Kurtagag@lemmy.ca to Asklemmy@lemmy.mlEnglish · 7 days agoWhat was a fact taught to you in school that has been proven false during your lifetime?message-squaremessage-square222fedilinkarrow-up1168arrow-down11
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 · 7 days agomessage-square222fedilink
minus-squareKacarott@aussie.zonelinkfedilinkarrow-up34arrow-down1·7 days agoThat blood is actually blue until it gets in contact with air
minus-squareAppoxo@lemmy.dbzer0.comlinkfedilinkarrow-up9·7 days agoEasy to proof: Vaccumated capsule to draw blood. No contact with air and still red.
minus-squareMasterFlamingo@lemm.eelinkfedilinkEnglisharrow-up4·edit-25 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.