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DSC_1206.NEF [18/18] Physics groupies! Brian Greene and Lawrence Krauss after the Smithonian String Theory Debate Washington, DC 3/28/2007 Photo By: John Boswell Photo Info Model: NIKON D70 Capture Date: 3/28/07 9:10:44 PM Shutter Speed: 1/60 sec Aperture: f5.3 ISO Speed: 1600 Exposure Bias: +0.0 Exposure Program: Program Focal Length: 80.0 mm Focus Distance: Lens: 18-200 mm Sensing: One-chip color area sensor Light Source: Auto Flash: ON - Auto mode, return light detected Metering Mode: Pattern Orientation: Default