction for learning further. People being overconfident about their knowledge of topics have nothing to do with Popular Science, only with their own arrogance that they need to coreect themselves.

@@feynman_QEDwhich books would you recommend to start studying physics, I am interested in doing so and I would like to know your opinions

​@@feynman_QEDwell I like being challenged by complicated ideas like these, dont really know what your suggesting, that they dumb down these videos, and oversimplify them to the point that they become inaccurate?

It was always great, has only gotten better over the years!

@@erock7073 So, what he said. 👍

Glad you got back on track... the butterfly effect is awesome.

@@dhgmllcshea5038 thanks alot! I hope you did well too ❤️‍🩹

“Or (the Unbelievers’ state) Is like the depths of darkness In a vast deep ocean, Overwhelmed with billow Topped by billow, Topped by (dark) clouds: Depths of darkness, one Above another: if a man Stretches out his hand, He can hardly see it! For any to whom Allah Giveth not light, there is no light!” [Al-Qur’aan 24:40]. Suhayb ibn Sinān Ar-Rūmi (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "How wonderful the affair of the believer is! Indeed, all of his affairs are good for him. This is for no one but the believer. If something good happens to him, he is grateful to Allah, which is good for him. And if something bad happens to him, he has patience, which is good for him." Sahih/Authentic. - [Muslim] Join Islam for goodness in this world and the hereafter. Allah will save you from darkness inshallah.

I haven't looked it up or anything, but I've heard that HVAC is essentially transferring heat from one place to another...or making a massive group of atoms and molecules vibrate less via transferring their shakiness to another massive group of atoms/molecules somewhere eslse. What I don't get is how that transferring process is performed in a machine made out of stuff we can and do produce on a massive scale. I mean, I can heat up an ice cube with my hand to perform rudimentary HVAC stuff by just holding it for awhile...but how the hell do I make the ice cube even colder than it was via transferring its thermal energy someplace else somehow?

@@dakotadillon5981 Well you’re already some of the way there understanding molecules moving and heat energy. HVAC pretty much is entirely based on the pressure temperature relationship. The higher the pressure the higher the temperature. In HVAC a machine will have a refrigerant that has properties that are beneficial for us when manipulating its pressure. The machine will act as a pump rapidly reducing the pressure of the refrigerant causing the gas to expand and release a tremendous amount of energy creating a cooling effect. Think liquid nitrogen. Once it’s exposed to our natural atmosphere the pressure holding the molecules is lower allowing it to expand and become very cold. Refrigerant will do this in the machine and become cold. Then it will be exposed to a cooling medium which in your home is the air inside. Another law of thermodynamics: Heat will always transfer from the warmer body to the colder body. The heat in the air will transfer to the cold refrigerant. The machine will pump the refrigerant back to a much higher pressure. This higher pressure will allow it to condense at a relatively high temperature back into a liquid refrigerant at which point it rejects heat away from the condenser to a place where it is less objectionable like outside your home. I always say that hvac machines act as a heat energy vacuum, pulling heat energy from where we don’t want it and placing it where it’s no longer a nuisance to us. It is essential to understand when changing states from a liquid to a gas/ vapor a large amount of energy is released. Like water refrigerant will boil off and condense at different temperatures based on the pressure it’s under. A higher pressure creates a higher boiling point as the pressure is acting on the molecules not allowing them to expand and cool down. This is why we sweat not because our sweat on our skin makes us lose heat but when the sweat evaporates from our skin energy is released creating a cooling effect for us. Since there is no such thing as cold ( just the absence of heat ) if you lower the pressure the molecules will have more space between them which creates the cold condition. The earths atmosphere acts as a kind of container trapping heat and applying pressure allowing heat energy from the sun to remain and warm our surroundings. One of the many reasons earth is such a special place. This is a fairly poor explanation of Refrigeration theory but really I just want to illustrate that it wouldn’t be possible without physics and how what we know about the physical world informs how we can manipulate this science to our benefit and understanding.

