links for 2009-03-29

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Different Cliffs, Different Bottoms, Different Parachutes « Easily Distracted "If one of the goals of stimulus is to get American consumers shopping again, then I think itâs going to take some substantial changes to the entire retail landscape for that to be more than a momentary upward blip in a…
kitchen table math, the sequel: alternate universe "While visiting schools in a variety of districts, I began to notice something that puzzled me. Some of these schools, particularly those with large numbers of poor and minority children, are working against daunting â some would say unreasonable…
The Virtuosi: Physics Challenge Award Show "So before we officially announce our winner, let's backtrack and build up some suspense.  The challenge was to come up with a bunch of MacGyveresque experiments to determine as closely as possible the standard second, meter and kilogram using only the…
Swans on Tea » Going UP (Very Precisely) "Ignoring that weâre working in English units, which scientists donât really do very much, the big thing that pops out to the budding, fully-bloomed, or dying scientist is the misuse of significant digits. Do we really believe the estimate of the houseâs…