Tag Archives: ben white

Resonance in Rainbow Bridge

University of Utah study listens to the natural bridge vibrate and sing

Utah’s iconic Rainbow Bridge hums with natural and man-made vibrations, according to a new University of Utah study, published September 21 in Geophysical Research Letters. The study characterizes the different ways the bridge vibrates and what frequencies and energy sources cause the rock structure to resonate. The vibrations are small, according to geology and geophysics professor Jeff Moore, but the study provides a baseline measure of the bridge’s structural integrity and shows how human activities can rattle solid rock. (more…)

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When grassroots activism becomes a commodity

UCLA sociologist investigates ‘astroturf’ campaigns in new book

Coming at the height of public opposition to Wal-Mart’s labor practices and expansion into urban markets, the founding in 2005 of Working Families for Wal-Mart appeared to reflect a spontaneous groundswell of public support for the retail giant.

In fact, it was no conventional grassroots campaign. A newspaper reporter later discovered that the group’s lone founder was Wal-Mart and the campaign originated with a consultant hired by the company. (more…)

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