[sfriswolker] sent in his progressing black keyboard lighting mod. The first version used a CCFL. When that burnt out, he rebuilt it with LEDs. [google english transations – part 1 and part 2]
Day: September 15, 2006
CD Spectrometer (bonus)
Allright, the keyboard light thing was a bit weak. Check out this el cheapo cd light spectrometer. The refractive properties of a CD are exploited to break up visible light into it’s components. Definitely an unexpected use of a CD. Of course, if you’re going for substance detection, you can use your CDROM as a spectrometer to identify uh, suspicous substances.
