"Hounsfield’s success with computers had earned him good standing in the science side of the company. Flush with money broken out of teenagers’ piggy banks worldwide, EMI gave Hounsfield the freedom to pursue independent research. ... Hounsfield’s idea was to measure in three dimensions, by scanning an object - most dramatically, a human head - from many directions. The result was a cross-sectional, interior image that he called computed tomography, or CT. As the Nobel Prize committee put it, in giving him the Nobel Prize in medicine in 1979, before the CT scanner, ”ordinary X-ray examinations of the head had shown the skull bones, but the brain had remained a gray, undifferentiated fog. Now, suddenly, the fog had cleared.”"http://epidemix.org/blog/?p=265
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