jet heights

A Sloshing Mystery
Water in the open basins that commonly surround fountain jets or nozzles is never tranquil while these systems are in operation.  It will slosh around in response to the upward thrust of those jets or nozzles as well as the splashing the rising water makes as it drops back into the basin.  If the circumstances are right, this disruptive splashing will produce waves in a distinct, consistent pattern.  By exploiting these waves, it's possible to produce an effect I find