Posted on Jun 4, 2004

Robert L. Fleischer, research professor of geology, gave a talk on
May 7 to the Thayer School of Engineering at Dartmouth
College. The annual lecture, a
Jones Seminar with the title “Serendipitous Radiation Monitors,” described how
past radiation doses can be measured by studying accidental tracks that have
been left in ordinary solids such as eyeglass lenses, decorative glasses at
Hiroshima, an optical filter on the Moon, and frame glasses from living rooms.