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Your search for "optical illusions" returned 70 results
How Kaleidoscopes Work
science.howstuffworks.com/kaleidoscope.htm
Kaleidoscopes have been fascinating people since the early 19th century. Whether you think of kaleidoscopes as toys or as works of art, no matter how often you look inside, you'll never see the same thing twice.
Guide to Finding an Evening Dress
lifestyle.howstuffworks.com/style/tips-advice/guide-to-finding-an-evening-dress.htm
Are you looking for a guide to finding an evening dress? Check out our guide to finding an evening dress in this article.
How the St. Louis Arch Stands Against All Odds
science.howstuffworks.com/engineering/architecture/st-louis-arch.htm
The St. Louis Arch was so spectacularly designed that, when construction kicked off in 1961, many predicted an epic failure.
How Does an Invisibility Cloak Work?
science.howstuffworks.com/invisibility-cloak.htm
With optical-camouflage technology, the invisibility cloak is a reality. Learn what it is.
How Bonsai Works
home.howstuffworks.com/bonsai.htm
Bonsai is an ancient form of gardening that many consider to be art. Learn more about bonsai and the rich history that comes with it.
How Light Works
science.howstuffworks.com/light.htm
Some of the brightest minds in history have focused their intellects on the subject of light. Einstein even tried to imagine riding on a beam of light. We won't get that crazy, but we will shine a light on everything scientists have found so far.
Why aren't 3-D glasses red and blue anymore?
entertainment.howstuffworks.com/why-arent-3d-glasses-red-and-blue.htm
Remember when 3-D glasses were red and blue lenses? They've gotten a major upgrade. Find out why 3-D glasses aren't red and blue anymore.
How the Nintendo 3DS Works
electronics.howstuffworks.com/nintendo-3ds.htm
The Nintendo 3DS portable video game system lets you play in 3-D without having to wear special glasses. See how the Nintendo 3DS works.
Paper Art Crafts for Kids
lifestyle.howstuffworks.com/crafts/paper-crafts/paper-art-crafts-for-kids.htm
Paper art crafts for kids include paper baskets, customized calendars, and fancy envelopes. Learn more about fun and easy paper art crafts for kids.
How Movie Projectors Work
entertainment.howstuffworks.com/movie-projector.htm
When you see a movie in the theater, do you notice the projector? Without it, you'd be staring at a blank screen. Enter the projection booth and learn what it takes to show a movie.