FOUR MEN TO APPEAR IN COURT TODAY FOLLOWING GARDA CHASE

first_imgThe car involved in the incident in Castlefin yesterday.Four men are to appear in court today following yesterday’s chase in which a Garda car was badly damaged.The men, who are understood to be from Northern Ireland, will appear at Buncrana District Court. The men were arrested yesterday afternoon near Castlefin following a Garda operation.It followed an operation in which Gardai put out appeals on the movements of a silver Mercedes car.The car was observed and a pursuit took place.The men were arrested in a follow-up operation which also involved the co-operation of he local community.The men were taken to Letterkenny and Milford Garda stations for questioning overnight.They will appear before Judge Paul Kelly today.FOUR MEN TO APPEAR IN COURT TODAY FOLLOWING GARDA CHASE was last modified: July 10th, 2014 by StephenShare this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Skype (Opens in new window)Click to print (Opens in new window) Tags:buncrana courtcastlefindonegalGardailast_img read more

Van Allen Belts Protect Earth from Solar Wind

first_imgGeophysicists are still puzzling over how the earth’s magnetic field and Van Allen radiation belts protect the surface from deadly particles in the solar wind.The Van Allen belts are lobes of high-energy particles above the atmosphere, formed as a consequence of the geomagnetic field. First discovered in 1958 by Dr James Van Allen of the University of Iowa, using instruments aboard the Explorer satellites designed by JPL spacecraft pioneer Dr. Henry Richter, these belts have long puzzled scientists. A pair of spacecraft called the Van Allen Probes have been gathering data about the belts since 2012. NASA’s Magnetospheric Multiscale Mission (MMS) also gathered data since 2015. Elizabeth Howell provides this overview of the Van Allen Belts on Space.com. She says,On the 60th anniversary of Explorer 1, NASA said that studies of the Van Allen belts are even more important today. “Our current technology is ever more susceptible to these accelerated particles because even a single hit from a particle can upset our ever smaller instruments and electronics,” said David Sibeck, Van Allen Probes mission scientist at NASA’s Goddard Space Flight Center in Maryland, in a 2018 statement. “As technology advances, it’s actually becoming even more pressing to understand and predict our space environment.“Here are additional news items about what these structures do for us.Shock at the BowHow Solar Wind Drops from Gale to Gentle Breeze as It Hits Earth’s Magnetic Field (University of Maryland). Animations of the solar wind often show particles streaming out from the sun directly at the earth, but our planet actually plows through the field along its orbital path, increasing the speed at which the particles impinge on our home were it not for planetary protection provided by the magnetic field.  The press release explains,Bow shock (blue) with Van Allen Belts inside (pink). Credit: NASA. Click image for details.As Earth orbits the sun at supersonic speed, it cuts a path through the solar wind. This fast stream of charged particles, or plasma, launched from the sun’s outer layers would bombard Earth’s atmosphere if not for the protection of Earth’s magnetic field.Just as the nose of a motorboat creates a bow-shaped wave as it pushes through the water, Earth creates a similar effect—called a bow shock—as it pushes through the solar wind. A new University of Maryland-led study describes the first observations of the process of electron heating that happens in Earth’s bow shock.The paper is published in Physical Review Letters. They found bad news before they understood the good news:The researchers found that when the electrons in the solar wind encounter the bow shock, they momentarily accelerate to such a high speed that the electron stream becomes unstable and breaks down. This breakdown process robs the electrons of their high speed and converts the energy to heat….“If you were to stand on a mountaintop, you might get knocked over by a fast wind,” explained Li-Jen Chen, lead author of the study and an associate research scientist in the UMD department of astronomy. “Fortunately, as the solar wind crashes into Earth’s magnetic field, the bow shock protects us by slowing down this wind and changing it to a nice, warm breeze. We now have a better idea how this happens.”It’s not friction, therefore, that slows down the killer electrons; it’s breakdown of the electron stream due to instability. This is a new discovery from spacecraft measurements. “The study of electron heating is important not just for understanding how the bow shock protects Earth, but potentially for satellites, space travel and maybe exploring other planets in the future,” says Li-Jen Chen of the University of Maryland, lead author of the study. Her comment raises the question whether exoplanets could be habitable without such mechanisms. Richter’s book Spacecraft Earth raises the question whether a protective magnetic field could survive for millions of years.Earth’s Magnetic Field is A Ruthless, Solar-Wind-Shredding Machine (Space.com). Brandon Specktor notes that the breakdown of the electron stream occurs in just 90 milliseconds – nine one-hundredths of a second. If it weren’t for this newly-discovered process, he says, earth would be fried:Earth is constantly being bombarded by a hot, soupy plasma of protons, electrons and ions loosed by the sun in the form of solar wind. These winds blow all day and in all directions, blasting out of our nearest star at speeds of up to 500 miles per second (800 kilometers per second) and temperatures of up to 2.9 million degrees Fahrenheit (1.6 million degrees Celsius), according to NASA. You’d think that would be more than enough to bake our planet into a giant, orbiting lump of ash, but Earth and its atmosphere remain largely unscathed thanks to the planet’s strong magnetic field.Scientists are still trying to understand these processes, the article ends. “But for now, enjoy the gentle winds of summer — and know, somewhere out there, that