How can we help you?

First, navigate to your desired department from the homepage. Then, select a lab, and finally, choose a practical from the list. On the practical page, click the "Simulator" tab to begin your experiment.

Please try the following steps:
1. Ensure you have a stable internet connection.
2. Refresh the page (Ctrl + R or Cmd + R).
3. Clear your browser's cache and cookies.
4. Try using a different web browser like Google Chrome or Mozilla Firefox.
If the issue persists, please contact our support team.

Currently, the simulators do not support saving progress directly. We recommend taking screenshots of your results or recording the data in a separate document for your records.