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ACTIVITIES:
Light Talk
Forum: Shedding Light
Topic: Colored light
Topic Posted by: Fran Ludwig (ludwig@sch.ci.lexington.ma.us )Organization: Lexington (MA) Public Schools
Date Posted: Wed Dec 1 17:36:52 US/Eastern 1999
Topic Description: Our group is having a lively debate about whether you can see a red object if you view it with violet light. We used color paddles to shine violet light from a flashlight at a red box. We could see a bright spot from the flashlight that looked a little red. Some of us thought that we would be able to see red in violet light (since red and blue = violet) but others thought that violet light and red light are completely different photons, so the box should look black. Our results were not very conclusive (the color paddles are not perfect as filters and the room was not completely dark. What do others think? Does anyone know where to buy good color filters at a reasonable price?
Previous message
Posted by: Clive Grainger (cgrainger@cfa.harvard.edu )
Organization:Harvard-Smithsonian CfA
Date posted: Thu Dec 2 21:48:16 US/Eastern 1999
Subject: Suppliers of Colored Lighting Filters
Message:
Fran: To purchase colored lighting gels try Barbizon Lighting: 3 Draper Street, Woburn, MA 01801. Phone: 800-935-3920. They also have a number of offices in other parts of the country (website: http://www.barbizon.com/location.html) or in Yellow Pages look under theatrical lighting suppliers. Good Luck!! Clive Grainger - Producer/Videographer: "Shedding Light on Science"
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