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" Harris martin: velocimeter?" At first it was a startling concept -- but then I thought "Why not? We must at least try." First we put a propeller-beanie on Harris' head. Then we force him to ingest large anounts of a hops/malt/barley concoction laced with more large amounts of flourescent dye. Next, we place Harris in the current -- beanie propeller rotation perpendicular to the flow, of course. (He can be fixed solidlly in place on the cave floor by setting large chucks of goethite on him. They're all over the cave walls and ceiling, easily broken off as we need them, and will grow back in a million years anyway.) Once he is fixed, we open the p-valve on his suit and move away. Then, when the silt has cleared, we can start recording info. The rate of rotation on the beanie's propeller is calculated against the time it takes for the trace formula to egress the velocimeter, divided by the expiration rate of the unit's power source, and volume of gas migration from the trace formula together with the concomitant expansion of Harris' suit. Elegent, non-polluting, inexpensive, disposable, easily replaceable. "Harris Martin: velocimeter?" I vote "yes!" "Denta-Snork? Certainly -- reduces 'scrubber-breath'. 'Nuff said." Rod Farb Christopher A. Brown The Technical Diving Video Library (TDVL) http://www.neuro.fsu.edu/dave/docent.htm (N.Am. & Canada): 1-800-373-7222 Outside US:904-942-7222 Fax:904-942-1240 Life is short -- this is not a rehearsal.
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