Phet.colorado.edu

Website: phet.colorado.edu

Free science and math simulations for teaching STEM topics, including physics, chemistry, biology, and math, from University of Colorado Boulder

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What to do if the site PHET.COLORADO.EDU is unavailable?

If PHET.COLORADO.EDU works, but you cannot access the site or its individual page, try one of the possible solutions:

Browser cache.
To delete the cache and get the current version of the page, refresh the page in the browser using the key combination Ctrl + F5.

Access to the site is blocked.
Clear your browser cookies and change the IP address of the computer.

Antivirus and firewall. Check that anti-virus programs (McAfee, Kaspersky Antivirus or an analogue) or a firewall installed on your computer do not block access to PHET.COLORADO.EDU.

DNS cache.
Clear the DNS cache on your computer and try to access the site again. How-To Video. Watch  

VPN and alternative DNS services.
VPN: for example, NordVPN;
Alternative DNS: OpenDNS or Google Public DNS.

Browser Plugins.
For example, the AdBlock extension, along with ads, can block the content of a site. Find and disable similar plugins for your site.

Microphone Software Driver is buggy
Quickly check your mic: Microphone Test.

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Possibly, redirect from different versions is configured incorrectly on phet.colorado.edu. In this case, use the links below:

http://phet.colorado.edu    https://phet.colorado.edu    http://www.phet.colorado.edu    https://www.phet.colorado.edu


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Guest      43 days ago  # 13 Jan 2021
General Outage

Guest      43 days ago  # 13 Jan 2021
Website

Guest      44 days ago  # 13 Jan 2021
Log-in

Guest      44 days ago  # 13 Jan 2021
App

thomas      45 days ago  # 12 Jan 2021
problem solved here

leslie meehan      45 days ago  #
The site is down.

Guest      45 days ago  #
No server response