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Articles Posted by SunkenCiv

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  • Astronomy Picture of the Day -- Aurorae on Jupiter

    07/10/2016 10:19:57 PM PDT · by SunkenCiv · 16 replies
    NASA ^ | Monday, July 11, 2016 | (see photo credit)
    Explanation: Jupiter has aurorae. Like Earth, the magnetic field of the gas giant funnels charged particles released from the Sun onto the poles. As these particles strike the atmosphere, electrons are temporarily knocked away from existing gas molecules. Electric force attracts these electrons back. As the electrons recombine to remake neutral molecules, auroral light is emitted. In the featured recently released composite image by the Hubble Space Telescope taken in ultraviolet light, the aurorae appear as annular sheets around the pole. Unlike Earth's aurorae, Jupiter's aurorae include several bright streaks and dots. Jupiter's Great Red Spot is visible on the...
  • Israel Find May Help Solve Mystery Of Biblical Philistines

    07/10/2016 10:06:41 PM PDT · by SunkenCiv · 29 replies
    Phys dot org ^ | Sunday, July 10, 2016 | Yaniv Zohar
    The Philistines left behind plenty of pottery. But part of the mystery surrounding the ancient people was that very little biological trace of them had been found -- until 2013. That's when archaeologists excavating the site of the biblical city of Ashkelon found what they say is the first Philistine cemetery ever discovered. They say they have uncovered the remains of more than 200 people there. The discovery was finally unveiled Sunday at the close of a 30-year excavation by the Leon Levy Expedition, a team of archaeologists from Harvard University, Boston College, Wheaton College in Illinois and Troy University...
  • Astronomy Picture of the Day -- Moon Meets Jupiter

    07/10/2016 5:36:14 AM PDT · by SunkenCiv · 9 replies
    NASA ^ | Sunday, July 10, 2016 | (see photo credit)
    Explanation: What's that next to the Moon? Jupiter -- and its four largest moons. Skygazers around planet Earth enjoyed the close encounter of planets and Moon in 2012 July 15's predawn skies. And while many saw bright Jupiter next to the slender, waning crescent, Europeans also had the opportunity to watch the ruling gas giant pass behind the lunar disk, occulted by the Moon as it slid through the night. Clouds threaten in this telescopic view from Montecassiano, Italy, but the frame still captures Jupiter after it emerged from the occultation along with all four of its large Galilean moons....
  • Carthage Archaeologists Dig Up Smart Cooling System For Chariot Racers

    07/09/2016 8:36:53 PM PDT · by SunkenCiv · 19 replies
    Haaretz ^ | June 30, 2016 | Philippe Bohstrom
    On the north coast of Africa lie the ruins of a city that came within a hairbreadth of defeating the might of Rome. Now archaeologists digging at the famous Circus of Carthage have revealed a startlingly advanced system to cool down horses and chariots during races... Key to the discovery of the clever cooling system at the Circus of Carthage, the biggest sporting arena outside Rome, was the detection of water resistant mortar... The discovery was made at the spina, the median strip of the circus, around the ends of which the charioteers would turn during races. The spina would...
  • St David link to 6th Century Pembrokeshire burial site

    07/09/2016 8:29:59 PM PDT · by SunkenCiv · 5 replies
    BBC ^ | 1 July 2016 | unattributed
    Skeletons uncovered at a Pembrokeshire burial site may be the remains of contemporaries of the Patron Saint of Wales, archaeologists believe. The discovery was made during the third and final excavation at St Patrick's Chapel at Whitesands Bay, St Davids. It found Christian burial sites dating from the early-6th Century when St David was a bishop. This means a medieval plot found during a previous dig there was not the earliest use of the site. Phil Bennett, cultural heritage manager for the Pembrokeshire Coast National Park Authority, which supported the dig, said: "Without doubt some of the people buried in...
  • Rites of the Scythians

    07/09/2016 3:17:30 PM PDT · by SunkenCiv · 25 replies
    Archaeology ^ | Monday, June 13, 2016 | Andrew Curry
    ...As he and his team began to slice into the mound, located 30 miles east of Stavropol... It took nearly a month of digging to reach the bottom. There, Belinski ran into a layer of thick clay that, at first glance, looked like a natural feature of the landscape, not the result of human activity. He uncovered a stone box, a foot or so deep, containing a few finger and rib bones from a teenager... Nested one inside the other in the box were two gold vessels of unsurpassed workmanship. Beneath these lay three gold armbands, a heavy ring, and...
  • Etruscan Code Uncracked

    07/09/2016 1:51:42 PM PDT · by SunkenCiv · 42 replies
    Archaeology ^ | Monday, June 13, 2016 | Rossella Lorenzi
    An inscribed stone slab unearthed at an Etruscan site in Tuscany is proving to contain one of the most difficult texts to decipher. It was believed that the sixth-century B.C. stela would shed light on the still-mysterious Etruscan language, but so far it remains a puzzle. “To be honest, I’m not yet sure what type of text was incised on the stela,” says Rex Wallace, professor of classics at the University of Massachusetts. Inscribed with vertical dots and at least 70 legible letters, the four-foot-tall and two-foot-wide slab had been buried for more than 2,500 years in the foundations of...
  • Astronomy Picture of the Day -- Noctilucent Clouds Tour France

