Technically speaking, there's nothing particularly magical about this kind of picture. These are just the lights on the riverboats of the San Antonio Riverwalk as they pass under a bridge, taken over an extended exposure. But I'm always fascinated by how the camera translates that passing boat into merely streaks of light -- as if the boat and its passengers had never even been there, but only the bright lights that marked their presence to the rest of us. That quickly starts to get a bit too esoteric for my taste -- so suffice it to say that the light streaks are just cool to see. Medium: Digital