Spiral cloud near Moscow last morning

Comments

pebbleinthepond · 10 years ago · FIRST

That's not a spiral it's a double helix

mcr101 · 10 years ago

It's a DNA strand

pebbleinthepond · 10 years ago

That's what a double helix is.

1 · Edited 10 years ago

grammarnazi1 · 10 years ago

It's a twirly pasta noodle.

7 Reply

guest · 8 years ago

Pebble: a DNA strand is a double helix. A double helix is not necessarily a DNA strand.

▼ Reply