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-square5fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1external-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-square5fedilink
minus-squareSzethFriendOfNimi@lemmy.worldlinkfedilinkEnglisharrow-up0·3 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.