Blog Posts

[Little Demos] 04 – What Curve Do Shadows Trace (On a Spherical Earth)?

This was a cancelled "Work-At-Home" experiment for physics undergraduates, due to local weather conditions, and a second thought that this project is better suited for high school students. Conic Sections You may skip to the next section if you are comfortable with analytic geometry or related mathematical fields. If you use a plane to cut … Continue reading [Little Demos] 04 – What Curve Do Shadows Trace (On a Spherical Earth)?

[Lux] Advanced Rainbow Manipulation

Backyard fun, sort of. This set of pictures were created using LED-enabled pois1 by myself and A. Cordwell, a friend of mine and 4th year student at Auckland astrophysics. This part-dancing and part-running-around project is my third attempt at light-pen practical effects. The equation that we wrote this time is ... Non-relativistic time-dependent Schrödinger. Enjoy. … Continue reading [Lux] Advanced Rainbow Manipulation