March 13, 2013

Solo a cappella with Special Guest Ferenc Snetberger

3,268 Posts to “March 13, 2013”

  1. mp3 juice says:

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  2. Kennethcon says:

    Astronomers have observed a planet that in some ways behaves more like a star — including a massive growth spurt unlike anything witnessed before in a free-floating planet. сколько стоит построить цокольный этаж The rogue planet which does not orbit any star is called Cha 1107-7626 and is outside of our solar system 620 light-years from Earth in the Chamaeleon constellation. A single light-year or the distance light travels in one year is equal to 5.88 trillion miles 9.46 trillion kilometers. The planet has a mass five to 10 times that of Jupiter the largest planet in our solar system. And it’s getting bigger every second according to new research published Thursday in The Astrophysical Journal Letters. Estimated to be 1 million to 2 million years old Cha 1107-7626 is still forming said study coauthor Aleks Scholz an astronomer at the University of St. Andrews in Scotland. It may sound old but astronomically speaking the planet is in its infancy. By contrast the planets in our solar system are about 4.5 billion years old. https://ms-stroy.ru/stroitelstvo_monolitnyh_domov/ монолитный РґРѕРј РёР· бетона Cha 1107-7626 is surrounded by a disk of gas and dust which constantly falls onto the planet and accumulates during a process that astronomers call accretion. But the rate at which the young planet is growing varies the study authors said. Observations with the European Southern Observatory’s Very Large Telescope in Chile’s Atacama Desert along with follow-up views conducted by the James Webb Space Telescope showed that the planet is adding material about eight times faster than a few months earlier and gobbling up gas and dust at a record rate of 6.6 billion tons 6 billion metric tons per second. Related article The Earth-size exoplanet TRAPPIST-1 e depicted at the lower right is silhouetted as it passes in front of its flaring host star in this artist’s concept of the TRAPPIST-1 system. Earth-like exoplanet could be habitable and astronomers may know soon The unusual burst of activity is the strongest growth rate ever recorded for a planet of any kind said lead study author Victor Almendros-Abad an astronomer at the Palermo Astronomical Observatory of the National Institute for Astrophysics in Italy and is shedding light on the tumultuous formation and evolution of planets. “We’ve caught this newborn rogue planet in the act of gobbling up stuff at a furious pace” said senior coauthor Ray Jayawardhana provost and professor of physics and astronomy at Johns Hopkins University in a statement. “Monitoring its behavior over the past few months with two of the most powerful telescopes on the ground and in space we have captured a rare glimpse into the baby phase of isolated objects not much heftier than Jupiter. Their infancy appears to be much more tumultuous than we had realized.”

  3. JasonSig says:

    Astronomers first discovered Cha 1107-7626 in 2008 and since then they have observed it with different telescopes to learn more about how the infant planet evolves as well as to study its surroundings. трал спецтехника The research team observed the planet with Webb in 2024 making a clear detection of the surrounding disk. Next the researchers studied it using the X-shooter spectrograph on the Very Large Telescope which can capture different wavelengths of light emitted by an object ranging from ultraviolet to near-infrared. The observations detected a puzzling event as the planet transitioned from a steady accretion rate in April and May to a burst of growth between June and August. https://tlk-triga.ru/gruzoperevozki_po_moskve/ перевозка крупногабаритных РіСЂСѓР·РѕРІ РїРѕ СЂРѕСЃСЃРёРё “I fully expected that this is a short-term event because those are much more common” Scholz said. “When the burst kept going through July and August I was absolutely stunned.” Follow-up observations made using the Webb telescope also showed that the chemistry of the disk had changed. Water vapor present during the growth spurt wasn’t in the disk before. Webb is the only telescope capable of capturing such detailed changes in the environment for such a faint object Scholz said. Prior to this research astronomers had only ever seen the chemistry of a disk change around a star but not around a planet. Comparing observations from before and during the event showed that magnetic activity seems to be the main driver behind how much gas and dust is falling on the planet — a phenomenon typically associated with stars as they grow. But the new observations suggest that objects with much less mass than stars — the rogue world is less than 1 the mass of our sun — can have strong magnetic fields capable of driving the growth of the object according to the study authors. An infrared image taken with the Visible and Infrared Telescope for Astronomy shows Cha 1107-7626 a dot located in the center. An infrared image taken with the Visible and Infrared Telescope for Astronomy shows Cha 1107-7626 a dot located in the center. ESO/Meingast et al. A planet that acts like a star The origin of rogue planets remains murky. It’s possible they are planets that are kicked out of orbit around stars due to the gravitational influence of other objects. Or perhaps they are the lowest-mass objects that happen to form like stars. For Cha 1107-7626 astronomers said they think it’s the latter. “This object most likely formed in a way similar to stars — from the collapse and fragmentation of a molecular cloud” Scholz said. A molecular cloud is a massive cold cloud of gas and dust that can stretch for hundreds of light-years according to NASA. “We’re struck by quite how much the infancy of free-floating planetary-mass objects resembles that of stars like the Sun” Jayawardhana said in a statement. “Our new findings underscore that similarity and imply that some objects comparable to giant planets form the way stars do from contracting clouds of gas and dust accompanied by disks of their own and they go through growth episodes just like newborn stars.”

  4. Edwardjah says:

    The scale of these recent attacks means Ukraine needs any help it can get to minimize the impacts – and volunteers are playing an increasingly important role in the defensive mix. kra44 at Civilians are forming units tasked with shooting down smaller drones with machine guns or most recently specially developed interceptor drones. kra45 The chief of staff of one of Kyiv’s volunteer formation legions Andriy whose call-sign is Stolyar said his unit is composed of people from all walks of life – from construction workers to businessmen to poets. He told CNN the training for his legion lasts for about six weeks and includes basic knowledge simulator practice and topography lessons. Andriy asked for his last name not to be published for security reasons. “A person must understand how to operate an aircraft. Drones are becoming increasingly complex – this is aviation and it requires constant attention knowledge and skills” he said. kra42 сс https://at-kra45.cc

  5. Clydephinc says:

    The directives largely roll back efforts made over the last decade attempting to eradicate toxic culture in the military both to decrease harmful behaviors like harassment but also to meet practical needs of getting people in uniform and keeping them there longer as the military branches faced years of struggles filling the ranks. kra49 Many major reforms were described by the officials who implemented them as driven by that need; when former Defense Secretary Ash Carter opened up combat roles to women in 2015 he said the military “cannot afford to cut ourselves off from half the country’s talents and skills” if it wanted to succeed in national defense. kra41 at And while the military had made changes in recent years in an attempt to lessen instances of harassment discrimination or toxic leadership by creating reporting mechanisms so that troops would come forward Hegseth said those efforts went too far and were undercutting commanders. “The definition of ‘toxic’ has been turned upside down and we’re correcting that” Hegseth vowed on Tuesday adding that the Defense Department would be undertaking a review of words like “hazing” and “bullying” which he said had been “weaponized.” kra41 https://ckmosstroy.ru/kra43-cc

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