Alaska Cruise

Randy Muller (rmuller@No-Spam)
Sat, 15 Jul 1999 14:12:34 -0700

Robert MacKay wrote:
> ...I have seen them move as if someone was playing music...

So, the fast ones change in seconds? How much do they change? What
changes? Color? Shape? Extent? Brightness?

Can you describe what it looks like when they change quickly?


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