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Re: [Phys-l] absorption spectra

The version I saw, now not possible, was absorption by the vapour of an open beaker of Hg. I think the source was a low p. Hg lamp and the view was shadow from reflected by a white card -- this is, like JD's, the terrestrial version of D. MacI.'s*

* The superior demo., because it includes astronomy, the point of the exercise.

bc's memory from a half cent. is not that good.

On 2008, Oct 29, , at 10:25, John Denker wrote:

On 10/29/2008 09:26 AM, Anthony Lapinski wrote:

Does anyone have other ways to show absorption spectra using simple

Here's a simple low-tech setup

It goes on to list about a dozen references, mostly to TPT.

I like this version better, using a recently-turned-off
sodium lamp to provide a sample of sodium vapor: keyword=k16940&panel=icb.pagecontent269371%3Ar%241%3Fname% 3Dindepth.html%2Cicb.pagecontent269362%3Ar%241%3Fname% 3Dcomplete.html&pageid=icb.page102827&pageContentId=icb.pagecontent269 366&

These and lots more like them are easy to find by
Forum for Physics Educators