Plum@lemmy.worldM to Wikipedia@lemmy.worldEnglish · 3 months agoBog butteren.wikipedia.orgexternal-linkmessage-square15fedilinkarrow-up181arrow-down11
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minus-squareCort@lemmy.worldlinkfedilinkEnglisharrow-up3·3 months agoMaybe a refillable liquid nitrogen container so it forces all the oxygen out every time you open it.
minus-squarejet@hackertalks.comlinkfedilinkEnglisharrow-up11arrow-down1·3 months agoNitrogen is denser then air, so you can have a float indicator at the rim of the unit, if the nitrogen dips to low you pump in more until the float… floats. All mechanical, no electronics needed!
Maybe a refillable liquid nitrogen container so it forces all the oxygen out every time you open it.
Nitrogen is denser then air, so you can have a float indicator at the rim of the unit, if the nitrogen dips to low you pump in more until the float… floats. All mechanical, no electronics needed!