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How do 3-D glasses work?
They look so unimpressive: a pair of flimsy glasses with thin plastic lenses, one blue and one red. But when you wear them in a 3-D movie, the images seem to leap off the screen toward you. How does the magic work?
They look so unimpressive: a pair of flimsy glasses with thin plastic lenses, one blue and one red. But when you wear them in a 3-D movie, the images seem to leap off the screen toward you. How does the magic work?
Mood rings were an extremely popular fad in the 1970s. How do they change color, and can they really tell your mood? See more »
Some of the newer yo-yos have a special "clutch" system, so that when the yo-yo slows down it comes back up by itself. How does a yo-yo clutch work? See more »
Throwing a boomerang isn't as easy as it looks in cartoons. There's a technique to it -- learn how to throw a boomerang (and have it actually come back to you) in this article! See more »
A drawing toy with a white screen and a "pen" that lets you draw on it, along with a slider to erase the whole thing when you're through: Magna Doodle has remained popular with kids despite its simplicity. See more »
Add your own personal touch to a child's toy collection by making toys yourself. This article provides instructions for making everything from play dough to jigsaw puzzles, rocking horses and sandboxes. See more »
The world's most recognizable doll, Barbie was introduced in 1959 by Mattel, and she continues to entrance young girls half a century later. Learn about Barbie's history and what she has to do with a German doll named Lilli. See more »
Most of us have been eating PEZ candy since we were kids. What does PEZ stand for, and where did the kooky dispenser come from? See more »