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A cat demonstrating a pair of eclipse glasses. Solar viewers (also known as solar viewing glasses or solar eclipse glasses) are special eyewear designed for direct viewing of the Sun. Standard sunglasses are unable to filter out eye-damaging radiation. Solar viewers can be used for safe viewing of solar events such as eclipses.
Before 2017, it had been more than three decades since the last total solar eclipse was visible from the U.S. in 1979. But just because this once-in-a-lifetime event is happening twice within a ...
Some glasses and viewers carry outdated warnings about using the glasses for more than three minutes at a time or recommend throwing them away after more than three years, but these do not apply ...
Sunglasses with deep side arms can block side, or peripheral, vision and are not recommended for driving. [55] Even though some of these glasses are proven good enough for driving at night, it is strongly recommended not to do so, due to the changes in a wide variety of light intensities, especially while using yellow tinted protection glasses.
Some video cameras have a night mode that gives an IR image under the right conditions. [5] Digital cameras can also be used. [6] Devices for airport security are able to see through clothing quite well. Some of these are true X-ray devices, using backscatter X-rays. The devices are not portable and use a typical X-ray display screen, not goggles.
Each pair of glasses reportedly costs Meta $10,000 to make, and the company says it needs time to get them to a price that makes them plausible — think something in the $1,000-ish range, like a ...
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