Posted by Anonymous on Wednesday, September 19, 2007 at 10:38pm.
Do they have to pass visible light? Do they have to be transparent? Almost anything that visible light can't pass through will also block uv light. There are a few exceptions, like black light filters (cobalt and nickel sulfate)
he just said stuff like sunglasses, sunblock, but I wanted to try and get something better than that.
Thank you
It is easy to come up with a list of mterials to test, but you will need a device called a UV-visible spectrophotometer to measure the blocking effectiveness as a function of wavelength. These typically cost thousands of dollars. Will your school be providing such a device?
Thank you for your help we did our experiment earlier today, it was not a big deal, just wanted something that nobody else had.
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