Shadow marvels

I have a number of blog posts I want to make. About Jabber, about Edinburgh, about wikis, about Venus.

I’ve just read this story Shadow lamps to connect friends on the BBC and I absolutely love it.

How could we do something similar at home? Off the top of my head: maybe a webcam taking shots every x seconds and then using ImageMagick to do an inverted monochrome transform and post to the web (copy to public_html, FTP, whatever) and then use some desktop gadget system (Google Gadgets, Yahoo! Widgets, GNOME panel applet whatever) to pull it down and embed it?

Sounds good!

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