Two links which may be of interest
http://www.todayifoundout.com/index.php/2010/01/how-to-make-a-ridiculously-cheap-analog-pressure-sensor/
Its an old link but its currently being tried in a ROV at
seaperchaustralia.org
with a report to come soon.
The sea perch link also shows how to get youngsters interested in ROVs
(from little acorns, mighty oaks grow)
Yesterday at 9:44 pm by geofrancis
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