Spirals that go inward with $t$ime; can be found in physical systems, like whirlpools, tornadoes, spiral galaxies
Spiral that go outward; can be found in living systems, like snail shells, fern fronds, dna-(double) helix,

Are there exceptions to this?

Question

Spirals that go inward with $t$ime; can be found in physical systems, like whirlpools, tornadoes, spiral galaxies
Spiral that go outward; can be found in living systems, like snail shells, fern fronds, dna-(double) helix,

Are there exceptions to this?

turingtest · Answer

how about a spinning double-ended hose?|dw:1345012268035:dw|this would be a non-biological system that radiates a spiral outward
I hope that is what you meant...