Earth’s magnetic field is violently ripping billions of solar electrons to bits on your behalf.”Van Allen Radiation Belts within the magnetic field (NASA).Chirping Birds and Swing PushersWhat Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era (Geophysical Research Letters). With an animation of electrons under the influence of the magnetic field, a press release from NASA-Goddard explains how electrons become excited within the belts.Encircling Earth are two enormous rings — called the Van Allen radiation belts — of highly energized ions and electrons. Various processes can accelerate these particles to relativistic speeds, which endanger spacecraft unlucky enough to enter these giant bands of damaging radiation. Scientists had previously identified certain factors that might cause particles in the belts to become highly energized, but they had not known which cause dominates.Now, with new research from NASA’s Van Allen Probes and Time History of Events and Macroscale Interactions during Substorms — THEMIS — missions, published in Geophysical Research Letters, the verdict is in. The main culprit is a process known as local acceleration, caused by electromagnetic waves called chorus waves. Named after their characteristic rising tones, reminiscent of chirping birds, chorus waves speed up the particles pushing them along like a steady hand repeatedly pushing a swing. This process wasn’t a widely accepted theory before the Van Allen Probes mission.Additional InformationRadial Transport of Higher‐Energy Oxygen Ions Into the Deep Inner Magnetosphere Observed by Van Allen Probes (Geophysical Research Letters). “We suggest that the higher‐energy oxygen ions are transported to the inner magnetosphere selectively by the combination of two resonances: drift resonance and drift‐bounce resonance.”Explaining the apparent impenetrable barrier to ultra-relativistic electrons in the outer Van Allen belt (Nature Communications).Recent observations have shown the existence of an apparent impenetrable barrier at the inner edge of the ultra-relativistic outer electron radiation belt. This apparent impenetrable barrier has not been explained…. Contrary to earlier claims, sharp boundaries in fast loss processes at the barrier are not needed. Moreover, we show that penetration to the barrier can occur on the timescale of days rather than years as previously reported, with the Earthward extent of the belt being limited by the finite duration of strong solar wind driving, which can encompass only a single geomagnetic storm.Update 6/12/18: Astrobiology Magazine reports that European Space Agency (ESA) scientists are seeking to understand how the solar wind impacts rocks on the moon and Mercury. Most solar wind particles consist of hydrogen ions (protons) and helium ions, but some heavier atoms are in the mix, too. These particles can impact surface rocks at speeds of 400 to 800 km per second, shattering the rock and dislodging atoms in a process called sputtering. The erosional damage does not affect Earth:The planets and moons of our solar system are continuously being bombarded by particles hurled away from the sun. On Earth this has hardly any effect, apart from the fascinating northern lights, because the dense atmosphere and the magnetic field of the Earth protect us from these solar wind particles. But on the Moon or on Mercury things are different: There, the uppermost layer of rock is gradually eroded by the impact of sun particles.Constant bombardment and liberation of particles by sputtering creates a thin “exosphere” around the moon and Mercury that scientists can study remotely for clues about surface composition. “The effects of solar wind bombardment are in some cases much more drastic than previously thought,” the article explains, because heavier elements not only have more mass but can carry multiple levels of charge (i.e., they lack several electrons). Their impact on a surface can atomize rocks in a flash of kinetic and electrical energy.The article notes that “the uppermost layer of rock is gradually eroded by the impact of sun particles,” but did not mention what effects could be expected over millions or billions of years. The ESA’s first mission to Mercury, called BepiColombo is scheduled for launch in October 2018.We need to keep in mind these physical mechanisms as we “enjoy the gentle winds of summer,” realizing that multiple laws of physics and chemistry appear to have ‘conspired’ to work together for our benefit. Secular scientists would have us believe that there are so many stars and planets, life must be commonplace. They have a very permissive view of what chance can accomplish, both biologically and physically. In Spacecraft Earth, Dr. Richter identifies some 15 factors that work together to make our planet habitable. Using reasonable estimates of probability, he estimates that less than one planet in the universe would have all 15 factors! Of course, we know there is at least one. But is it reasonable to assume that habitable planets are a dime a dozen? Think how uncanny it is that physical processes that have nothing to do with life, like bow shocks and chorus waves, would play a role in protecting life far below, on the surface of a planet out of the range of their operations. The same argument could be made for physical processes under the earth’s surface, such as mineral transport and plate tectonics, and for physical processes within the biosphere, such as ocean currents and atmospheric circulation patterns. Additionally, there are astronomical considerations that make earth habitable, such as having the right kind of star, being the right distance from it, and having an axial tilt that gives rise to seassons. This doesn’t look like a haphazard arrangement of independent mindless processes. It supports what the Lord revealed in Isaiah 45:18For thus says the Lord, who created the heavens (he is God!), who formed the earth and made it (he established it; he did not create it empty, he formed it to be inhabited!): “I am the Lord, and there is no other.”(Visited 1,125 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

