tldr: Maxwell's Demon is a theoretical door that can make a enclosed system (insulated box, isolated room, etc) colder by letting colder molecules in, and blocking it when it tries to bounce out, and vice versa for hot molecules.

Nothing is this precise IRL.

Maybe magic

No idea what this can be used for. Bullshit tier heat engine?

Apologies for not posting anything last week. I have been busy. I was in the US last week, visiting Fermilab, which was really cool, but I then had a ton of work to catch up on when I got home.

And I had to watch my new Rainbow Rocks DVD.

My verdict: It's awesome. The post-credits ending makes it 200% cooler. I particularly loved the reference to Maxwell's equations.

Did you miss it? It's here:

Read More