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A reno64: Hitrekks::2008-01-19 3:07
Hello Renaud

Thank you for your kind visit and feedback.

Your comment on the horizon is noted with thanks.

For this river, measurements indicate that its velocity flow is about 4.5meters/second which translates roughly to 15km/hr.

For a mountain slope, or a water fall, there is always a gradient, and similarly for a river of fast flow, a hydralic gradient is a matter of fact.

Unlike the sea or huge lake, where water is not flowing on a gradient, the horizon is clear cut and is ALWAYS level.

You are right to say a horizon is level.

Whereas for a river, it is not a horizon, it is what we will call in terminology a 'profile', either longitudinally or transversely.

I was told by one photographer that he would find this fact out and let me know if there is any other facts to show a 'horizon' for a river, and so far, after 3 months, I am still waiting for him to give the feedback.

Your gallery has great photos and I like particularly 'Relax' your landscape shot. Hoping to share more photography with you.

Thank you for your feedback, Renaud, once again.

TFS, bill
Malaisie
Title: Like a Painted SkyNikon D80
Like a Painted Sky (148) *
trekks Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1995 W: 141 N: 3390] (13665)
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A reno64: Hi trekks Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1995 W: 141 N: 3390] (13665)::2008-01-19 03:07