capillary

The invention of SPG's in the 1960's made scuba safer and more fun. Alec shows the evolution of this simple, but very important instrument, and why it may soon disappear. *** In this episode of Vintage Scuba *** 1961 Sportsways…
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Dive computers are accurate to within one or two feet, however capillary gauges measure depth as "close enough". Alec shows the evolution of capillary depth gauges using Boyle's Law of pressure and volume. *** In this episode of Vintage…
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