Media Blog – Morons and Funnies
Intro to Illusions & Perceptual Deceptions

"the weird visual effects caused by a gravity anomaly created by an igneous intrusion in the adjacent hillside. As a geologist, I can tell you this is NOT true. It is strictly optical illusions." Sandlot Science Mystery Spots Explained http://www.sandlotscience.com/MysterySpots/MysterySpots.htm

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