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Keyword: science

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  • The Piltdown Warning: Sometimes "settled science" has a way of turning out to be a complete fraud.

    12/21/2012 5:21:22 AM PST · by SeekAndFind · 10 replies
    American Thinker ^ | 12/21/2012 | Bruce Walker
    The left loves to muster the armies of official "science" to discount conservative values and principles. Man-made global warming, of course, is one example. Natural cycles of warming and cooling are indisputable. When Europe was cooler, 10,000 years ago, Britain was not an island, and what would become the English Channel has been called Doggerland, a land bridge between Britain and mainland Europe. Doggerland vanished about 6,500 years ago as natural global warming melted the oceans enough to cause the sea to rise. Later, in the Little Ice Age, Britain endured a natural cooling which caused many crops to fail...
  • Fighting Shaped Human Hands

    12/21/2012 3:34:08 AM PST · by Makana · 33 replies
    The Journal of Experimental Biology ^ | December 19, 2012 | The Journal of Experimental Biology
    — The human hand is a finely tuned piece of equipment that is capable of remarkable dexterity: creating art, performing music and manipulating tools. Yet David Carrier from the University of Utah suggests that the human hand may have also evolved its distinctive proportions for a less enlightened reason: for use as a weapon. In a new study, Carrier and colleague Michael Morgan publish their theory that human hands evolved their square palms and long thumb to stabilise the fist and produce a compact club for use in combat.
  • Astronomy Picture of the Day -- M33: Triangulum Galaxy

    12/19/2012 9:29:54 PM PST · by SunkenCiv · 9 replies
    NASA ^ | December 20, 2012 | (see photo credit)
    Explanation: The small, northern constellation Triangulum harbors this magnificent face-on spiral galaxy, M33. Its popular names include the Pinwheel Galaxy or just the Triangulum Galaxy. M33 is over 50,000 light-years in diameter, third largest in the Local Group of galaxies after the Andromeda Galaxy (M31), and our own Milky Way. About 3 million light-years from the Milky Way, M33 is itself thought to be a satellite of the Andromeda Galaxy and astronomers in these two galaxies would likely have spectacular views of each other's grand spiral star systems. As for the view from planet Earth, this sharp composite image, a...
  • Astronomy Picture of the Day -- NGC 5189: An Unusually Complex Planetary Nebula

    12/19/2012 3:46:15 AM PST · by SunkenCiv · 7 replies
    NASA ^ | December 19, 2012 | (see photo credit)
    Explanation: Why is this nebula so complex? When a star like our Sun is dying, it will cast off its outer layers, usually into a simple overall shape. Sometimes this shape is a sphere, sometimes a double lobe, and sometimes a ring or a helix. In the case of planetary nebula NGC 5189, however, no such simple structure has emerged. To help find out why, the Earth-orbiting Hubble Space Telescope recently observed NGC 5189 in great detail. Previous findings indicated the existence of multiple epochs of material outflow, including a recent one that created a bright but distorted torus running...
  • Astronomy Picture of the Day -- A Sun Pillar Over Sweden

    12/18/2012 7:03:07 PM PST · by SunkenCiv · 19 replies
    NASA ^ | December 18, 2012 | (see photo credit)
    Explanation: Have you ever seen a sun pillar? When the air is cold and the Sun is rising or setting, falling ice crystals can reflect sunlight and create an unusual column of light. Ice sometimes forms flat, six-sided shaped crystals as it falls from high-level clouds. Air resistance causes these crystals to lie nearly flat much of the time as they flutter to the ground. Sunlight reflects off crystals that are properly aligned, creating the sun-pillar effect. In the above picture taken last week, a sun-pillar reflects light from a Sun setting over Östersund, Sweden.
  • Astronomy Picture of the Day -- NGC 922: Collisional Ring Galaxy

    12/18/2012 6:58:33 PM PST · by SunkenCiv · 6 replies
    NASA ^ | December 17, 2012 | (see photo credit)
    Explanation: Why does this galaxy have so many big black holes? No one is sure. What is sure is that NGC 922 is a ring galaxy created by the collision of a large and small galaxy about 300 million years ago. Like a rock thrown into a pond, the ancient collision sent ripples of high density gas out from the impact point near the center that partly condensed into stars. Pictured above is NGC 922 with its beautifully complex ring along the left side, as imaged recently by the Hubble Space Telescope. Observations of NGC 922 with the Chandra X-ray...
  • Astronomy Picture of the Day -- MWC 922: The Red Square Nebula

    12/16/2012 1:01:56 AM PST · by SunkenCiv · 7 replies
    NASA ^ | December 16, 2012 | (see photo credit)
    Explanation: What could cause a nebula to appear square? No one is quite sure. The hot star system known as MWC 922, however, appears to be embedded in a nebula with just such a shape. The above image combines infrared exposures from the Hale Telescope on Mt. Palomar in California, and the Keck-2 Telescope on Mauna Kea in Hawaii. A leading progenitor hypothesis for the square nebula is that the central star or stars somehow expelled cones of gas during a late developmental stage. For MWC 922, these cones happen to incorporate nearly right angles and be visible from the...
  • Astronomy Picture of the Day -- When Gemini Sends Stars to Paranal

