Can You Look at the Eclipse With Sunglasses
Millions of Americans volition flock outside Aug. 21 to gaze upward as the "Great American Eclipse" crosses the country. And they volition all need eye protection.
That'south considering it's never safe to view the sun with the naked eye. The sun'southward surface is so vivid that if yous stare at whatever portion of it, no matter how small, it produces enough light to permanently damage your retina.
Length of time doesn't matter either. Without proper center protection, you lot can suffer "eclipse blindness" — a serious injury in which the centre'south retina is damaged by solar radiation — within seconds of staring at the dominicus, according to the American Optometric Association.
Most victims eventually recover their eyesight, but some suffer permanent loss of some or all of their vision.
Read more:
How to take the best photos and videos of the solar eclipse
3 solar eclipse tips from Neil deGrasse Tyson
Flip-flop wearing hikers, wildfire danger could cause chaos during solar eclipse
Solar filters, special eclipse glasses or welder's goggles must be used to view the partial eclipse. Experts suggests that one widely available filter for safety solar viewing is number fourteen welder'due south glass.
A partial eclipse will exist visible everywhere across the nation as well as in the hours earlier and later on a far shorter total eclipse, which volition only be visible for ii-3 minutes along a 67-mile wide path from Oregon to South Carolina.
It is non safe to look at the uneclipsed or partially eclipsed sun through regular sunglasses, unfiltered telescopes or magnifiers or cameras, polarizing filters, CDs/DVDs or space blankets.
The only fourth dimension it'due south ever condom to look at the sunday is during a total eclipse, when the lord's day is completely behind the moon. Nonetheless, belongings binoculars or any other device while you're wearing your eclipse glasses or other center protection can still cause injury because the concentrated solar rays damage the solar filter and enter your eye.
When the moon completely blocks the dominicus'southward brilliant face for 2 or iii minutes during the total eclipse, the otherwise hidden solar corona — the dominicus's outer atmosphere — will become visible. Vivid stars and planets will become visible equally well.
"But you've got to exist careful," said optometrist Myron Wasiuta. "Just earlier it'due south over, you lot'll come across chaplet of light starting to grade on the abaft edge. That'due south the sign that you need to avert your eyes. The dominicus can be bright enough to cause retinal damage."
If you lot buy eclipse glasses, be certain that they are fabricated by one of the 12 companies the American Astronomical Society has certified as condom for use.
American Paper Eyes of Bartlett, Tenn., hoped to produce 100 one thousand thousand pairs of glasses, president John Jerit said terminal month, but may fall short of that goal. The company normally employs virtually 35 people but nearly 80 work there at present.
Some other tried-and-true method is with an one-time-school, home-fabricated pinhole camera. Here's how to make i:
Sources: NASA, American Astronomical Society, American Optometric Clan
Source: https://www.usatoday.com/story/tech/science/2017/07/26/solar-eclipse-2017-how-safely-view-eclipse/508653001/
Belum ada Komentar untuk "Can You Look at the Eclipse With Sunglasses"
Posting Komentar