It is a larger and more impressive display:
They have a variety of Tesla coils and Van de Graaff generators. I saw a show there last year at a conference that had rented out the museum for the night for a private party.
We all want progress, but if you're on the wrong road, progress means doing an about-turn and walking back to the right road; in that case, the man who turns back soonest is the most progressive.
-C. S. Lewis