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Physics Education Technology - University of Colorado, Boulder

Scheduled Downtime: Friday, April 19, 2013 at 5:30 PM Mountain Daylight Time

We will be upgrading the PhET server on Friday, April 19 at 5:30 PM Mountain Daylight Time. During this time, PhET ( will experience periods of unavailability. We expect that the outage will last only 30 minutes and that we will be back online very quickly. However, if you experience issues, please e-mail the PhET Help Desk at

Thanks for your patience during our system upgrade.

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