Plum@lemmy.worldM to Wikipedia@lemmy.worldEnglish · 5 months agoBog butteren.wikipedia.orgexternal-linkmessage-square15linkfedilinkarrow-up181arrow-down11
arrow-up180arrow-down1external-linkBog butteren.wikipedia.orgPlum@lemmy.worldM to Wikipedia@lemmy.worldEnglish · 5 months agomessage-square15linkfedilink
minus-squareCort@lemmy.worldlinkfedilinkEnglisharrow-up3·5 months agoMaybe a refillable liquid nitrogen container so it forces all the oxygen out every time you open it.
minus-squarejet@hackertalks.comlinkfedilinkEnglisharrow-up11arrow-down1·5 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!