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The latest from New Orleans.
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"The problem is that Kevin Kelly, in his enthusiasm, wants to make it seem that getting 1,000 people to give you $100 is no great trick."
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"As well as placing tighter constraints on parameters such as the age and content of the universe, the five-year WMAP data provide new, independent evidence for a cosmic neutrino background."
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Hand-wringing about the propriety of the prize in 5... 4... 3... 2...
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"Using an atomic force microscope (AFM), Kim and Namboodiri... found that the silica will stretch as much as gold or silver and will continue to deform beyond the point that would be predicted using its bulk-scale properties."
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A Java applet showing how the trapping forces for optical tweezers work.
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Dave learned many things in New Orleans.
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I'd be real careful diddling with silica. Amorphous glass is taffy if you scale it right. Crystalline silica properties are sensitive to water content - and alpha-quartz is a sponge parallel to its crystallographic c-axis. Internally wet quartz is geologically ductile. Quartz as resonant frequency stabilizer is negatively impacted (screwed) by ppm water. The industry jumps through hoops for sufficiently dry quartz (e.g., EIA Standard 477-1, JIS C 6704, IEC 60758; swept quartz for aerospace).