A. Diesel Vents wrote:

On Tue, 06 Jul 2004 12:56:04 -0400, DSK wrote:


Nav wrote:


Hah! If the earth was not curved height would not be the primary
determinant of geographic range. You've still ignored the question of
color which has a very large effect.

You are free to explain at length, if you wish. Or, if you don't like it
here, you're free to go away. Your call.


You are all failing to take into account the effect of doppler shift
and how it affects color. As you sail towards a light source, the
wavelength will be shorter, and as you sail away, longer.

I'm sure this is a serious problem, worthy of an extended thread all
its own.

Especially as you tack out of the solar system with your light sail!

Cheers