Re: [Phys-l] absorption spectra

["Krishna Chowdary" <chowdark@evergreen.edu>]

Anthony

Have them look at the sky in daylight.  But not directly at the sun!
(You knew that bit).

-Krishna

On Wed, Oct 29, 2008 at 9:26 AM, Anthony Lapinski
<Anthony_Lapinski@pds.org> wrote:
> In my high school astronomy class, I will be discussing light and spectra
> soon. I wish to do a lab/activity where students can analyze various light
> sources with a diffraction grating. It is easy to show continuous spectra
> with a candle or light bulb, and emission spectra with gas tubes. I am
> looking for a way to show an absorption spectrum. In the past I had
> students use colored filters to cover an incandescent light bulb. This
> sort of mimics the atmosphere of a star.
>
> Does anyone have other ways to show absorption spectra using simple
> materials?
>
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