Search Results | sunglasses
Your search for "sunglasses" returned 18 results
How Corrective Lenses Work
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Eyeglasses are one of the most common sights in the world. Learn what goes into creating the lenses and how to read an eyeglass prescription.
Top 10 NASA Inventions
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The men and women of NASA are an ingenious bunch, and they're not just inventing amazing things for space. Which inventions have changed our lives here on Earth?
How Electroluminescent (EL) Wire Works
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Electroluminescent wire is widely used by artists to illuminate clothing, bicycle spokes, turntables and even cars. Learn about electroluminescent wire.
How Solar Thermal Power Works
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Solar thermal power can revolutionize energy production. Learn all about solar thermal power at HowStuffWorks.
How Light Microscopes Work
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The human eye misses a lot -- enter the incredible world of the microscopic! Explore how a light microscope works.
10 Insane Disguises That Actually Worked
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We're not talking about one of those laughable get-ups that celebs don when they want to go incognito for a latte. Nope, we're talking elaborate disguises -- from operatic to scientific.
How Space Suits Work
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We are seeing a lot more space suits now that the international space station is occupied. Learn how space suits work and why they cost $12 million each!
How Do Solar Panels Work?
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Solar cells use sunlight to produce electricity. But is the 'solar revolution' upon us? Learn all about solar cells, silicon solar cells and solar power.