| http://www.w3.org/ns/prov#value | - Coauthor of the paper ???Preserving McDonald Observatory's Dark Night Sky???, Bill is a strong proponent of preserving the night sky.His topic was Taking Back The Night, a tremendous presentation of the impacts of light impingement and bad lighting design, corrective actions, and motivation to do the right things for keeping the light use effective, efficient, and appropriate.The talk was extremel
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