As the moon passes by the sun, the moon completely blocks the sunlight in an area of total eclipse and blocks a portion of the sun's light in areas of partial eclipse. "We recommend that you DO NOT use this product to view the sun or the eclipse".
Amazon recently sent out an email to customers to let them know some of the solar eclipse glasses they have been selling were not confirmed safe for viewing the eclipse.
"It's getting hard to find them now", he said.
This time, the path of total eclipse will be about 70 miles wide and begins in OR on the west coast and travels to SC on the east coast, the National Aeronautics and Space Administration (NASA) reports on its eclipse website, eclipse2017.nasa.gov.
As the big event nears, demand for solar glasses is at an all-time high and an alarming number of fake glasses have entered the market. And a two-pack at Casey's General Store in Verona could be had for $2.99.
Staring at the sun can damage an eye's retina, causing temporary or even permanent damage. "It doesn't take very long before you're exposing your eyes to serious risk". However, in Madison - where a maximum of 85 percent of the sun will be blocked by the moon at about 1:15 p.m. - that won't be an option.
A shop steward for Local 2665, the union that includes Cedar Hill Firefighters, said they ordered about 250 glasses from Amazon to hand out. Those glasses were among those that were deemed safe.
The public is encouraged to come and learn about the Solar Eclipse that will take place on August 21, and how to view the eclipse safely.
"Make sure to help children to use solar filters and eclipse glasses properly", Dr. Ronold Tesch said. However, these locations are not certified by NASA and the American Astronomical Society.
More safety tips can be found at aao.org/eye-health/tips-prevention/solar-eclipse-eye-safety.
On Aug. 21, the entire viewing area will be plunged into darkness. "Old fashioned pinhole viewers work just as good. and and they cost nothing".