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Physics News Update
Number 869 #6, August 15, 2008 by Phil Schewe

Corrections

In Update 868 we referred to MRI as “medical resonance imaging,” which gives away to medical science. The acronym more properly stands for “Magnetic Resonance Imaging,” which itself is a euphemism for imaging based on nuclear magnetic resonance. Also in the polar bear story an audio frequency referred to as 20 kilohertz should have been 20 hertz.