A Tale of Two Bubbles: Why Cryptocurrency Isn’t the Next Dot-Com

first_imgWhat Nobody Teaches You About Getting Your Star… Economic bubbles aren’t new. From the tulip bubble of the 1630s, to the dot-com boom of the late 1990s, to the big-tech mania we’re seeing today, overvaluations happen — but not all bubbles pose the same risks or offer the same rewards. Every few years, it seems we’re warned of another looming “bubble” about to burst. Most recently, pundits like Warren Buffett and George Soros have compared the rise of cryptocurrency to the dot-com bubble, wondering aloud if we’re on the precipice of a big bust.The similarities are fairly obvious. Cryptocurrency startups, much like the dot-coms, are experiencing an influx of capital that’s boosting the valuations of solid, innovative companies along with their relatively worthless counterparts — Dogecoin comes to mind as a cautionary tale. But while the dot-com boom produced plenty of duds, let’s not forget that it also gave birth to Amazon, Google, and eBay. Similarly, there are resilient, well-managed cryptocurrency companies that will be able to withstand drastic market fluctuations.Sure, the current state of cryptocurrency bears some resemblance to the ’90s tech boom, but there are important differences to consider. Understanding the following factors can help you to mitigate long-term damage as the market naturally begins to self-correct.1. Say hello to regulation: Cryptocurrencies, unlike the early dot-coms, are shaking up the U.S. monetary system and offering an alternative to worldwide fiat currency. Early internet technology was groundbreaking, but decentralized currency is truly revolutionary. Most governments don’t quite understand what’s going on, much less how to deal with it.Recent fluctuations in the price of bitcoin and other cryptocurrencies were the direct result of new regulations announced by the South Korean government, and other regulatory agencies across the world are guaranteed to make similar moves. They will eventually make examples of nefarious players, helping to weed out more “shadowy” companies from the industry.Be ready to work with government agencies and adapt to new regulations when they inevitably arrive. Private companies that behave like public companies are more likely to come out on top. In that same vein, be sure you’re not taking a ton of money from unaccredited investors — or investing it in secretive ways. The industry may not yet be fully regulated, but you need to start running your company as if it were.2. Just say no…to casual investing: Yes, some venture capitalists in the dot-com era would throw money at any startup that showed signs of life, but the risks seem greater for those entering the crypto space with insufficient knowledge. More than 1,000 cryptocurrencies are active right now, and quite a few are hoping to ride the wave without doing their homework first.Perceived bubbles are funny: They can propel even the worst companies to the top of the stock charts. You need to understand how to capitalize on the bubble — raising as much capital as you can (without destroying the structure of your company) and then managing that cash (knowing it won’t always be there).Be able to effectively communicate your long-term value to shareholders. The blockchain is a brilliant invention, with applications we’re just beginning to discover, ranging from the financial space to healthcare, cybersecurity, retail, and beyond. It will transform the world as we know it, making a handful of companies and their investors extremely wealthy in the process. To find investors who will stay with you for the long haul, showcase realistic, revenue-generating applications of this technology and prove it can outlive the hype.3. Abandon geographical boundaries: While the dot-com bust had some ripple effects on the world economy, the rise and fall of Silicon Valley was far more localized. Cryptocurrency is traded across the world, and countries are taking vastly different approaches in their adoption and regulation of it. South Korea only recently started exploring regulation, for instance, while Sweden has been offering derivatives in Bitcoin since 2015.The international scope of this marketplace presents both unique challenges and an array of opportunities. Vitalik Buterin, founder of Ethereum, argues that blockchain offers particular value in parts of the world where people can’t yet trust their institutions — places such as Africa, India, and Eastern Europe. Blockchain, he argues, resolves the issue of market manipulation from the top-down.All that’s to say: You must invest in a capable management team that can see the big picture. Nobody will predict every little twist and turn in the market, but the better your understanding of how your company could succeed on an international scale, the higher your chances of success.When looking for dynamic and adaptable management teams, focus on candidates with a track record of success — those who can navigate an ever-changing technology landscape while incorporating traditional financial market tactics. At Neptune Dash we did just that, incorporating a well-versed technology team with adept financial leaders with proven success on public markets.Finding footing on shaky groundThe ’90s tech boom was followed by a solid bust. In November 2000, an index of 280 internet stocks was down by $1.7 trillion from its 52-week high. Contrast that with recent fluctuations in digital coins, and the difference is obvious. Its value may rise and fall, but anyone who bought Bitcoin a year ago has earned more than a sixfold return on investment, for example.The highs may be higher and the lows may be lower than in other industries, but the underlying technology is here to stay. Despite the common misconception, not all bubbles are created equal. An overvalued startup that does nothing for the world is destined to crash, but just as the Googles of past eras have survived, so will the very best cryptocurrency companies. How OKR’s Completely Transformed Our Culture Cale Moodie is CEO and director of Neptune Dash, a cryptocurrency company that constructs and operates masternodes of Dash, a digital currency built on the blockchain. China and America want the AI Prize Title: Who … Blockchain – Impending Revolution in Glob… Cale Moodie Tags:#Blockchain#Cryptocurrency#startups Related Posts last_img read more

