"We can not confirm that persons using these glasses will not suffer damage or injury to their eyes, so if anyone obtained eclipse glasses from the library at any time between Thursday August 10, 2017 and Sunday, August 13, 2017, DO NOT USE THEM", the library said in a statement. Fienberg said the counterfeit glasses have made it hard for them to keep you safe.
(1) Visible light is the portion of the electromagnetic spectrum that we can see.
The total solar eclipse is coming, and as the excitement builds, so does the worry that it will leave behind a nation of eye problems.
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Solar eclipse glasses are an essential when viewing an eclipse. This blocks out all UV rays and almost all visible light. It is possible that we'll see a lot of people coming through on their way to communities with totality. We'll add you to the map and contact you for the shipping address and the number of glasses you'll need. However, if you're outside the path of the total eclipse, like me, then it's never safe because the sun will only be partially covered.
There are new concerns about counterfeit glasses that could hurt your eyes. Ordinary sunglasses, even very dark tinted ones, are not enough to protect the eyes from the sun's ultraviolet rays. Whatever you can get your hands on, make sure they are approved from NASA like the ones from American paper optics. To view the eclipse, turn your back to the sun and hold the paper with the pinhole over your shoulder.
If you're looking for a place around the city to gather to watch the eclipse, you have a few choices. The metallic dome top is flawless for taking reflective photos to be shared on social media, using the hashtags #7eleven and #solarselfie, the company said. The only safe way to view a partially eclipsed sun is through special-purpose solar filters that meet worldwide standard ISO 12312-2 for safe viewing.