Does anyone know what the solid rubber cylinder that is used to practice scuba diving is called
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πŸ“°︎ r/scubaGear
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πŸ‘€︎ u/BlackMan64
πŸ“…︎ Aug 01 2020
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Why not replace the compressed O2 in a diving cylinder with Liquid oxygen/liquid air, thus allowing the diver to stay underwater much longer?
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πŸ‘€︎ u/silverlightBeing
πŸ“…︎ Apr 19 2019
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When you had weekend plans to go scuba diving, only to be told that you'd have to wait because the entire supply of oxygen cylinders was being held at a poop coffee farm in Toledo for unknown reasons.
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πŸ‘€︎ u/Katleesi717
πŸ“…︎ Jun 06 2018
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Sari-clad Seaweed Collectors of Rameshwaram. For around 300 women from Rameshwaram’s Chinnapalam (or Little Bride) village free diving is no sports β€” it is a battle of survival. Unlike the conventional divers, these women cannot afford a diving suit, a mask or an oxygen cylinder. youtube.com/watch?v=LZNvV…
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πŸ“°︎ r/indianews
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πŸ“…︎ May 27 2018
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Diving bell in the shape of a cylinder lowered into sea water.

A diving bell in the shape of a cylinder with a height of 2.50 m is closed at the upper end and open at the lower end. The bell is lowered from air into sea water of density = 1.025 g/cm^3. The air in the bell is initially at 20.0C. The bell is lowered to a depth (measured at the bottom of the bell) or 82.3 m. At this depth the water temperature is 4.0C, and the bell is in thermal equilibrium with the water.

A) How high does sea water rise in the bell?

B) To what minimum pressure must the air in the bell be raised to expel the ware that entered?

So far, I've calculated the pressure at the bottom of the bell to be Pf = ρgh + Pi, with Pi being the atmospheric pressure, at 101.3 kPa.

Not quite sure where to go from here. I assume I need to use pV=nRT somewhere, but not quite sure what to do with it. PiVi/Ti=PfVf/Tf?

Thanks!

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πŸ“°︎ r/AskPhysics
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πŸ‘€︎ u/Broswagonist
πŸ“…︎ Oct 01 2015
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