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Tony Stewart and Dale Earnhardt Jr want a second NASCAR dirt race at Eldora Speedway

Tags: #tonystewart #nascar #dirtracing

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Calculate the math of putting 99% into the 1%. 🙆🏻‍♀️

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#F1 These insane accidents will keep you on the edge of your seat :O

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Jets legend Darrelle Revis is done

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#mma news Russian MMA promotion M-1 announces deal with the UFC

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Twice last week, Donald Trump told a vivid story about how he had spoken to reporters at his golf course in Scotland the day before the Brexit vote in 2016 and correctly predicted the outcome. None of this happened.

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The 30 best photos of the 2018 World Cup

Shared from my Google feed

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The only winner in explosive Kawhi-DeRozan trade

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Notre Dame, Paris

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Reason to paint
“If I could say it in words there would be no reason to paint.
-------” Edward Hopper

#pakistan #punjab #street #streetphotography #nikonshooters #nikond810
#portrait #portraiture #portraitphotography

#hqspStreetDoc for +HQSP Street & Documentary

+Street Photography Saturday curated by +Sunny Wu
#hqspportraits +HQSP Portraits curated by +Heiko Köster +Christian Madsen
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+BTP Editors' Choice (Top Photo page)
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pleasant shadow

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During the early morning of July 28, Earth will pass between the sun and the moon to cast a shadow on our 4.5-billion-year-old satellite. It will be the longest total lunar eclipse in roughly 100 years! Earth's shadow isn't a dull gray, though. It ranges from orange to an eerie blood-red hue if you're right in the middle, which is precisely where the moon will be this time around.

🔶How a total lunar eclipse colors the moon red🔶

A total lunar eclipse and a total solar eclipse are similar, if not the reverse of one another, but their appearances are significantly different.

During a solar eclipse, the moon passes between Earth and the sun to cast its shadow on our planet. The shadow is colorless because the moon has no atmosphere to scatter or refract any sunlight.

Earth, of course, is a different story.

Our planet's nitrogen-rich atmosphere takes white sunlight, a mix of all colours of the spectrum, and scatters around the blue colours. This makes the sky appear blue during the day and the sun yellow.

Around sunset and sunrise, the light reaching our eyes has been more throughly scattered, so much that blues are nearly absent. This makes the sun and its light appear more orange or even red. Roughly 386,200 kilometres (240,000 miles) away at the moon, the Earth would look quite stunning as the same air, like a big lense, refracts that tinged light toward the full moon.

"If you were standing on the moon's surface during a lunar eclipse, you would see the sun setting and rising behind the Earth," David Diner, a planetary scientist at NASA's Jet Propulsion Laboratory, wrote in a blog post.

"You'd observe the refracted and scattered solar rays as they pass through the atmosphere surrounding our planet."

This is why lunar eclipses are orange-red: All of that colored light is focused on the moon in a cone-shaped shadow called the umbra. The moon is also covered in ultra-fine, glass-like rock dust called regolith, which has a special property called "backscatter".

This bounces a lot of light back the same way it came from, in this case toward Earth (Backscattering also explains why full moons are far brighter than during other lunar phases.) So, when we're looking at the moon during a total lunar eclipse, we're seeing Earth's refracted sunset-sunrise light being bounced right back at us.

The red color is never quite the same from one lunar eclipse to the next due to natural and human activities that affect Earth's atmosphere.

"Pollution and dust in the lower atmosphere tends to subdue the color of the rising or setting sun, whereas fine smoke particles or tiny aerosols lofted to high altitudes during a major volcanic eruption can deepen the color to an intense shade of red," Diner said.

🔷Where and when to see the total lunar eclipse🔷

If the weather cooperates, most of eastern Africa, the Middle East, and central Asia should see the full and total lunar eclipse. Scientists in Antarctica should also have a great view.

Europe, eastern Asia, Australia, Indonesia, and other regions will also enjoy a partial lunar eclipse, where the moon passes partly through Earth's shadow.

Western Australia will be the only Australian state to catch the entire eclipse.

Here's when to catch it in Australia (times in AEST):

3:14am: The penumbral eclipse begins when the Earth's penumbra starts to touch the moon.5:30am: The total eclipse can be seen when the moon is fully red.6:21am: Maximum eclipse.7:13am: Total eclipse ends and moon will set in the west-southwest.

