Applied Science - Channel
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Laser microphone for audio surveillance via window panes
I bounced a laser beam off of a window in my house and recovered the audio from inside the room v... -
Milling machine tutorial - cutter selection, speeds and feeds, coolant, high speed machining
I discuss the basics of selecting the right cutter for the job, choosing feeds and speeds, and ge... -
Building a liquid crystal display (LCD)
I've been exploring technology made possible by having clear, patterned electrodes on glass, and ... -
How to chemically strengthen glass (eg Gorilla Glass)
I describe why glass fails, and how to improve its apparent strength via a simple chemical treatm... -
Waterjet cutter built with a cheap pressure washer
Building an abrasive waterjet cutter with a $150 pressure washer. Follow-up video with gasoline-p... -
World's smallest lightbulb flasher? Flashing Light Prize 2017
I built an extremely small lightbulb flasher and describe the design process and challenges. Thi... -
Review of National Instruments VirtualBench
The VirtualBench is an all-in-one piece of electronic test gear that combines an oscilloscope, lo... -
Automatic cat feeder with stepper motor and ATMega AVR
Here's a project that I built to feed my cat when I am away for short trips. It uses a commercia... -
Electron microscope slow-motion video of vinyl LP
I describe how I made a stop motion animation of a phonograph needle in an LP groove using an ele... -
Handheld CNC router repairs old CNC machine
I show how to use a handheld CNC router, the Shaper Origin, to make aluminum parts for my CNC mil... -
A refrigerator that works by stretching rubber bands
Handheld CNC router: / Rubber band thermodynamics: Rubber band bicycle wheel: Thermal camer...