A new study ranks 100 American cities according to how "Bible-minded" they are. The top spot went to Chattanooga, Tenn. Several cities in the Northeast and West were ranked "least Bible-minded." Joseph Kaczmarek/AP hide caption

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Swarms of locusts in Madagascar, or clouds of elementary particles, without sound, odor, flavor or color? Reality is harder to pin down than you first might think. Bilal Tarabey/AFP/Getty Images hide caption

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