Kurtagag@lemmy.ca to Asklemmy@lemmy.mlEnglish · 11 days agoWhat was a fact taught to you in school that has been proven false during your lifetime?message-squaremessage-square215linkfedilinkarrow-up1167arrow-down10
arrow-up1167arrow-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 · 11 days agomessage-square215linkfedilink
minus-squareKacarottlinkfedilinkarrow-up33arrow-down1·11 days agoThat blood is actually blue until it gets in contact with air
minus-squareAppoxo@lemmy.dbzer0.comlinkfedilinkarrow-up8·10 days agoEasy to proof: Vaccumated capsule to draw blood. No contact with air and still red.
minus-squareMasterFlamingo@lemm.eelinkfedilinkEnglisharrow-up4·edit-29 days agoI remember my science teacher in seventh grade saying this. I was just 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. I was just very confused because my mother who was a nurse said it was just a dark red.