art g: Slow shutter and flash set for 2nd-curtain-synch gives the knife trail. Camera was on a tripod, and fitted with a shutter release cable. Halogen lamp positioned high left. Painted ballon was in front of black felt with a . Dropped knife with left hand, fired camera with right. Timing was everything! Took several tries (and several balloons) to get it right. Red glow behind balloon is PS
Jerry