@@dakotadillon5981 Let's break down the HVAC process: Basic Principle: Everything is made up of atoms and molecules. When these atoms and molecules move or vibrate quickly, we perceive that as heat. When they move slowly, we perceive it as cold. The goal of HVAC systems is to control the speed at which these atoms and molecules move, thereby controlling the temperature. How HVAC Works: Heating: This is straightforward. You add energy (like burning gas or using electricity to produce heat) to make molecules move faster. Cooling: This is where it gets interesting. To cool a space, you need to remove heat from it. This is done using a process called refrigeration. Refrigeration Cycle: Evaporation: Inside the part of the HVAC system that's meant to cool (like the inside of your fridge or the indoor unit of your air conditioner), there's a coil filled with a special liquid called a refrigerant. This refrigerant evaporates (turns from liquid to gas) and in doing so, it absorbs heat from the surrounding area. This makes the surrounding area cooler. Compression: This gas is then compressed by a compressor. When you compress a gas, it gets hot (think of it as squeezing the molecules closer together, making them move faster). Condensation: This hot gas then flows to another coil, usually outside your house or the back of your fridge. Here, the gas condenses back into a liquid, releasing the heat it absorbed earlier. This is why the back of your fridge is warm. Expansion: The liquid refrigerant then goes through an expansion valve, where it expands and cools down, ready to evaporate again and absorb more heat. Your Ice Cube Analogy: When you hold an ice cube, your hand is warmer than the ice, so heat flows from your hand to the ice, melting it. To make the ice cube even colder, you'd need to remove heat from it. That's what freezers do. They use the refrigeration cycle to continually remove heat from the inside, making it colder and colder. In essence, HVAC systems are sophisticated ways of controlling where heat goes, either adding it to a space or removing it. The machinery and chemicals we use (like refrigerants) are specifically designed to be efficient at this heat transfer process. Your hand can both give off and absorb heat, depending on the circumstances. Here's how your hand can remove heat: Difference in Temperature: Heat naturally flows from a hotter object to a colder one. If your hand is colder than another object, heat will flow from that object to your hand until they reach thermal equilibrium (i.e., they are the same temperature). Conduction: When you touch something, heat can be transferred directly through the materials involved. This is why a metal spoon feels cold when you first pick it up from a drawer - it's conducting the heat away from your hand. Convection: If your hand is cooler than the surrounding air, it can absorb heat from the air. This is especially true if there's airflow. For example, if you've ever wet your hand and then waved it in the air, you've felt it get cooler. This is because the water is evaporating (which requires heat) and the moving air is carrying away the heat. Radiation: All objects emit infrared radiation. The amount and wavelength of this radiation depend on the object's temperature. If your hand is cooler than its surroundings, it will absorb more radiation than it emits. Evaporation: This is a significant way your body, including your hands, cools down. When you sweat, the sweat evaporates, which requires heat. This heat is taken from your skin, cooling it down. If you've ever put rubbing alcohol on your skin, you've felt this effect strongly, as alcohol evaporates faster than water. However, it's important to note that while your hand can remove heat from objects warmer than it, it's not as efficient as the mechanisms used in HVAC systems. The human body is designed to maintain a relatively constant internal temperature, so while it has mechanisms to shed excess heat or generate warmth when needed, it's not designed to function as a refrigeration device. Cooling an ice cube with a human hand presents a paradoxical scenario. Under typical conditions, a human hand is warmer than an ice cube, so if you were to hold an ice cube, heat would transfer from your hand to the ice, causing the ice to melt. Let's entertain the idea of a human hand cooling an ice cube. Here's what would need to happen: Hand Temperature: The temperature of the hand would need to be lower than the ice cube. This means the hand would need to be colder than 0°C (32°F). This is not a natural or safe state for human tissue. Prolonged exposure to such temperatures can lead to frostbite. Heat Transfer: If the hand were colder than the ice cube, heat would flow from the ice cube to the hand, causing the ice cube to become even colder. The rate of this heat transfer would depend on the difference in temperature between the hand and the ice cube. External Factors: The surrounding environment would play a role. If the ambient temperature is warmer than the ice cube, the ice cube would also be gaining heat from the environment. To effectively cool the ice cube, you'd want to minimize this external heat gain. In reality, achieving this scenario would be highly impractical and potentially harmful. The human body is not designed to function at temperatures below freezing.

​@@dakotadillon5981have you ever held a can of air duster upside down and sprayed it? Mysteriously cold right? Start there, but close the system as you think through it. Remember the components of an air conditioner e.g. compressor, Freon, etc. It'll make sense to you.

​@@dakotadillon5981the channel Technology Connection has a really good video explaining how it works if you are interested

I am currently pursuing electrical engineering course and I have come across thermodynamic unit and is really awesome

That's *likely* because a teenage brain is not equipped for abstract thought needed to grasp concepts such as entropy. That is, even if Derek was your secondary physics teacher, it's still more likely you would not have gotten the explanation of entropy. Science can be enjoyed more when you're past 20.

​@@shadewood3083exactly. im in first year of high school and our chemistry teacher is an absolute GOD. he explained all the concepts mentioned in the video to us during our thermodynamics lectures and the way he explains it is just beautiful. he's been teaching multiple classes since 2003, yet the gleam in his eyes when he explains second law of thermodynamics to us is incredibly inspiring. like he's been teaching THIS long and he's still like, "isn't science amazing?"

@@mimichalek a teenage brain is only lacking development in the prefrontal cortex which regulates thoughts, actions and emotions... they are not dumb, just emotionally chaotic and bad at judging consequences

But don't people know that heat through sunlight comes in from the sun during the day and radiates out to space at night? That answers the premise that he starts this video on.

The crux of complex life, however, to reverse energy comes down to genetics. The number of all possible gene arrangements unimaginably outnumbers all those that could have occurred across all organisms that could have existed on earth despite a period of 4 billion years. Do the math. The dilemma? Despite this realitively immense small number of gene arrangements that ever existed, arrangements of such that produced increasingly evolving complex life through random changes emerged. This could not have occurred based on a Darwinian natural selection search engine alone to produce so many successful complex life forms with such relatively few tries. Its all a matter of entropy. The probability is to low. Neither could any known natural or man made algorithm weed out such evolving life forms in so few tries. Its not even close. God exists, and so does evil, as evident in the fact billions of people will soon destroy each other with the help of high-tech. Realize the same evil is in you and accept the blood of Jesus to redeem you while time remains.