2009

• the energy-efficient future 2009-08-01 08:51:25-05:00 (CDT)

2008

• A/C Power Diagram for Hal's Desk. 2008-10-03 22:50:16-05:00 (CDT)
• Rewrite the tax code! 2008-05-30 07:18:21-05:00 (CDT)

2007

• Wattage 2007-06-20 17:58:13-05:00 (CDT)