Brian Cox explains Entropy

disregard the main title, it's really about entropy
ChaosEnginesays...

some *quality cox there. Love me some thermodynamics. Gives me an opportunity to bust out one of my favourite science quotes:

"The law that entropy always increases holds, I think, the supreme position among the laws of Nature. If someone points out to you that your pet theory of the universe is in disagreement with Maxwell's equations — then so much the worse for Maxwell's equations. If it is found to be contradicted by observation — well, these experimentalists do bungle things sometimes. But if your theory is found to be against the second law of thermodynamics I can give you no hope; there is nothing for it but to collapse in deepest humiliation."
Sir Arthur Stanley Eddington

Entropy is, somewhat perversely, information.
*related=https://videosift.com/video/What-is-NOT-Random

Sagemindsays...

Well, the wind could NOT EVER blow the wind into the shape of a sand Castle, because both the Humidity and Gravity are working against it. Even if there was rain or moisture that perfectly conditioned the sand to stick to itelf in the perfect consistency, then the wind couldn't quite blow it around in the way it would need to. And of course Gravity would always cause the sand to fall to it's lowest points.

I know I'm being picky here, but this just stood out to me.
Everything else in the video was engaging.

vilsays...

Naah its just really unlikely (and difficult to define), of course you would need an infinitely variable wind source, stochastic sand generator and random humidifier/dryer to get a good result.

Wind on a beach is not nearly random enough.

Sagemindsaid:

Well, the wind could NOT EVER...

Paybacksays...

Analogies should never be taken literally. They're never exact, otherwise they'd be proof.

Sagemindsaid:

Well, the wind could NOT EVER blow the wind into the shape of a sand Castle, because both the Humidity and Gravity are working against it. Even if there was rain or moisture that perfectly conditioned the sand to stick to itelf in the perfect consistency, then the wind couldn't quite blow it around in the way it would need to. And of course Gravity would always cause the sand to fall to it's lowest points.

I know I'm being picky here, but this just stood out to me.
Everything else in the video was engaging.

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