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March 2008



Heating and Cooling in Wisconsin

Thursday, 27 March 2008 11:54 P GMT-06
My air conditioner is nearing the end of its life and the furnace is quite old as well, although it still works fine.  We are starting to investigate replacement options for both.  In Wisconsin it seems like the main choices are:High effici
Category: Energy

Hubdub Results 3

Saturday, 15 March 2008 7:46 P GMT-06
My previous cumulative results for Hubdub predictive markets was 3-6-2 (correct-wrong-draw).  Here are some more predictive market results from Hubdub.com for bets that I have participated in. Will a civil suit be filed against SF Zoo for Ti

Fluorescent Light Bulb Experiment Part 13

Friday, 14 March 2008 6:44 P GMT-06
One of the GE 100 bulbs burned out.  The estimated life was 1620 hours.  The guaranteed lifetime was supposed to be 8000 hours.  This is the second GE 100 bulb that did not last even close to its specified 8000 hours.  I have repl
Category: Home Projects

Via Modeling 2

Wednesday, 12 March 2008 6:29 P GMT-06
In a previous article I described a model for a crude approximation of a PCB via.  The model was an RLC circuit model created using simple calculations to calculate R, L, and C for the via.  A modification on this that may give better resu

Gibson Robotic Guitar

Friday, 7 March 2008 10:33 P GMT-06
Robotics is likely the next major technology driver for digital electronics.  One very cool application of robotics that I read about is a self tuning guitar by Gibson [1].  A Les Paul guitar was modified to add some electronics, sensors, a
Category: Robotics

Increase in Heating Energy Use for our Home after a New Addition

Saturday, 1 March 2008 5:07 P GMT-06
Last year we got a new addition put on our house over the garage.  The percentage increase in heated square footage with the addition was about 28.8% for our house.  The average total therms used from the main heating period of November thr
Category: Home Projects