Social media users were stumped by a viral brain teaser that challenged them to spot all the hidden human faces in a lamb-themed optical illusion. Monday, Jul 07, 2025. New Delhi o C.

University of Vienna. (2019, July 25). How to trick electrons to see the hidden face of crystals. ScienceDaily. Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2019 / 07 ...