    12/14/2012 9:40:15 PM PST · by SunkenCiv · 1 replies
    NASA ^ | December 15, 2012 | (see photo credit)
    Explanation: From a radiant point in the constellation of the Twins, the annual Geminid meteor shower rained down on planet Earth this week. Recorded near the shower's peak in the early hours of December 14, this skyscape captures Gemini's lovely shooting stars in a careful composite of 30 exposures, each 20 seconds long, from the dark of the Chilean Atacama Desert over ESO's Paranal Observatory. In the foreground Paranal's four Very Large Telescopes, four Auxillary Telescopes, and the VLT Survey telescope are all open and observing. The skies above are shared with bright Jupiter (left), Orion, (top left), and the...
  • Astronomy Picture of the Day -- Umbra World

    12/14/2012 9:35:39 PM PST · by SunkenCiv · 11 replies
    NASA ^ | December 14, 2012 | (see photo credit)
    Explanation: On the morning of November 14, sky gazers from around the world gathered on this little planet to stand in the dark umbral shadow of the Moon. Of course, the Moon cast the shadow during last month's total solar eclipse, and the little planet is actually a beach on Green Island off the coast of Queensland, Australia. The picture itself, the first little planet projection of a total solar eclipse, is a digitally warped and stitched wrap-around of 8 images covering 360x180 degrees. To make it, the intrepid photographer had to remember to shoot both toward and away(!) from...
  • Astronomy Picture of the Day -- Apollo 17: A Stereo View from Lunar Orbit [3D]

    12/13/2012 8:55:00 PM PST · by SunkenCiv · 6 replies
    NASA ^ | December 13, 2012 | (see photo credit)
    Explanation: Get out your red/blue glasses and check out this awesome stereo view of another world. The scene was recorded by Apollo 17 mission commander Eugene Cernan on December 11, 1972, one orbit before descending to land on the Moon. The stereo anaglyph was assembled from two photographs (AS17-147-22465, AS17-147-22466) captured from his vantage point on board the Lunar Module Challenger as he and Dr. Harrison Schmitt flew over Apollo 17's landing site in the Taurus-Littrow Valley. The broad, sunlit face of the mountain dubbed South Massif rises near the center of the frame, above the dark floor of Taurus-Littrow...
  • Scientists claim that homosexuality is not genetic—but it arises in the womb

    12/11/2012 5:42:41 PM PST · by Olog-hai · 59 replies
    io9.com ^ | Dec 11, 2012 8:00 AM | George Dvorsky
    A team of international researchers has completed a study that suggests we will probably never find a “gay gene.” Sexual orientation is not about genetics, say the researchers; it’s about epigenetics. This is the process where DNA expression is influenced by any number of external factors in the environment. And in the case of homosexuality, the researchers argue, the environment is the womb itself. … Specifically, the researchers discovered sex-specific epi-marks which, unlike most genetic switches, get passed down from father to daughter or mother to son. Most epi-marks don’t normally pass between generations and are essentially “erased.” Rice and...
  • The Folly of Scientism

    12/12/2012 6:07:02 PM PST · by neverdem · 29 replies
    The New Atlantis ^ | Fall 2012 | Austin L. Hughes
    When I decided on a scientific career, one of the things that appealed to me about science was the modesty of its practitioners. The typical scientist seemed to be a person who knew one small corner of the natural world and knew it very well, better than most other human beings living and better even than most who had ever lived. But outside of their circumscribed areas of expertise, scientists would hesitate to express an authoritative opinion. This attitude was attractive precisely because it stood in sharp contrast to the arrogance of the philosophers of the positivist tradition, who claimed...
  • Astronomy Picture of the Day -- Milky Way Over Quiver Tree Forest

    12/11/2012 9:40:55 PM PST · by SunkenCiv · 8 replies
    NASA ^ | December 12, 2012 | (see photo credit)
    Explanation: In front of a famous background of stars and galaxies lies some of Earth's more unusual trees. Known as quiver trees, they are actually succulent aloe plants that can grow to tree-like proportions. The quiver tree name is derived from the historical usefulness of their hollowed branches as dart holders. Occurring primarily in southern Africa, the trees pictured in the above 16-exposure composite are in Quiver Tree Forest located in southern Namibia. Some of the tallest quiver trees in the park are estimated to be about 300 years old. Behind the trees is light from the small town of...
  • The Impossibility of Rapid Energy Transitions

