Search Results | corrective lenses

Your search for "corrective lenses" returned 25 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.

Is there a way to make my sunglasses scratch-resistant?

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I recently bought a pair of mirrored sunglasses and they are already scratched. Isn't there a way to make them scratch-resistant?

How Does a Fresnel Lens Work? The Magic Behind the Glass

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I have a thin piece of plastic mounted on the back window of my RV. It magnifies things so I can see better when I'm backing up. How can such a thin piece of plastic magnify things? A regular glass magnifying lens would have to be curved on both sides and much thicker.

What are motion cards and how do they work?

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A friend of mine showed me this card that the image changed depending on the angle that you view it at. How does that work?

Why are objects in the side-view mirror closer than they appear?

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"Objects in mirror are closer than they appear." That little line appears so often and in so many contexts, it's almost lost all meaning -- but why is it there, and what does physics have to do with it?

10 Cool Inventions From the 1980s

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Though the 1980s might remind you of the days of MTV and leg warmers, there was a lot going on in technology. In fact, quite a few of the technologies we rely on today were making their debut.

How Sunglasses Work

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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.

How Artificial Vision Will Work

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There was once no cure for blindness, but artificial vision systems implanted directly on the retina may restore sight. Is a silicon microchip the answer to combating retinal disease?

10 Amazing Inventions We Don't Appreciate Enough

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From the moment we are awoken by our alarm clock in the morning, right through to when we turn out the light before going to sleep, we use an enormous amount of inventions that make our day to day lives much easier. Many of these are relatively new inventions, whilst there are also dozens of […] The post 10 Amazing Inventions We Don’t Appreciate Enough appeared first on Goliath.

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