Don_Dickle@lemmy.world to Today I Learned@lemmy.worldEnglish · 3 months agoTIL that those oxygen masks that come down inside airplanes are connected to individual “chemical oxygen generators” rather than a supply of oxygen gasen.wikipedia.orgexternal-linkmessage-square8fedilinkarrow-up1239
arrow-up1239external-linkTIL that those oxygen masks that come down inside airplanes are connected to individual “chemical oxygen generators” rather than a supply of oxygen gasen.wikipedia.orgDon_Dickle@lemmy.world to Today I Learned@lemmy.worldEnglish · 3 months agomessage-square8fedilink
minus-squareSzethFriendOfNimi@lemmy.worldlinkfedilinkEnglisharrow-up27·3 months agoCheaper and more reliable with a known expiration date that can be easily maintained.
Cheaper and more reliable with a known expiration date that can be easily maintained.