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Marc, I checked into this ear clearing problem long ago. Those who have performed various tests in medical labs and hyperbaric facilities assure me that every animal they have compressed has no problem clearing during descent. One experimenter informed me that he wasted his youth trying to bend small mammals to no avail. Before finding this out I was going to feed them just before submersion so they would be chewing during descent. These small creatures commonly live in closed spaces or pockets where they are subjected to constant small pressure changes resultig from the slightest wind or air currents that move across the openings. They should be well addapted to these changes since hearing is vital to survival in their little world. I have already gone around and around with the animal rights people who pelted me with threats and partitions for mercy. This project is not an experiment on the mice - I know what will happen with them and they will be fine. This is actually a refinement of the same project I did for my senior year science project many years ago. It will serve as a demonstration of technique and problem solving for educational purposes and any actual experiments will be periferal to the housing and not involve any apperciable risk to my tiny subjects (corrosion, material compatability, pioneer life form growth, . . . ). There will be more risk to the tending divers that to the mice. Chuck -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send list subscription requests to `techdiver-request@aquanaut.com'.
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