Foundation ANAR, a nonprofit organization dedicated to the protection of children at risk, has come up with a clever illusion as part of a campaign against child abuse. The images use lenticular technology to communicate different messages to children and adults, based on their respective heights and angles of view.
The views expressed are those of the author(s) and are not necessarily those of Scientific American.
ABOUT THE AUTHOR(S)
Susana Martinez-Conde is a professor of opthalmology, neurology, and physiology and pharmacology at SUNY Downstate Medical Center in Brooklyn, N.Y. She is author of the Prisma Prize-winning Sleights of Mind, along with Stephen L. Macknik and Sandra Blakeslee. Their forthcoming book, Champions of Illusion, will be published by Scientific American/Farrar, Straus and Giroux.