Comment on This changes everything
nialv7@lemmy.world 1 week ago
You cannot invert a cup because it doesn’t have an inside and an outside. It’s just a disc.
Comment on This changes everything
nialv7@lemmy.world 1 week ago
You cannot invert a cup because it doesn’t have an inside and an outside. It’s just a disc.
nymnympseudonym@piefed.social 1 week ago
you can invert its curvature from positive to negative