Kurtagag@lemmy.ca to Asklemmy@lemmy.mlEnglish · 1 month agoWhat was a fact taught to you in school that has been proven false during your lifetime?message-squaremessage-square221fedilinkarrow-up1163arrow-down12
arrow-up1161arrow-down1message-squareWhat was a fact taught to you in school that has been proven false during your lifetime?Kurtagag@lemmy.ca to Asklemmy@lemmy.mlEnglish · 1 month agomessage-square221fedilink
minus-squareKacarott@aussie.zonelinkfedilinkarrow-up34arrow-down1·1 month agoThat blood is actually blue until it gets in contact with air
minus-squareAppoxo@lemmy.dbzer0.comlinkfedilinkarrow-up9·1 month agoEasy to proof: Vaccumated capsule to draw blood. No contact with air and still red.
minus-squareMasterFlamingo@lemm.eelinkfedilinkEnglisharrow-up4·edit-21 month agoI remember my science teacher in seventh grade saying this and just being very confused because my mother who was a nurse said it was just a dark red.
That blood is actually blue until it gets in contact with air
Easy to proof: Vaccumated capsule to draw blood.
No contact with air and still red.
I remember my science teacher in seventh grade saying this and just being very confused because my mother who was a nurse said it was just a dark red.