    07/09/2016 10:05:29 AM PDT · by SunkenCiv · 2 replies
    NASA ^ | Saturday, July 09, 2016 | (see photo credit)
    Explanation: Bright noctilucent or night shining clouds are not familiar sights from northern France. But these electric-blue waves coursed through skies over the small town of Wancourt in Pas-de-Calais on July 6, just before the dawn. From the edge of space, about 80 kilometers above Earth's surface, the icy clouds still reflect sunlight even though the Sun itself is below the horizon as seen from the ground. Usually spotted at high latitudes in summer months the diaphanous apparitions are also known as polar mesospheric clouds. The seasonal clouds are understood to form as water vapor driven into the cold upper...
  • Astronomy Picture of the Day -- The Swirling Core of the Crab Nebula

    07/07/2016 10:04:25 PM PDT · by SunkenCiv · 11 replies
    NASA ^ | Friday, July 08, 2016 | (see photo credit)
    Explanation: At the core of the Crab Nebula lies a city-sized, magnetized neutron star spinning 30 times a second. Known as the Crab Pulsar, it's actually the rightmost of two bright stars, just below a central swirl in this stunning Hubble snapshot of the nebula's core. Some three light-years across, the spectacular picture frames the glowing gas, cavities and swirling filaments bathed in an eerie blue light. The blue glow is visible radiation given off by electrons spiraling in a strong magnetic field at nearly the speed of light. Like a cosmic dynamo the pulsar powers the emission from the...
  • Harappan Workshops Excavated in Northwest India

    07/07/2016 8:14:17 AM PDT · by SunkenCiv · 16 replies
    Archaeology ^ | Wednesday, July 06, 2016 | editors
    A 5,000-year-old industrial production center featuring furnaces, hearths, and mud-brick structures has been found in northwest India between two channels of the Ghaggar River. According to a report in Frontline, the settlement, occupied for more than 1,000 years, lacked the fortification walls, streets at right angles, citadel, and area for traders and craftsmen usually seen in Harappan sites. One of the furnaces, used for smelting gold and copper, had a platform where the smith could sit and blow through an underground tube to the fire pit. Nearby hearths were used to produce gold jewelry and copper fish hooks and spear...
  • Astronomy Picture of the Day -- The Altiplano Night

    07/07/2016 7:14:08 AM PDT · by SunkenCiv · 7 replies
    NASA ^ | Thursday, July 07, 2016 | (see photo credit)
    Explanation: The Milky Way is massively bright on this cold, clear, altiplano night. At 4,500 meters its reflection in a river, a volcanic peak on the distant horizon, is captured in this stitched panorama under naturally dark skies of the northern Chilean highlands near San Pedro de Atacama. Along the Solar System's ecliptic plane, the band of Zodiacal light also stands out, extending above the Milky Way toward the upper left. In the scene from late April, brilliant Mars, Saturn, and Antares form a bright celestial triangle where ecliptic meets the center of the Milky Way. Left of the triangle,...
  • Archaeology suggests no direct link between climate change and early human innovation

    07/06/2016 5:10:19 PM PDT · by SunkenCiv · 6 replies
    Phys dot org ^ | Wednesday, July 6, 2016 | PLoS ONE
    Archaeological sites suggest climate may not have been directly linked to cultural and technological innovations of Middle Stone Age humans in southern Africa... The Middle Stone Age marked a period of dramatic change amongst early humans in southern Africa, and climate change has been postulated as a primary driver for the appearance of technological and cultural innovations such as bone tools, ochre production, and personal ornamentation. While some researchers suggest that climate instability may have directly inspired technological advances, others postulate that environmental stability may have provided a stable setting that allowed for experimentation. However, the disconnection of palaeoenvironmental records...
  • Astronomy Picture of the Day -- Arp 286: Trio in Virgo

    07/06/2016 6:12:48 AM PDT · by SunkenCiv · 4 replies
    NASA ^ | Wednesday, July 06, 2016 | (see photo credit)
    Explanation: A remarkable telescopic composition in yellow and blue, this scene features a trio of interacting galaxies almost 90 million light-years away, toward the constellation Virgo. On the right, two, spiky, foreground Milky Way stars echo the trio galaxy hues, a reminder that stars in our own galaxy are like those in the distant island universes. With sweeping spiral arms and obscuring dust lanes, NGC 5566 is enormous, about 150,000 light-years across. Just above it lies small, blue NGC 5569. Near center, the third galaxy, NGC 5560, is multicolored and apparently stretched and distorted by its interaction with NGC 5566....
  • Astronomy Picture of the Day -- The Colorful Clouds of Rho Ophiuchi

