Search Results | sunglasses
Your search for "sunglasses" returned 18 results
How Sunglasses Work
science.howstuffworks.com/innovation/everyday-innovations/sunglass.htm
Whether you're hitting the surf or the slopes or just spending a day on the lake, sunglasses are a must-have accessory. Find out if the $10 sunglasses are as good as the high-cost ones.
Is there a way to make my sunglasses scratch-resistant?
science.howstuffworks.com/question613.htm
I recently bought a pair of mirrored sunglasses and they are already scratched. Isn't there a way to make them scratch-resistant?
My glasses have an anti-reflective coating. How does that work?
science.howstuffworks.com/innovation/science-questions/question615.htm
My glasses have an anti-reflective coating. How does that work?
How have NASA space helmets changed optics?
science.howstuffworks.com/innovation/nasa-inventions/nasa-space-helmets-changed-optics.htm
NASA space helmets are nifty devices that allow astronauts to operate in the hostile environment of space, but did you know that the technology behind them has also directly benefitted eyeballs here on Earth? Learn more about NASA and optics.
How Do QR Codes Work? 2D Barcodes Explained
science.howstuffworks.com/innovation/repurposed-inventions/2d-barcodes.htm
2D barcodes are being used in some interesting ways. Visit HowStuffWorks to learn everything about 2D barcodes.
The Science of Shade: Unlocking Photochromic Lenses
science.howstuffworks.com/innovation/science-questions/question412.htm
How can my glasses change from transparent, when I'm inside, to dark when I go outdoors?
How Brazing Works
science.howstuffworks.com/brazing.htm
Welding isn't the only way to make metals, like the ones on your aviator shades, meet up. Brazing can do the trick, too, with a little heat, some filler and some capillary action.
How can a tent use solar power?
science.howstuffworks.com/environmental/green-science/solar-powered-tent.htm
A solar-powered tent can provide lighting in the wild by harnessing energy from the sun. Learn about a solar-powered tent.
How 3-D Glasses Work
science.howstuffworks.com/3-d-glasses.htm
NASA's Mars rovers are sending 3-D images to Earth, so we can see depth and texture on the Martian surface. And how do we see this depth and texture? 3-D glasses, of course! Check out how they work.
How Ocean Currents Work
science.howstuffworks.com/environmental/earth/oceanography/ocean-current.htm
Ocean currents may be driven by tides, winds or differences in density. Learn how ocean currents affect marine transportation and nutrient cycling.