Solar eclipse glasses are flying off the shelves.
The next solar total eclipse in Louisville will be on October 17, 2153. that's 136 years away.
Yolo County it seems can't escape being in the shadow of the moon as the August 21 nationwide solar eclipse draws near. As the moon blocks more and more of the sun's light, your pupils naturally become larger, letting in more electromagnetic spectrum energy and increasing the chances for an eye injury, especially in areas with higher sun blockage.
Due to the earth's spherical shape, the 60- to 70-mile-wide umbra will sprint eastward across a swath from OR to SC at 2,900 miles per hour at the West Coast, slowing to 1,500 miles per hour by the time it reaches the East Coast. Most of Earth's surface is actually in broad daylight off the path of totality and from the moon it would be in full phase, shining down on the lunar surface at its brightest.
But every so often, there's a narrow window when the Earth, sun and moon align.
Whatever you happen to be doing on August 21, 2017, make sure you take the opportunity to step outside to view the total solar eclipse so that you can witness all of the unusual phenomena that surround this spectacular event.
In most places, the eclipse's peak time will be less than 2-and-a-half minutes and viewing will depend greatly on the weather. "I have never been more proud to be a Yellow Jacket". They can be tested before the eclipse by seeing if they project a nice even round image of the normal Sun. "Without ionizing radiation، the ionosphere will relax،going from daytime conditions to nighttime conditions and then back again after the eclipse،" said Marshall.
Although the electromagnetic radiation from the corona, seen as light, is perfectly safe, there is another form of radiation that travels to Earth from the sun.
While Thomas County will not see a total eclipse, expectations are that the moon will cover approximately 90 percent of the sun for a brief period, enough to create a dramatic effect and illustrate the phenomena of an eclipse.
This article is based on an interview that aired on PRI's Science Friday with Ira Flatow.
NOVA's most extensive fast-turnaround film to date, "Eclipse Over America" will be the ultimate companion to this spectacular celestial event.