The view from Madison: base ten! lasers!

I've been mesmerized by my laptop screen for a long time, and was slightly irritated that a group of four men decided to set up at the table right next to mine (considering that the place is nearly empty). But I kept my concentration up, not even eavesdropping on these guys, until I heard the words "base ten." Now I'm entirely distracted by these men, all with French accents, talking about math. Ah, they are leaving! So soon? But I've been here for over two hours. I really do need to leave. It's a beautiful day here in Madison, where it's sunny and 67 degrees. And here's a cool thing about Madison:

[The dome of the new Overture Center] which stands four stories above the lobby at the corner of State Street and North Fairchild Street, was lighted about 9 p.m. for a 15 minute demonstration of the building's lighting system.

Three rings of computer-controlled light-emitting diode strips lining the rotunda glowed, faded and pulsed through nearly every shade of the rainbow up into the glass dome. ...

During the demonstration, the lights also went through a sequence in which strips of red, white and blue chased each other around the rings.

Check out the picture at the link.