# data[].attributes.attachment_link.readable_text
In case, you are having white hair or grey hair then it is always necessary to choose hair care products to get black hair. Now a day vast numbers of the products are available to get black hair but you must carefully choose best one. The challenging biological structure of [...]

# data[].attributes.attachment_link.description
In case, you are having white hair or grey hair then it is always necessary to choose hair care products to get black hair. Now a day vast numbers of the products are available to get black hair but you must carefully choose best one. The challenging biological structure of [...]

# data[].attributes.attachment_link.readable_text
To build your own, get a carton and cut a hole in one side, big enough to poke your head through. Paste white paper on the inside surface that you will be facing. Then punch a pinhole into the opposite side, high enough so that the little shaft of light will miss your head. For a sharper image you can make a better pinhole by cutting a one inch square hole in the carton, taping a piece of aluminum foil over this hole and then making the pinhole in the foil. Finally, tape the box shut and cover all light leaks with black tape.

# data[].attributes.attachment_link.title
How to Watch the Solar Eclipse Like a 1960s School Kid

# data[].attributes.attachment_link.description
To build your own, get a carton and cut a hole in one side, big enough to poke your head through. Paste white paper on the inside surface that you will be facing. Then punch a pinhole into the opposite side, high enough so that the little shaft of light will miss your head.

# data[].attributes.attachment_link.readable_text
NASA-Funded researchers will be chasing the solar eclipse on Aug 21 (Photo Illustration: NASA/Faroe Islands/SwRI

The total solar eclipse on August 21, 2017 is the first of its kind to go coast-to-coast across the continental United States in nearly a century. While the partial eclipse will start earlier and end later, the total eclipse will travel from Oregon to South Carolina in a speedy 93 minutes. Its narrow, 70-mile-wide, path of totality will begin at Lincoln Beach, OR at 10:15 a.m PDT (1:15 p.m. EDT) and continue through Idaho, Wyoming, Montana, Nebraska, Iowa, Kansas, Missouri, Illinois, Kentucky, Tennessee, Georgia, and North Carolina, before ending in Charleston, SC at 11:48 a.m. PDT (2:48 p.m. EDT).

For Americans in the path of totality, the wondrous spectacle, when the moon will obscure the sun leaving behind its breathtaking corona, will last anywhere from one minute to a maximum of 2 minutes and 41 seconds. However, the fortunate researchers aboard two WB-57F jets chasing the moon's shadow, or umbra, will enjoy the phenomenon for three and a half minutes. As you may have guessed, the team led by Amir Caspi of the Southwest Research Institute in Boulder is not being sent for a pleasure cruise but to conduct some important experiments for NASA.

August 21 total Solar eclipse projected shadow (Photo Credit: NASA's scientific visualization studio)

The airplanes, which have been retrofitted with two telescopes, one to observe the sun's visible light and the other to monitor Mercury's infrared light, will fly parallel to one another and maintain a 70-mile distance between them to straddle the moon's shadow on Earth. Cruising at an altitude of 50,000-feet, where the cloud-free skies will be twenty to thirty times darker than that on the ground, the researchers hope to capture detailed images of the corona, an aura of plasma that surrounds the sun.

The team hopes the pictures will enable scientists to better understand why the corona is millions of degrees hotter than the sun, which sports a relatively cool temperature of 10,000°F (5,600°C). One theory suggests it is the accumulated impact of the numerous micro explosions, or nanoflares, that are believed to regularly emanate from the sun. However, since the flares are too small to be observed under normal conditions, scientists have been unable to verify the theory. "People have made observations of 10 million degree plasma in the corona, and that kind of heat is suggestive of nanoflare heating," Caspi says. "Nanoflares are a theory, and we think they exist, but we don't really know for sure."

Sun's corona and nano solar flare (Photo Credit: By NASA Goddard Space Flight Center [CC BY 2.0 via Wikimedia Commons]

In addition, the researchers also hope to use the high-definition photographs to better understand how the sun's corona manages to remain relatively untangled, despite the constant movement. Even when the plasma loops and arcs do get a little unruly, the corona restores order by tossing them out as solar flares or a mass ejection. According to Caspi, "Solar flares can cause radio interruptions on Earth, but even bigger dangers come from coronal mass ejections. That's when the sun throws off billions of tons of material, and the particles can come toward Earth. When that happens, it can knock out satellites, it's a hazard for astronauts, and it can knock out power systems here on the ground." An understanding of how the corona remains organized will enable scientists to predict coronal mass ejections.

The infrared telescopes fitted on the two jets will help create the first-ever thermal image of Mercury, the closest planet to the sun, which will be more visible in the darkened skies. The scientists believe that studying the variation of temperatures across this usually hard-to-observe planet's surface will help reveal its soil composition and provide some insight into its formation.

The sun's outer atmosphere or corona during a total solar eclipse (Photo Credit: M.Druckmiller/NASA

Though this is the most exciting experiment, it is just one of the 11 being funded by NASA to take advantage of the total solar eclipse. While most are focused on the sun, the agency is also using the event to investigate how the sudden reduction of light and temperature affects weather, vegetation and animal behavior on Earth.

