A visit to a nearby observatory sparked my interest in Astrophotography – taking pictures of the heavens. This is a rewarding hobby even for suburbanites but requires some equipment and expertise.
DSLR Astrophotography
Magnetic Pendulum Calligraphy (v2)
The improved second generation magnetic pendulum calligrapher with electronic remote-control brush.
Magnetic Pendulum Calligraphy (v1)
My first implementation of a magnetic pendulum that can draw something.