DeltaWingDragon@sh.itjust.works to Today I Learned@lemmy.worldEnglish · 9 months agoTIL about this device for resuscitating canaries in coal minesmuseumcrush.orgexternal-linkmessage-square2linkfedilinkarrow-up10arrow-down10
arrow-up10arrow-down1external-linkTIL about this device for resuscitating canaries in coal minesmuseumcrush.orgDeltaWingDragon@sh.itjust.works to Today I Learned@lemmy.worldEnglish · 9 months agomessage-square2linkfedilink
minus-squarePyroNeurosis@lemmy.blahaj.zonelinkfedilinkEnglisharrow-up0·9 months agoWhat strikes me is the use of canaries into the 1950’s. Surely we could have had some other means of detecting toxic gasses besides small animals.
What strikes me is the use of canaries into the 1950’s. Surely we could have had some other means of detecting toxic gasses besides small animals.
Are birds animals?