This page contains two Physlets, Faraday and DataGraph. The Faraday Physlet is a SDataSource. It supplies the following variables to a SDataListener.
The DataGraph is a SDataListener. A DataGraph can display data supplied by a data source using a data connection. A data connection can be established between a data source and a listener using the following script:
document.Faraday.makeDataConnection(sourceID,listenerID,1,"t","f");