Tag: information

• Maxwell's Demon: Can a Machine Run on Information?Can a demon sorting fast molecules beat the second law? Szilard's engine reduces the question to one molecule, and Landauer's principle settles it: erasing a bit costs kT ln 2 of heat.PhysicsPhysics ColumnsHigh school / generalthermodynamicsentropyinformationLandauer's principlethought experiments~25 min