WMATA recently installed flipbook-style advertising — a series of stills in slitted lightboxes which produce a motion effect due to your own persistence of vision as the train speeds by. The ads are installed in tunnels between Metro Center, Gallery Place/Chinatown, and Judiciary Square on the Red Line to Glenmont. (More on that from WaPo, NBC4, and DCist.) Here’s my very messy and compression-artifact-laden attempt to catch the ads with my mobile phone’s video recorder:

Update: Much better video of the ads from Life Outtacontext, who likens the tunnel flipbook format to a “21st Century Zoetrope.”