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After Florida massacre, pockets of NRA country weigh gun law reform: Vermont, a mostly rural New England state with a passion for hunting, has a reputation as a pro-gun stronghold, but the rising specter of school gun violence has shaken that longstanding political tradition. The post After Florida massacre, pockets of NRA country weigh gun law reform appeared first on Politicus USA.

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Samsung might be in trouble.

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Loyola beats Nevada 69-68 in another thriller, heads to its first Elite 8 since 1963

Even Sister Jean’s bracket originally had Loyola bowing out in the Sweet 16.

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A chaep phone with a display like that, would be great.

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Did Scholz’s star invade the Oort Cloud? - Artist’s concept of a the red dwarf star known as Scholz’s star, a binary system formed by a small red dwarf, with about 9% of the mass of our sun, around which a much less bright and smaller brown dwarf orbits. According to astronomers, our ancestors saw the faint reddish light of this passing star system in the nights of prehistory. Image via Eric. Astronomers announced new evidence on March 20, 2018, that the passage of Scholz´s star 70,000 year...

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"Although this video isn't the full picture, it strongly suggests a failure by Uber's automated driving system."

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The Worst Government Possible, on Purpose -via Flynx

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A few days ago, I ranted some on Twitter about computer science, ethics, and "atomic bomb moments" — the moments that make entire fields suddenly have to come to terms with their ethical consequences. Today, I'm following up some more on that.

(Original Twitter rant:

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Everyday habits can make a big difference in your ability to live a healthy lifestyle. Here are the 19 worst habits for your heart, and how to avoid them.

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"A 2-billion-year-old chunk of sea salt provides new evidence for the transformation of Earth's atmosphere into an oxygenated environment capable of supporting life as we know it.

The study by an international team of institutions including Princeton University found that the rise in oxygen that occurred about 2.3 billion years ago, known as the Great Oxidation Event, was much more substantial than previously indicated.

"Instead of a trickle, it was more like a firehose," said Clara Blättler, a postdoctoral research fellow in the Department of Geosciences at Princeton and first author on the study, which was published online by the journal Science on Thursday, March 22. "It was a major change in the production of oxygen.""

Read more at:

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Final auditions for the 2018 New England Patriots Cheerleading squad will take place on Saturday, March 24, in the Premiere Ballroom inside the Fox Tower at Foxwoods Resort Casino ! You don't want to miss this! Comment below on which finalist you will be cheering on! #NEPCFinalsAtFoxwoods

(Credit: New England Patriots Cheerleaders)

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Shallow mindedness
“People will rather pass by the weak, the lame, the beggars, the orphans, the tormented, the widows and take their large offerings to church, to the man of God who already has a mansion and jets , what a shallow mindedness.”
― Sunday Adelaja, Create Your Own Net Worth

#pakistan #blackandwhite #blackandwhitephotography #monochrome #monochromephotography    #street #streetphotography
+Street Photography Saturday curated by +Sunny Wu
#hqspStreetDoc for +HQSP Street & Documentary
#hqspmonochrome for +HQSP Monochrome
+BTP Editors' Choice (Top Photo page)
+BTP Street PRO

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OnePlus will not only look like iPhone, but the company is taking inspiration from Apple's pricing as well.

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Do you think this was intentional 1) in response to various recent tragic events, or 2) due to certain marketing restrictions in particular countries internationally?

#StarWars #Solo #BlastersDontKill

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Leaving Facebook would be like ending a long marriage and it isn't any simple

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Interesting. An experiment to determine how flowing molten metal can generate a magnetic field. "Flows of molten metal can generate magnetic fields. This so-called dynamo effect creates cosmic magnetic fields, like those found on planets, moons and even asteroids. Over the coming years, a globally unique experiment, in which a steel drum containing several tons of liquid sodium rotates around two axes, is intended to demonstrate this effect. It will be carried out in the new DRESDYN facility at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR). A recently published study in the scientific journal "Physical Review Letters" confirms the experiment's chances of success.
"Our experiment at the new DRESDYN facility is intended to demonstrate that precession, as a natural driver of flow, is sufficient to create a magnetic field," says André Giesecke, lead author of the study. In his simulations and during accompanying water experiments – the mock-up was six times smaller than the large dynamo – scientists examined the structure of precession-driven flow. "To our surprise, we observed a symmetrical double roll structure in a specific range of the precession rate, which should provide a dynamo effect at a magnetic Reynolds number of 430," says the physicist.

The center of the Earth consists of a solid core surrounded by a layer of molten iron. "The molten metal induces an electric current, which in turn generates a magnetic field," explains Giesecke. The common belief is that buoyancy-driven convection, together with Earth's rotation, is responsible for this geodynamo. However, the role played by precession in the formation of Earth's magnetic field is still completely unclear. The Earth's rotational axis is tilted by 23.5 degrees from its orbital plane. The rotational axis changes position over a period of approximately 26,000 years. This precessing motion through space is thought to be one of the possible sources of energy for the geodynamo. Millions of years ago, the Moon also had a powerful magnetic field, as indicated by rock samples from the Apollo missions. According to experts, precession could have been the main cause of this."

