The University of Colorado Office of Information Technology will be performing a scheduled system reboot of the PhET server on Sunday, March 25 at 11:00 PM Mountain Daylight Time. During this time, PhET (http://phet.colorado.edu) will experience periods of unavailability. We expect that the outage will last only 10 minutes and that we will be back online very quickly. However, if you experience issues, please e-mail the PhET Help Desk at email@example.com.
Thanks for your patience during our system maintenance.