Whether the "Great American Eclipse" will reveal any solar secrets remains to be seen. However, it will definitely be a thrilling event to watch so mark your calendars, and more importantly, be sure to wear special eclipse glasses or hand-held solar viewers to avoid damaging your eyes. And don't forget to share your experience with us by writing your comments below.

Resources: BJInsider.In NASA.gov,NPR.org

# data[].attributes.attachment_link.title
Why NASA Researchers Plan To Chase The "Great American Eclipse" In Jets

# data[].attributes.attachment_link.description
The total solar eclipse on August 21, 2017, is the first of its kind to go coast-to-coast across the continental United States in nearly a century. While the partial eclipse will start earlier and end later, the total eclipse will travel from Oregon to South Carolina in a speedy 93 minutes.

# data[].attributes.attachment_link.title
See How the Solar Eclipse Will Look From Anywhere in the U.S.

# data[].attributes.attachment_link.description
Enter any location in the US on our interactive map and we'll show you exactly what the August 21, 2017 solar eclipse will look like there.

# data[].attributes.attachment_link.readable_text
5 surprising effects the total solar eclipse will have besides darkness
August 07, 2017; 9:12 PM This astronomy blog was written by AccuWeather Meteorologist Brian Lada.

In less than two weeks, millions of Americans will witness day turn to night as the moon blocks out the light from the sun, but there is more to the celestial spectacle than many think.

While all attention will be on the sun and the moon, many people's surroundings will change during the brief moments of totality.

Subtle differences may be noticed in areas that only experience a partial solar eclipse, but much bigger changes will take place along the narrow path from Oregon to South Carolina that see a total eclipse of the sun.
1. 360-degree sunrise/sunset
While everyone's attention will be focused on the sky, looking down can reveal another scene that not many have experienced.

Spectators that look at the horizon during totality will witness the colors of sunrise and sunset around them in every direction.

This 360-degree sunset effect is caused by the light from the sun in areas outside of the path of totality and only lasts as long as the face of the sun is covered by the moon.
2. Stars and planets
As the moon causes day to turn to night, the darkness will reveal the stars in the sky as well as a few planets.

People shouldn't waste too much time looking for planets and constellations since many of these can be seen at night during different parts of the year. However, the eclipse will make it easy to spot Mercury, a planet that can be tricky to spot due to its close proximity to the sun.

If you are in the path of the Aug. 21st eclipse, you will see planets during totality! The gem is Mercury, which is bright, but rarely seen! pic.twitter.com/m1V1KsPx8T

- Dave Samuhel (@Dsamuhel) July 5, 2017

The celestial alignment will also reveal the sun's corona, the area of hot gas the surrounds the sun.

A few lucky spectators may even be fortunate enough to see a meteor streak across the sky during the brief period of darkness.
3. Light pollution and city lights
Those watching the total solar eclipse from a city, parking lot or street corner may still see some light during the brief period of totality.

This light will not be from the sun, but rather streetlights that automatically turn on when it gets dark outside.

These automatic lights will not ruin the eclipse, but it may make it more difficult to spot planets and stars in the sky during totality.
4. Temperature change
Not only will an eclipse cause the environment to appear different, but also feel different.

"When sunlight fades at twilight, we always notice how things start to cool down. The same is true for the temporary dimming during a total solar eclipse," NASA said.

Depending on factors such as the time of year, cloud cover and the length of totality, the air temperature can drop more than 20 degrees F.

During a solar eclipse in 1834, the air temperature in Gettysburg, Pennsylvania reportedly dropped by 28 degrees F.

Astronomers aren't expecting the temperature to drop quite that much, but people may still feel the temperature drop by around 10 degrees F.

One of the rare phenomenon to look for during the total solar eclipse is something called shadow bands or shadow snakes.

"Shadow bands are thin, wavy lines of alternating light and dark that can be seen moving and undulating in parallel on plain-colored surfaces immediately before and after a total solar eclipse," NASA said.

Some people also call these shadow snakes since their wavy motion can look like snakes slithering on the ground.

Scientists still do not fully understand what causes shadow bands, but they only occur during the seconds leading up to and the seconds immediately following totality.

This phenomenon does not happen during every eclipse, so it's not a guarantee to see them.

When shadow bands do occur, they can be difficult to spot since they are often dim, so people trying to view them should set up a large white poster board, piece of plastic or bed sheet at their viewing site.

For more astronomy news, visit our astronomy blog and our astronomy pages on Facebook and Twitter. Follow @AccuWeatherAstronomy

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com

# data[].attributes.attachment_link.title
5 surprising effects the total solar eclipse will have besides darkness - Dave Samuhel Weather Blog

# data[].attributes.attachment_link.description
August 07, 2017; 9:12 PM This astronomy blog was written by AccuWeather Meteorologist Brian Lada. In less than two weeks, millions of Americans will witness day turn to night as the moon blocks out the light from the sun, but there is more to the celestial spectacle than many think.