The Rainbow Navy ...

Calm down URR - not THAT rainbow Navy (not that there is anything wrong with that).

No, let's play around some more with the USS EMORY S. LAND's (AS-39) dry docking. The pic to the right brings up all sorts of questions and talking points.

I'll get the discussion starting with the low hanging fruit; the bright green line is algae. That leaves six to seven other distinct color bands to yabber about.

Over to you!