Simply cover your right eye, stare at the basket ball and move back and forth away from the screen until the baseball disappears! The reason this happens, is because while most of your retina (the inside of your eyeball) is covered in rods and cones, the place where the optical nerve connects to your retina is not. when an object falls in that place, (and the other eye cant see it), it disappears! If you think this is cool or unexpected please comment, love, fav, and add to studios. thanks!
