Duke University

Detecting esophageal cancer with light

A tiny light source and sensors at the end of an endoscope may provide a more accurate way to identify pre-cancerous cells in the lining of the esophagus.

dateJan 04, 2011 in Cancer
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Tangling the microscopic ladder

If a ladder had more than one rung at each step, it would look awkward and would be a bit dangerous to climb. Ladders in the microscopic world were thought to be similar in structure, having only one particle, ...

dateDec 17, 2010 in General Physics
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