Unlike Lou and Blake, who used their bodies to represent an external event, Luna uses pastel markers to represent the movement of her body. She slides her body down an outdoor play structure. Then, on a large sheet of paper, she makes marks that are suggestive of the continuous downward motion of her body. See if you can find variations in her drawing that capture different aspects of her whole body movement. Note that she also slides her body somewhat when she makes marks, but the focus falls more on the marking than on the sliding. We value these forms of behavior as examples of “embodied cognition,” cases when the whole body movement “talks to” the brain (draw it this way) rather than the brain “talking to” the body (slide this way). Scientists also use their own body intuitions to develop more abstract ideas, such as Einstein imagining he was riding the crest of a wave traveling at the speed of light.