Demonstrating The Photoelectric Effect Using Neon Lamps

Neon lamps are fun to play with. These old-school indicators were once heavily utilized in many types of equipment for indication purposes but now seem largely relegated to mains voltage indication…

CMOS Oscillator Circuit Gets An Eatable Input

In interaction designer [Leonardo Amico]’s work Processing Decay, lettuce is used as an input to produce sound as an element within a CMOS circuit.  We’ve all seen lemons and potatoes doubling in s…