Happy Statehood Day, Arizona. From Stevie Nicks and award-winning Mexican food to small towns and Camelback Mountain, here's ...
Happy Statehood Day, Arizona. From Stevie Nicks and the Colorado River to creosote and Camelback Mountain, here's why we love ...
Researchers found a hidden mathematical rule in tree-like art. Branch thickness follows a predictable ratio, making trees recognizable.
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