Electromagnetic Radiation
This page is for listing all the queries regarding Electromagnetic Radiation, that are posted in the yahoogroup http://groups.yahoo.com/groups/Astronomy_Activities_2009/ and linking to the relevant discussions.
At the moment there is just one topic of discussion under this section, and the topic started with a question raised by students who had attended a workshop at the Planetarium. The question related to the absorption of most of the bands of electromagnetic radiation, by the atmosphere other than windows like the optical and radio ones.
The discussions are archived here.