Jordan was impressed. The entire top floor of the Guild building was devoted to laboratory research. It was a circular floor, almost a thousand feet in diameter, domed with a double layer of controlled quartz that could give graded illumination from full to total darkness including monochrome light to within one tenth of an angstrom. Now, at noon, the sunlight was modulated slightly so that it flooded the tables and benches, the crystal and silver apparatus, the cover-all’d workers with a gentle peach radiance.