Detectron DG-2 geiger counter teardown and testing

I take apart a Detectron DG-2 geiger counter, and discover the circuit still works after 60 years!

Explanation of how kilowatt-hour meters work (electromechanical)

I take apart an electromechanical power meter and describe how it uses magnetic fields to measure power consumed.

Custom supercritical CO2 chamber with easy-to-use lid clamp

I built another supercritical CO2 chamber for extraction and drying. This time, I wanted a chamber that was easier to open and close, and could be expanded to larger volumes with the same closure system. The chamber is built from 2" OD .25" wall stainless steel, and I welded a plug into one end and a ring with O-ring gland onto the other.

Quartz crystal thickness monitor for vacuum deposition

I describe how using an oscillating quartz crystal can be used to monitor the thickness of deposited coating in a vacuum chamber.

Supercritical CO2 extraction of cinnamon, coffee, and vanilla with dry ice

I built a small extraction chamber for processing materials with supercritical CO2.

Please refer to my previous videos for more information about supercritical co2:
http://www.youtube.com/watch?v=-gCTKteN5Y4
http://www.youtube.com/watch?v=TvmM6qa2a90

PDF discussing vanilla extraction with SC CO2:
http://www.redalyc.org/pdf/482/48221175004.pdf