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Your search for "sunglasses " returned 161 results
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 Intimidating Are You?
play.howstuffworks.com/quiz/how-intimidating-are-you
Are other people utterly terrified of you, or do they think that they can talk you into doing anything they want? Find out if you're intimidating, normal or a total softie by taking this revealing psychological quiz!
10 Must-have Accessories for Vacation
lifestyle.howstuffworks.com/style/accessories/10-accessories-for-vacation.htm
Knowing what accessories to have for vacation can make packing easier. Take a look at these 10 must-have accessories for vacation at HowStuffWorks.
9 of the Weirdest Lost-and-found Items in the World
money.howstuffworks.com/9-weirdest-lost-and-found-items.htm
From diamond rings to prosthetic legs, people lose and find the strangest things. HowStuffWorks looks at 9 super interesting lost-and-found items.
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.
Our Online Personalities Change Across Different Social Media Platforms
A new Penn State study examines how social media platform affects our public personae. Learn more in this HowStuffWorks article.
How does aging work?
health.howstuffworks.com/wellness/aging/aging-process/question755.htm
How does aging work? Take look at some of the common internal and external signs of aging and ways to reduce the aging of the skin at HowStuffWorks.
How does safety glass work?
auto.howstuffworks.com/car-driving-safety/safety-regulatory-devices/question508.htm
Why is it that at the scene of a car accident, the broken glass is always in really small pieces, yet when a baseball breaks a house window, there are large jagged pieces?
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?