v1.4 [Jul 5, 2011] A variety of visual modes:including isolating partial circuits to show use,hiding intermediate gates,and not showing different colors for true/false (useful for preparing circuits for use in documents).
Creates and organizes family history databases
Creates layouts for printed circuit boards
Designs and updates printed circuit board projects
Creates and edits biological sequence models
PhET is a collection of physics simulations from University of Colorado
