Hofmaimaier@feddit.orgcake to Science Memes@mander.xyzEnglish · 26 days agoHow about the digestive system?feddit.orgimagemessage-square169linkfedilinkarrow-up1660arrow-down131
arrow-up1629arrow-down1imageHow about the digestive system?feddit.orgHofmaimaier@feddit.orgcake to Science Memes@mander.xyzEnglish · 26 days agomessage-square169linkfedilink
minus-squareSteve Dice@sh.itjust.workslinkfedilinkEnglisharrow-up3·25 days agoBut saying that to make a hole in a sphere, you need to make two holes in the sphere is funny.
minus-squarehalvar@lemy.lollinkfedilinkEnglisharrow-up1·25 days agoVery good observation. Now what about a hollow sphere?
minus-squareSteve Dice@sh.itjust.workslinkfedilinkEnglisharrow-up2·25 days agoAll spheres are hollow (mathematically)
minus-squarehalvar@lemy.lollinkfedilinkEnglisharrow-up2·24 days agois x²+y²+z²<=r² not considered a sphere then?
minus-squareSteve Dice@sh.itjust.workslinkfedilinkEnglisharrow-up2·1 day agoNope. That’s a ball. A closed ball to be precise. “Sphere” refers specifically to the “=” part.
But saying that to make a hole in a sphere, you need to make two holes in the sphere is funny.
Very good observation. Now what about a hollow sphere?
All spheres are hollow (mathematically)
is x²+y²+z²<=r² not considered a sphere then?
Nope. That’s a ball. A closed ball to be precise. “Sphere” refers specifically to the “=” part.