ESP STANDS FOR EXTRA-SENSORY PERCEPTION, or an ability to sense or manipulate things without the help of your eyes, ears, nose, mouth, or skin. If ESP exists, it would allow people to read minds, see through walls, or move things without touching them.
A researcher named Joseph Rhine invented the term ESP. He got his PhD in botany, the study of plants. But in 1927, he abandoned that field, moved to Duke University, and began searching for scientific evidence of ESP. His most famous type of experiment involved a set of 25 cards with the symbols shown on the facing page. They were named Zener cards after Rhine’s colleague, Karl Zener, who came up with the designs. In a Zener card experiment, a person tries to figure out the symbol…