Extreme wood bending with ammonia

Bending wood with ammonia is not really DIY, but I show the process, which is extremely effective.  There is also a commercial product that is pre-treated flexible wood, which hardens after being clamped in the desired shape.

http://boingboing.net/2011/05/06/inventables.html
Hmm, it seems the product may no longer be available -- I can't find it at Inventables.
https://www.inventables.com

Pre-treated flexible wood product patent:
https://www.google.com/patents/US5360631

Distilling pure anhydrous ammonia

I have a few upcoming projects that require anhydrous ammonia. In this video, I show how to distill it from "ammonia water" similar to common glass cleaner.
http://en.wikipedia.org/wiki/Birch_reduction
http://www.engineeringtoolbox.com/ammonia-pressure-temperature-d_361.html

Magnetic Propulsion

This is a neat little demo that shows how permanent magnets can be used to create propulsion along a conductive copper track

How Digital Light Processing (DLP) works

Digital Light Processing projectors use a chip that is covered with tiny mirrors that tilt back and forth. When the mirror is tilted one way, it reflects light out through the front of the projector, creating a bright pixel. When the mirror is tilted the other way, the pixel is dark. In this video, I explain how DLP works and show a macro-scale model.

Review of National Instruments VirtualBench

The VirtualBench is an all-in-one piece of electronic test gear that combines an oscilloscope, logic analyzer, function generator, DMM, triple output programmable power supply, and an 8-channel digital I/O bus.  It can be controlled with a dedicated NI app, or programmatically controlled with LabView or C.  I show the device's usage and duggest which situations may benefit from using this device.