Parties gear up for post-poll scenarios

first_imgWith polling for Lok Sabha 2019 ending on Sunday, political parties in Maharashtra have called all their MLAs, sitting MPs and candidates for meetings on Monday and Tuesday to discuss the possible scenarios that may emerge afterresults are announced on May 23. The Bharatiya Janata Party’s (BJP) core committee will meet on Monday, while all its MLAs, MPs and candidates in Maharashtra will meet in Mumbai the following day. Revenue Minister Chandrakant Patil said, “This is a regular meeting. We have called the elected representatives on Tuesday. We are confident of a majority; there is no question of us getting panicky.” He reiterated that BJP-Shiv Sena combine will win up to 45 of the 48 seats in Maharashtra. Sena leaders, on the other hand, have been asked to remain in their constituencies. Sena chief Uddhav Thackeray is currently on a holiday in Europe and is likely to return within a day or two. Congress meetingNationalist Congress Party (NCP) president Sharad Pawar will in Delhi from Tuesday and will be joined by senior party leaders like Praful Patel. According to party sources, Mr. Pawar will remain in Delhi till there is some clarity on who will form the next government. Meanwhile, the Congress will hold a meeting of all its MLAs and leaders on Monday, chaired by its Maharashtra in-charge Mallikarjun Kharge. State unit Congress president Ashok Chavan said the party will discuss a new group leader in the Assembly, since Radhakrishna Vikhe-Patil has resigned from the post and as Leader of Opposition. The Congress will also discuss reports from its candidates about local leaders who worked against the official party candidate. Five Congress MLAs — Mr. Vikhe-Patil, Jaikumar Gore, Nitesh Rane, Abdul Sattar and Kalidas Kolambkar — are under the scanner for anti-party activities during elections.last_img read more