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  • UFFXQNMK3JA9NX7B4BM7BY commented on Mr. Rig It's instructable Spirit T-shirt Cannon6 months ago
    Spirit T-shirt Cannon

    Just to note so misinformation is not propagated, air and liquid are VERY different in terms of failure mode. As liquid is incompressible, failure of a liquid-filled pressure vessel is very different and relatively benign compared to the failure of an air-filled pressure vessel. Air is compressible and therefore the failure of an air-filled pressure vessel looks a lot like an explosion. I have not studied the properties of PVC but would encourage anyone trying to build a pressure vessel from this material to consider safety first and not to disrespect air as a source of energy.

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