An amateur photographer friend and I went on a building roof with a good view on the Los Angeles International Airport (LAX) to make a time-lapse video of the planes landing at night. The frames are separated by 10 seconds:
I managed to convince my friend to do this project, because I was very curious about what the barely moving lights-in-the-sky would look like in a time-lapse video. He built the electronic shutter controller for his camera, while I provided encouragement and "logistical" access to the roof :-)