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“Use it up, wear it out, make it do, or do without” — this message says it all.  Buy good…

Climate change was the hot topic last week, with a steady stream of data, opinions, and aspirations coming out of…

You probably can guess at what are the big contributors to your electricity bill each month; things like the lights,…

<blockquote><em>”Time is what prevents everything from happening at once.”</em> – <a href=”http://en.wikipedia.org/wiki/John_Archibald_Wheeler”>John Archibald Wheeler</a></blockquote> <h2>Choosing Time Scales</h2> One of the…