Entropy and the Arrow of Time

What is entropy? In what fields is it useful? And how does it explain the direction in which transformations occur? All these answers in 12 minutes!

0:00 - Introduction
1:30 - Entropy in physics
4:31 - Entropy in other fields
6:25 - The arrow of Time
10:47 - Conclusion

This video is narrated by Octave Masson.
And if you liked this video, you can share it on social networks !

Alessandro Roussel,

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[stoyanrahnev]

The best and most underrated science channel, hands down. This channel doesn't need huge explanation, tons of formulas and images. A simple sentences and simple images, so a 10 year old can understand it, which means he has mastered it to incredible degree. If there were more physics teachers like this guy, I am sure that there will be more people interested in physics. Nothing I can say more, keep up the good work and stay safe mate, you are a diamond.

[Flumsycat]

I watch other science channels and yours is the one that makes me understand the others and learn, you make it really easy, huge thanks

[Pidrittel]

Statistical mechanics are fascinating because they require almost no assumptions about the real world, but are able to describe many phenomenons

[tornadospin]

Your ability to break down complicated subjects so they are easy to understand is remarkable! Your teaching abilities are on par with Richard Feynman himself! Thank you so much and keep up the great work!

[WildGamez]

I saw the lecture by Sean Carroll on wondrium and that was mind-blowing, but this work of imagination is next level.

[DragonKingGaav]

A new In a Nutshell and a new ScienceClic in the same day is the equivalent of winning the lottery on Christmas!

[iamone_]

This is incredibly good explanation. Entropy was so strange concept to grasp.This style of education will speed up human evolution. We are so lucky to have this easy access to knowledge.

[aditya]

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[shreyan_]

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[booJay]

I'm less than a minute in and already I can tell this is the best video explaining entropy on Youtube...

[thevoid]

Already know this is gonna be a good one.

[ralphgrizzell]

Honestly this channel is sick. Prolly one the best science channels on YouTube. I seriously wouldn't have picked A level physics if it wasn't for this.

[knmksthx]

Channels like this are rare. He understands the material so well and can make great animation to convey it

[nicsmith]

Thank you for another amazing video. Every single video I watch is another now I get it" moment, even when I go in thinking I have a grasp of the concept!

[blablablaj]

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[MrShtrudL]

The most amazing channel by far, as an undergrad in Physics, I can clearly see that.

[Cubinator]

This might be the best (or at least most intuitive) explanation of entropy. Literally all other YouTube channels just say that entropy is a measure of disorder without explaining how to measure disorder. I mean, there is no disorder-o-meter. But here the "measure of disorder" was explained as the probability of a family of similar arrangements. Great video :)

[SumeetKumarHC]

The best explanation of the concept of Entropy on this platform. Thank you Science click English for making me thinking.

[SliversRebuilt]

I can just so clearly see you kicking back to enjoy a good Mindscape episode each week

[Schattenhall]

A minor critique regarding the balloon example (6:39):
Picking a balloon instead of a rigid container (eg an open bottle) makes the whole situation needlessly complicated and ambiguous.
The balloon itself will go from a stretched/inflated to a relaxed/deflated state (and thereby pushing out whatever is inside), no matter how the air molecules are initially distributed within the whole system.