This was part of the "Energy" section at the musuem. There were two different versions, one straight and this one that curved. I'm not sure what they were intended to show, since no sign was nearby, but they looked cool. This shot was taken from 10 feet, so you can imagine how large (picture not cropped)they were. It almost looked like something you were supposed to walk through, but they were behind a plexiglass panel. Thanks to everyone for your votes and comments.
Oh, this is terrific. Don't know what it is (and don't really care) but I like it a lot. There's just a little distraction on the right side curve, but in a way it adds interest.