    07/05/2016 3:30:17 AM PDT · by SunkenCiv · 7 replies
    NASA ^ | Tuesday, July 05, 2016 | (see photo credit)
    Explanation: The many spectacular colors of the Rho Ophiuchi (oh'-fee-yu-kee) clouds highlight the many processes that occur there. The blue regions shine primarily by reflected light. Blue light from the star Rho Ophiuchi and nearby stars reflects more efficiently off this portion of the nebula than red light. The Earth's daytime sky appears blue for the same reason. The red and yellow regions shine primarily because of emission from the nebula's atomic and molecular gas. Light from nearby blue stars - more energetic than the bright star Antares - knocks electrons away from the gas, which then shines when the...
  • Astronomy Picture of the Day -- IC 4628: The Prawn Nebula

    07/05/2016 3:26:33 AM PDT · by SunkenCiv · 1 replies
    NASA ^ | Monday, July 04, 2016 | (see photo credit)
    Explanation: South of Antares, in the tail of the nebula-rich constellation Scorpius, lies emission nebula IC 4628. Nearby hot, massive stars, millions of years young, radiate the nebula with invisible ultraviolet light, stripping electrons from atoms. The electrons eventually recombine with the atoms to produce the visible nebular glow, dominated by the red emission of hydrogen. At an estimated distance of 6,000 light-years, the region shown is about 250 light-years across, spanning an area equivalent to four full moons on the sky. The nebula is also cataloged as Gum 56 for Australian astronomer Colin Stanley Gum, but seafood-loving astronomers might...
  • Chris Evans quits Top Gear after disastrous first season

    07/04/2016 3:18:56 PM PDT · by SunkenCiv · 49 replies
    News (Australia) ^ | July 5, 2016 | unattributed
    Top Gear’s audience fell to a new low of two million viewers as the series stalled again in the ratings on Sunday. It also emerged he was facing a police probe following historic accusations of sexual assault. A woman who worked with Evans in the 1990s claims he exposed himself to her and grabbed her breasts. Sources told The Mirror that Evans, 50, was not asked to step down and he will not be replaced in the near future. The newspaper also reported that Top Gear is in pre-production for series 24 and Matt LeBlanc is now the lead presenter....
  • Earliest Roman Restaurant Found in France: Night Life Featured Heavy Drinking

    07/03/2016 8:14:51 PM PDT · by SunkenCiv · 33 replies
    Haaretz ^ | February 23, 2016 | Philippe Bohstrom
    An ancient tavern believed to be more then 2,100 years old has been found in the town of Lattes, southern France, making it the oldest Roman restaurant found in the Mediterranean. They also found evidence that while Romanization changed the locals' dining habits, it didn't do much for the cuisine. Evidently some things never change, though. The excavators in the town of Lattes found indoor gristmills and ovens for baking pita, each about one meter across. This oven, called a tabouna or taboon, is still used throughout the Middle East and Israel. In another room, across the courtyard from the...
  • Were Hebrews Ever Slaves in Ancient Egypt? Yes

    07/03/2016 10:06:40 AM PDT · by SunkenCiv · 21 replies
    Haaretz ^ | April 14, 2016 | Philippe Bohstrom
    Conclusively, Semitic slaves there were. However, critics argue there's no archaeological evidence of a Semitic tribe worshiping Yahweh in Egypt. Because of the muddy conditions of the East Delta, almost no papyri have survived -- but those that did, may provide further clues in the search for the lost Israelites. The papyrus Anastasi VI from around 3200 years ago describes how the Egyptian authorities allowed a group of Semitic nomads from Edom who worshiped Yahweh to pass the border-fortress in the region of Tjeku (Wadi Tumilat) and proceed with their livestock to the lakes of Pithom. Shortly afterwards, the Israelites...
  • Astronomy Picture of the Day -- The Cat's Eye Nebula

    07/03/2016 9:56:07 AM PDT · by SunkenCiv · 6 replies
    NASA ^ | Sunday, July 03, 2016 | (see photo credit)
    Explanation: Three thousand light-years away, a dying star throws off shells of glowing gas. This image from the Hubble Space Telescope reveals the Cat's Eye Nebula to be one of the most complex planetary nebulae known. In fact, the features seen in the Cat's Eye are so complex that astronomers suspect the bright central object may actually be a binary star system. The term planetary nebula, used to describe this general class of objects, is misleading. Although these objects may appear round and planet-like in small telescopes, high resolution images reveal them to be stars surrounded by cocoons of gas...
  • Astronomy Picture of the Day -- Firefly Trails and the Summer Milky Way

    07/01/2016 10:17:21 PM PDT · by SunkenCiv · 6 replies
    NASA ^ | Saturday, July 02, 2016 | (see photo credit)
    Explanation: A camera fixed low to a tripod on a northern summer's eve captured the series of images used in this serene, southern Ontario skyscape. The lakeside view frames our fair galaxy above calm water and the night's quintessential luminous apparitions. But the trails of light are neither satellite glint, nor meteor flash, nor auroral glow. In the wide-field composite constructed with four consecutive 15 second exposures, a pulsing firefly enters at the right, first wandering toward the camera, then left and back toward the lake, the central Milky Way rising in the background.