Three thousand years ago, in ancient China, sages stuck red hot pokers into empty turtle shells to study the way cracks developed on the flat side of the shell. Depending on the pattern made by the ...

In 1921, Swiss psychologist Hermann Rorschach created a set of inkblots. He asked patients what they saw in them, hoping it would reveal their hidden thoughts and emotions. The test later became ...

A mountain rock in the shape of a human face. Atlas Mountains, Morocco. Similar to Nathaniel Hawthorne's short story, "The Great Stone Face." Source: Gusman/Bridgeman Images, used with permission "One ...

One night my wife and I had a red wine accident on our living room couch. The couch was covered with an Indian shawl. The next day, I held up the shawl and saw the following: Source: Fred ...