Buildings cast shadows. By mounting an correctly distorted human form on the roof at the right angle at the right time one should be able to create the impression of a human shadow on the ground as if someone was standing near the building. This contraption could be once of many shadow puppets used to create some serious sidewalk theatre. There could be gunfights and murder! love and romance all beneath your feet.
Likewise it might be possible to modify a street lap to include the shadow of a guy playing the sax (ambient echoing music optional)-- futurebird, Apr 05 2004 Ambient echoing music mandatory. [+]-- yabba do yabba dabba, Apr 05 2004 Well futurebird you are very creative today! I think this is your best one yet.-- dentworth, Apr 05 2004 Lovely idea. It would be spoilt by the penumbra effect, though: the further away from the ground, the more blurred the shadow edges are. The shadow of something on top of a building would be blurred beyond credibility.
But there's no reason why you couldn't do it from below or from the inside of a "wall", casting reflections on frosted glass.
[P.S. I hope you hold your students to higher spelling standards than yourself.]-- DrCurry, Apr 05 2004 That's why I could never teach english. I have trouble even seeing other people's errors.-- futurebird, Apr 05 2004 I'm sure this would be the highlight of so many of those people caged in an office all day. I'd like to see a scene of Hitchcock's birds attacking people and getting into the office through the windows. Now THAT would be amusing!-- Pericles, Apr 05 2004 random, halfbakery