light, color, and lasers

bliss (swise@noontide.lwhs.org)
Tue, 25 May 1999 14:30:54 -0800

Messages sorted by: [ date ][ thread ][ subject ][ author ]
Next message: Steve Hammack: "Job at Los Gatos High School"
Previous message: Deborah Hunt: "Teacher resources"

Message-Id: <199905252123.OAA15308@noontide.lick.pvt.k12.ca.us>

Date: Tue, 25 May 1999 14:30:54 -0800

To: pinhole@exploratorium.edu

From: swise@noontide.lwhs.org (bliss)

Subject: light, color, and lasers

Quite possibly the last pinhole question from my ultra-bright crop of
students, graduating this year:

Do laser colors add in the same way that dispersed colors of light through
a prism can be added to make white light?

Why do light colors add in the ways that they do, anyway (i.e. green and
red making yellow)? Is the phenomenon due to interference, or aspects of
human perception, or something else?

Sarah Wise

帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘帘

Sarah Wise

Lick-Wilmerding H.S.
755 Ocean Avenue
San Francisco, CA 94112
swise@lick.pvt.k12.ca.us

"Not everything that can be counted counts,
and not everything that counts can be counted."
--Albert Einstein

Next message: Steve Hammack: "Job at Los Gatos High School"
Previous message: Deborah Hunt: "Teacher resources"