Stamets@lemmy.dbzer0.com to People Twitter@sh.itjust.works · 2 个月前Blood is blue until exposed to oxygenlemmy.dbzer0.comimagemessage-square173linkfedilinkarrow-up11.29Karrow-down10
arrow-up11.29Karrow-down1imageBlood is blue until exposed to oxygenlemmy.dbzer0.comStamets@lemmy.dbzer0.com to People Twitter@sh.itjust.works · 2 个月前message-square173linkfedilink
minus-squareWFloyd@lemmy.worldlinkfedilinkEnglisharrow-up3·2 个月前My first thought was how ears and noses look red when sunlight shines through them. If blood was blue, wouldn’t they be blue or purple?
My first thought was how ears and noses look red when sunlight shines through them. If blood was blue, wouldn’t they be blue or purple?