Re: Colored Shadows

From: On-line Snack discussion (snaktalk)
Date: Wed Oct 09 2002 - 18:34:12 PDT

The Snack called Colored Shadows does not use a
white light, but rather shines colored lights on a white surface. Perhaps
if you re-read the what's going on? section you will get more insight into
what's happening and why, and be able to form hypotheses to answer your

Nina Thayer
Snacktalk Moderator

> Overlap white light and red light and cast a shadow of an object. One
> of the shadows
> appears green. How is this occurring?
> Also, as the three colored lights are added, aren't you adding
> brightness so that
> white light appears from this luminance increase alone?
> Thanks,
> Paul K.

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