fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 1 month agoNihilism spectrummander.xyzimagemessage-square19fedilinkarrow-up1558arrow-down113
arrow-up1545arrow-down1imageNihilism spectrummander.xyzfossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 1 month agomessage-square19fedilink
minus-squareitslilith@lemmy.blahaj.zonelinkfedilinkEnglisharrow-up3·edit-21 month agoNot true, topolgically the route left nostril -> sinus -> right nostril is another hole. So is any nostril -> sinus -> mouth. ears have the eardrum, so they don’t count. For the more formal definitions of topological holes, look up Betti numbers, I think there’s a VSauce video about it? For humans, the number of holes is at least 3 (but I’m sure I’m missing many more holes). Unless you’re missing the entire septum.
Not true, topolgically the route
left nostril -> sinus -> right nostril
is another hole. So is
any nostril -> sinus -> mouth.
ears have the eardrum, so they don’t count.
For the more formal definitions of topological holes, look up Betti numbers, I think there’s a VSauce video about it? For humans, the number of holes is at least 3 (but I’m sure I’m missing many more holes). Unless you’re missing the entire septum.