These are some time-lapse videos I made from a great tutorial outlining how to use a TI programmable calculator as an intervalometer. I was really pleased with the design and the results. Update 3/30/2010: I built my own intervalometer using an arduino, so I don't use the calculator anymore. Basically, a picture is taken at regular intervals for a long time. Those pictures then become the frames of a video that essentially speeds up time. The video timescales vary from 10 minutes to 2 weeks.
Once you have all your images, it can be a pain to create a nice looking video from all those pictures. I wrote a how-to for creating timelapse videos using three pieces of software: Movie Maker, QuickTime, and (my favorite) mencoder.
All copyright 2009 Trevor Shannon.
Click on a thumbnail for the video.