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Source: NASA/Goddard Space Flight Centre
On the outskirts of our galaxy, a cosmic tug-of-war is unfolding—and only NASA’s Hubble Space Telescope can see who’s winning.

The players are two dwarf galaxies, the Large Magellanic Cloud and the Small Magellanic Cloud, both of which orbit our own Milky Way Galaxy. But as they go around the Milky Way, they are also orbiting each other. Each one tugs at the other, and one of them has pulled out a huge cloud of gas from its companion.

Called the Leading Arm, this arching collection of gas connects the Magellanic Clouds to the Milky Way. Roughly half the size of our galaxy, this structure is thought to be about 1 or 2 billion years old. Its name comes from the fact that it’s leading the motion of the Magellanic Clouds.

The enormous concentration of gas is being devoured by the Milky Way and feeding new star birth in our galaxy. But which dwarf galaxy is doing the pulling, and whose gas is now being feasted upon? After years of debate, scientists now have the answer to this “whodunit” mystery.

“There’s been a question: Did the gas come from the Large Magellanic Cloud or the Small Magellanic Cloud? At first glance, it looks like it tracks back to the Large Magellanic Cloud,” explained lead researcher Andrew Fox of the Space Telescope Science Institute in Baltimore, Maryland. “But we’ve approached that question differently, by asking: What is the Leading Arm made of? Does it have the composition of the Large Magellanic Cloud or the composition of the Small Magellanic Cloud?”

Fox’s research is a follow-up to his 2013 work, which focused on a trailing feature behind the Large and Small Magellanic Clouds. This gas in this ribbon-like structure, called the Magellanic Stream, was found to come from both dwarf galaxies. Now Fox wondered about its counterpart, the Leading Arm. Unlike the trailing Magellanic Stream, this tattered and shredded “arm” has already reached the Milky Way and survived its journey to the galactic disk.

The Leading Arm is a real-time example of gas accretion, the process of gas falling onto galaxies. This is very difficult to see in galaxies outside the Milky Way, because they are too far away and too faint. “As these two galaxies are in our backyard, we essentially have a front-row seat to view the action,” said collaborator Kat Barger at Texas Christian University.

In a new kind of forensics, Fox and his team used Hubble’s ultraviolet vision to chemically analyze the gas in the Leading Arm. They observed the light from seven quasars, the bright cores of active galaxies that reside billions of light-years beyond this gas cloud. Using Hubble’s Cosmic Origins Spectrograph, the scientists measured how this light filters through the cloud.

In particular, they looked for the absorption of ultraviolet light by oxygen and sulfur in the cloud. These are good gauges of how many heavier elements reside in the gas. The team then compared Hubble’s measurements to hydrogen measurements made by the National Science Foundation’s Robert C. Byrd Green Bank Telescope at the Green Bank Observatory in West Virginia, as well as several other radio telescopes.

“With the combination of Hubble and Green Bank Telescope observations, we can measure the composition and velocity of the gas to determine which dwarf galaxy is the culprit,” explained Barger.

After much analysis, the team finally had conclusive chemical “fingerprints” to match the origin of the Leading Arm’s gas. “We’ve found that the gas matches the Small Magellanic Cloud,” said Fox. “That indicates the Large Magellanic Cloud is winning the tug-of-war, because it has pulled so much gas out of its smaller neighbour.”

This answer was possible only because of Hubble’s unique ultraviolet capability. Because of the filtering effects of Earth’s atmosphere, ultraviolet light cannot be studied from the ground. “Hubble is the only game in town,” explained Fox. “All the lines of interest, including oxygen and sulphur, are in the ultraviolet. So if you work in the optical and infrared, you can’t see them.”

Gas from the Leading Arm is now crossing the disk of our galaxy. As it crosses, it interacts with the Milky Way’s own gas, becoming shredded and fragmented.

This is an important case study of how gas gets into galaxies and fuels star birth. Astronomers use simulations and try to understand the inflow of gas in other galaxies. But here, the gas is being caught red-handed as it moves across the Milky Way’s disk. Sometime in the future, planets and solar systems in our galaxy may be born out of material that used to be part of the Small Magellanic Cloud.

Journal Reference:
Andrew J. Fox, Kathleen A. Barger, Bart P. Wakker, Philipp Richter, Jacqueline Antwi-Danso, Dana I. Casetti-Dinescu, J. Christopher Howk, Nicolas Lehner, Elena D’Onghia, Paul A. Crowther, Felix J. Lockman. Chemical Abundances in the Leading Arm of the Magellanic Stream. The Astrophysical Journal, 2018; 854 (2): 142

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Google+ Topics

For those who love to getting immersed in a good book or publication, check
out the Writing and Publishing topic!

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Every region in the world is staying away from the U.S. except Canada — there's been a 4.8 per cent increase in visits.

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