You can still watch on a live webcast, though, if you're located elsewhere.

🔸This article was originally published by Business Insider's
Dave Mosher & Shayanne Gal ~18 July 2018

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Autism risk determined by health of mom's gut, research reveals

The risk of developing autism-spectrum disorders is determined by the mother's microbiome—the collection of microorganisms that naturally live inside us—during pregnancy, new research from the University of Virginia School of Medicine suggests. The work raises the possibility that preventing forms of autism could be as simple as an expectant mom modifying her diet or taking custom probiotics. Further, the UVA scientists were able to use their discovery to prevent the development of autism-like neurodevelopmental disorders in lab mice. They found they could halt the development of such disorders by blocking a particular inflammatory molecule produced by the immune system. Targeting this molecule, interleukin-17a, offers another potential avenue for preventing autism in people, the researchers say. They caution, however, that this approach would be much more complex because of the risk of side effects. "We determined that the microbiome is a key contributor in determining susceptibility [to autism-like disorders], so it suggests that you could target either the maternal microbiome or this inflammatory molecule, IL-17a," said lead researcher John Lukens, Ph.D., of UVA's Department of Neuroscience. "You could also use this [IL-17a] as a biomarker for early diagnosis."_

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You’re looking at the centre of our galactic home, the Milky Way, as imaged by 64 radio telescopes in the South African wilderness.

Scientists released this image to inaugurate the completed MeerKAT radio telescope. But these scopes form part of an even more ambitious project: The Square Kilometre Array, a joint effort to build the world’s largest telescope, spanning the continents of Africa and Australia.

This image shows filaments of particles, structures that seem to exist in alignment with the galaxy’s central black hole.

It’s unclear what causes these filaments. Maybe they are particles ejected by the spinning black hole; maybe they are hypothesised “cosmic strings”; and maybe they’re not unique, and there are other, similar structures waiting to be found, according to a 2017 release from Harvard-Smithsonian Center for Astrophysics.

“This image from MeerKAT is awesome to me because the fine filaments seen in the radio image are excellent tracers of the galactic magnetic field, something we don’t get to see in most optical and infrared data,” Erin Ryan, principal investigator at the SETI Institute, told Gizmodo.

Read more:

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18 Things to Do After Installing #Linux Mint 19 Tara

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From David Grinspoon:

For the future of SETI, the practical questions are, regrettably, as vexing as the intellectual ones. Few would deny how far-reaching success would be, but how do you maintain funding and scientific interest in a field where the payoff in any given year (or even decade) is so uncertain?

Not long ago, many deemed exobiology, along with SETI, as a fringe field, which “serious” researchers must keep at arm’s length. In the 1990s, anti-intellectual budget cutters in Congress discontinued all federal government support for SETI. In 1998, attitudes changed. This came about largely due to the discovery of possible microfossils in a meteorite from Mars and the subsequent flurry of scientific and public excitement. It turned out to be a false alarm, but exobiology was rechristened as “astrobiology” and suddenly became acceptable, well-funded, and even thought central to NASA’s mission.

In terms of government backing, however, SETI remains out in the cold. Maybe it needs its own highly credible false alarm! In the meantime, how do SETI researchers, year in and year out, remain engaged and positive?

Read more:

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Galaxy S9 and Galaxy S9 Plus getting July security patch with important improvements #GalaxyS9 #GalaxyS9Plus #Samsung

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Zooming in Globular Star Cluster NGC 6388
This sequence starts with a wide view of the Milky Way and zooms in on the globular star cluster NGC 6388 in the constellation of Scorpius (The Scorpion). The final images are first from MUSE on the European Southern Observatory's Very Large Telescope in Wide Field Mode and then the last, very sharp, image shows part of the cluster using the MUSE Narrow Field Mode with adaptive optics turned on.

Credit: ESO/S. Kammann (LJMU)/ N. Risinger (
Music: Astral Electronic
Duration: 55 seconds
Release Date: July 18, 2018

+European Southern Observatory (ESO)

#ESO #Astronomy #Space #Science #Globular #Star #Cluster #NGC6388 #Scorpius #Cosmos #Universe #VLT #Telescope #AdaptiveOptics #LaserGuideStar #MUSE #GALACSI #Technology #Paranal #Observatory #Chile #SouthAmerica #Europe #STEM #Education #4K #UHD #HD #Video
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