Granular is granite.
 (See for example the second law of thermodynamics)== Molecular dynamics ==In molecular dynamics, coarse graining consists of replacing an atomisticdescription of a biological molecule with a lower-resolution coarse-grained model that averages or smooths away fine details
 An example of increasingly fine granularity: a list of nations in the United Nations, a list of all states/provinces in those nations, a list of all cities in those states, etc

