The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
Over the summer PhET will be hard at work upgrading our simulations for the new school year! Help support our summer vacation work and give the gift of learning by donating today!
c/o Oliver Nix
University of Colorado 390 UCB
Boulder, CO 80309-0390
We have licensing information for the interactive simulations and their source code.