Leonardo da Vinci was perhaps the most universal genius of all time. He was an Italian draftsman, painter, sculptor, architect and engineer whose genius epitomized…
Here’s one that has me puzzled for days! Even though we successfully cracked both the Mad Professor and Irish Leprechauns puzzle, I can’t seem to understand how this one works. As…
The Thatcher effect or “Thatcher illusion” is a phenomenon where it becomes difficult to detect changes in an upside down face, despite identical changes being…