Skip to main content

You won't believe your eyes


504 Questions Answered

Best of Web

Let’s Begin…

Every optical illusion you've ever seen is a hint that what you see and what you perceive are two different things. That’s why SmarterEveryDay investigates cases where you actually can't believe your eyes.

About TED-Ed Best of Web

TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.

Meet The Creators

More from How Things Work