“Archimedes: Ancient Text Revealed by X-Ray Vision” will be the topic of a free lecture under the stars on Thursday, August 3, at 7 p.m., on the grass outside the Cantor Arts Center at Stanford.

Uwe Bergmann of Menlo Park, a physicist at the Stanford Linear Accelerator Center, will describe how SLAC scientists are revealing original texts from the Greek mathematical genius, which were erased and written over in the 10th century.

Intense X-ray beams from the Stanford Synchrotron Radiation Laboratory can make the iron in the original ink glow, making it possible to decipher the underlying texts on the two ancient parchment documents.

The Cantor Arts Center and Cool Cafe will be open from 5 to 8 p.m. for people who want to browse or enjoy a $12 organic buffet barbecue, either meat or veggie. Chairs will be provided, or people can bring their own chairs, blankets and picnics.

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