    12/11/2012 1:03:35 PM PST · by neverdem · 10 replies
    The American ^ | December 6, 2012 | Kenneth P. Green
    Understanding energy system inertia and momentum is key to judging whether a rapid transition toward any type of energy is feasible. I am tonight setting a clear goal for the energy policy of the United States. Beginning this moment, this Nation will never use more foreign oil than we did in 1977 — never. From now on, every new addition to our demand for energy will be met from our own production and our own conservation. The generation-long growth in our dependence on foreign oil will be stopped dead in its tracks right now and then reversed as we move...
  • Rubio: “There is no scientific debate on the age of the earth”

    12/06/2012 9:47:52 AM PST · by ksen · 278 replies
    Salon.com ^ | 12/5/2012 | Jillian Rayfield
    After dabbling in creationism earlier this month, Sen. Marco Rubio, R-Fla., clarified that he does believe that scientists know the Earth is “at least 4.5 billion years old.” “There is no scientific debate on the age of the earth. I mean, it’s established pretty definitively, it’s at least 4.5 billion years old,” Rubio told Mike Allen of Politico. ”I was referring to a theological debate, which is a pretty healthy debate. “The theological debate is, how do you reconcile with what science has definitively established with what you may think your faith teaches,” Rubio continued. “Now for me, actually, when...
  • Astronomy Picture of the Day -- NGC 604: Giant Stellar Nursery

    12/11/2012 4:15:16 AM PST · by SunkenCiv · 4 replies
    NASA ^ | December 11, 2012 | (see photo credit)
    Explanation: Stars are sometimes born in the midst of chaos. About 3 million years ago in the nearby galaxy M33, a large cloud of gas spawned dense internal knots which gravitationally collapsed to form stars. NGC 604 was so large, however, it could form enough stars to make a globular cluster. Many young stars from this cloud are visible in the above image from the Hubble Space Telescope, along with what is left of the initial gas cloud. Some stars were so massive they have already evolved and exploded in a supernova. The brightest stars that are left emit light...
  • Astronomy Picture of the Day -- Time-Lapse: A Total Solar Eclipse

    12/10/2012 7:17:29 PM PST · by SunkenCiv · 5 replies
    NASA ^ | December 10, 2012 | (see photo credit)
    Explanation: Have you ever experienced a total eclipse of the Sun? The above time-lapse movie depicts such an eclipse in dramatic detail as visible from Australia last month. As the video begins, a slight dimming of the Sun and the surrounding Earth is barely perceptible. Suddenly, as the Moon moves to cover nearly the entire Sun, darkness sweeps in from the left -- the fully blocked part of the Sun. At totality, only the bright solar corona extends past the edges of the Moon, and darkness surrounds you. Distant horizons are still bright, though, as they are not in the...
  • Astronomy Picture of the Day -- The Astronaut Who Captured a Satellite [from 1984]

    12/08/2012 9:19:40 PM PST · by SunkenCiv · 16 replies
    NASA ^ | December 09, 2012 | (see photo credit)
    Explanation: In 1984, high above the Earth's surface, an astronaut captured a satellite. It was the second satellite captured that mission. Pictured above, astronaut Dale A. Gardner flies free using the Manned Maneuvering Unit and begins to attach a control device dubbed the Stinger to the rotating Westar 6 satellite. Communications satellite Westar 6 had suffered a rocket malfunction that left it unable to reach its intended high geosynchronous orbit. Both the previously caught Palapa B-2 satellite and the Westar 6 satellite were guided into the cargo bay of the Space Shuttle Discovery and returned to Earth. Westar 6 was...
  • Astronomy Picture of the Day -- Baku Moonrise

    12/08/2012 10:58:48 AM PST · by SunkenCiv · 6 replies
    NASA ^ | December 08, 2012 | (see photo credit)
    Explanation: A Full Moon rises in this waterfront scene. Its colorful, watery reflection is joined by harbor lights and a windowed skyscraper's echo of the western horizon just after sunset. The tantalizing image is a composite of frames recorded at 2 minute intervals on November 28 from the Caspian Sea port city of Baku, Azerbaijan. Still, this Full Moon was not really as big or as bright as others, though it might be hard to tell. In fact, November 28's Full Moon was near apogee, making it the smallest Full Moon of 2012. As it rose over the Baku boardwalk...
  • Media Discussion of my pieces on Bob Costas (John Lott)

    12/08/2012 8:42:20 AM PST · by marktwain · 2 replies
    johnrlott.blogspot.com ^ | 8 December, 2012 | John Lott
    Regarding my first op-ed this last week at Fox News on Costas here is some of the reaction. I will update this later when I have time to put in responses. From Entertainment Weekly: As you can guess, his commentary was closely scrutinized, and while some applauded his effort, many criticized him for broaching a politically taboo subject in the midst of Sunday Night Football. Second-Amendment advocates like Fox News’ John Lott dismissed Costas for his “emotional reaction,” and media-watcher Howard Kurtz said, “If Bob Costas wanted to urge gun control during NFL, he should have made his own case,...