Reversing Entropy with Maxwell’s Demon

Ultimately, entropy is a measure of the availability of free energy – of energy that isn’t hopelessly mixed in thermal equilibrium. Pump energy into a small system and complexity can thrive..



Funky Statistical Mechanics Concepts

The purpose of the “Funky” series of documents is to help develop an accurate physical, conceptual, geometric, and pictorial understanding of important physics topics… The Funky series attempts to clarify those neglected concepts, and others that seem likely to be challenging and unexpected (funky?). The Funky documents are intended for serious students of physics; they are not “popularizations” or oversimplifications.



Death and Heat Death with Cory Doctorow

Entropy. It’s this super-popular idea (which is good) which is often misunderstood (which is bad). It’s the reason an icecube melts in a glass of warm water. It’s the reason you can’t get an engine which is 100% efficient.

Death and Heat Death with Cory Doctorow


Entropy

Have you ever been doing thermodynamics in a closed system and noticed that there’s a finite number of ways that things can be arranged, and they tend towards disorder? Of course you have, we all have. That’s entropy. And here in our Universe, entropy is on the rise.

Entropy



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