Willoughby Animation

 

Cumulus growth from Willoughby Lake 

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Special Physics Photo of the Week

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Physics Photo of the Week - September 22, 2023

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Physics Photo of the Week September 22, 2023 Sun Halo over the Arizona Desert - Photos by Dr. Betsy Arnold, University of Arizona Warren Wilson Professor Dr. Amy Boyd and her research colleagues: Margrit McIntosh, Betsy Arnold, and Lucinda McDade (director of the California Botanic Garden) were  observing environmental parameters near Tucson, Arizona when they noticed this magnificent atmospheric halo visible above the desert.  Lucinda McDade can be seen in the  photo making observations of desert plants.  Click on the photo and n otice the ruler next to the rock on her right side - one of several tools being used.   Regarding the ongoing research in the desert of Arizona Dr Boyd writes: Several of us (Amy Boyd, Margrit McIntosh, Betsy Arnold and Lucinda McDade) study the population biology of an endangered Sonoran Desert cactus, the Nichol's Turk's head cactus, Echinocactus horizonthalonius var. nicholii , in the Waterman Mountains of Arizona.  We've been studying the
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Physics Photo of the Week

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