[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

QuickType Scientific Symbols [Updated June 26th]

Some of my text-friends ask me how I can quickly type out mathematical symbols when we are discussing homework problems. Well, for one, I enabled the Greek keyboard on my phone, and then there's this: taking advantage of the automatic text-replacement system built right in macOS and iOS. To use this table, on iOS and … Continue reading QuickType Scientific Symbols [Updated June 26th]

What Does it (really) Take for an ECLIPSE?

I guess you know the drill by now. Round earth with a moon whizzing around, and the pair occasionally block sunlight from each other.  Neat stuff. Do you want to see an actual ray diagram of that? Yes! Well, I drew one in Adobe Illustrator, and then converted it to html. Edit: WP Does not … Continue reading What Does it (really) Take for an ECLIPSE?