Paul Falstad's Graphical Display of Fields: Electric Fields
This is the application we played with in class to develop our understanding of fields. Go forth and play (and learn)!
Demigod Rhett Allain: The Connection between Gravitational Fields and E Fields
Rhett explores in his own words many of the concepts, and the mathematics, that we discussed and toyed with in class last week regarding the E field. If you need to revisit these ideas this is a good way to do it.
TED Talk: Action at a Distance (Theremin)
Pamela Kurstin helps us remember why action at a distance is so magical and mysterious. That's an instrument (called a theremin) that she is playing without touching it.
Demigod Walter Lewin on Electric Fields
Save this for last of course and don't spend a lot of time here unless you really have it.