Re: pinhole Diffuse reflections and steering wheels

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From: Paul Doherty (pauld@exploratorium.edu)
Date: Thu May 03 2001 - 14:54:38 PDT

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Message-Id: <l03110728b71782344e5a@[192.174.2.173]>
Date: Thu, 3 May 2001 14:54:38 -0700
From: Paul Doherty <pauld@exploratorium.edu>
Subject: Re: pinhole Diffuse reflections and steering wheels

Jhumki

If the water is flat, it acts like a mirror, you see an image of the moon.

If the water has smooth waves on it, the flat yet angled faces of the waves
reflect specular images of the moon from different places on the water this
makes a column of light balls reflected from the water. (I would not call
this diffuse reflection myself)

It is a column because small angles of the water surface can make the moon
reflection spread out straight away from you, but larger angles are needed
to make it go to the side.

Paul D

Paul "But it is more complicated than that!" Doherty,
Senior Staff Scientist, The Exploratorium.
pauld@exploratorium.edu, www.exo.net/~pauld

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