Hofmaimaier@feddit.org to Science Memes@mander.xyzEnglish · 1 month agoHow about the digestive system?feddit.orgimagemessage-square169fedilinkarrow-up1653arrow-down131
arrow-up1622arrow-down1imageHow about the digestive system?feddit.orgHofmaimaier@feddit.org to Science Memes@mander.xyzEnglish · 1 month agomessage-square169fedilink
minus-squareSteve Dice@sh.itjust.workslinkfedilinkEnglisharrow-up3·1 month 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-up1·1 month agoVery good observation. Now what about a hollow sphere?
minus-squareSteve Dice@sh.itjust.workslinkfedilinkEnglisharrow-up2·1 month agoAll spheres are hollow (mathematically)
minus-squarehalvar@lemy.lollinkfedilinkEnglisharrow-up2·1 month agois x²+y²+z²<=r² not considered a sphere then?
minus-squareSteve Dice@sh.itjust.workslinkfedilinkEnglisharrow-up2·edit-214 days 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.