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Tag: University of California Los Angeles

  • NASA Unveils Night-Sky Unpolluted.

    NASA has rereleased detailed images of the Night-sky ,unpolluted by earthly Lights.

    The images were taken with the help of WISE(unmanned Satellite)

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    WISE is a NASA-funded Explorer mission that will provide a vast storehouse of knowledge about the solar system, the Milky Way, and the Universe. Among the objects WISE will study are asteroids, the coolest and dimmest stars, and the most luminous galaxies.

    WISE is an unmanned satellite carrying an infrared-sensitive telescope that will image the entire sky. Since objects around room temperature emit infrared radiation, the WISE telescope and detectors are kept very cold (below -430° F /15 Kelvins, which is only 15° Centigrade above absolute zero) by a cryostat — like an ice chest but filled with solid hydrogen instead of ice.

    You can also create your own Wise Model.

    Read the WISE mission Fact Sheet PDF (1.7 MB).
    Read the WISE Launch Press Kit PDF (2.0 MB).

    WISE in a box: Create your own 3-D model of the WISE spacecraft.

    http://wise.ssl.berkeley.edu/mission.html

    “Today, WISE delivers the fruit of 14 years of effort to the astronomical community,” said Edward Wright, WISE principal investigator at UCLA, who first began working on the mission with other team members in 1998.

    WISE launched Dec. 14, 2009, and mapped the entire sky in 2010 with vastly better sensitivity than its predecessors. It collected more than 2.7 million images taken at four infrared wavelengths of light, capturing everything from nearby asteroids to distant galaxies. Since then, the team has been processing more than 15 trillion bytes of returned data. A preliminary release of WISE data, covering the first half of the sky surveyed, was made last April.

    The WISE catalog of the entire sky meets the mission’s fundamental objective. The individual WISE exposures have been combined into an atlas of more than 18,000 images covering the sky and a catalog listing the infrared properties of more than 560 million individual objects found in the images. Most of the objects are stars and galaxies, with roughly equal numbers of each. Many of them have never been seen before.

    WISE observations have led to numerous discoveries, including the elusive, coolest class of stars. Astronomers hunted for these failed stars, called “Y-dwarfs,” for more than a decade. Because they have been cooling since their formation, they don’t shine in visible light and could not be spotted until WISE mapped the sky with its infrared vision.

    WISE also took a poll of near-Earth asteroids, finding there are significantly fewer mid-size objects than previously thought. It also determined NASA has found more than 90 percent of the largest near-Earth asteroids.

    http://digg.com/newsbar/topnews/the_whole_universe_from_one_satellite_s_eyes

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  • ART of learning-Study and Comments.

    Too much intervention by people other than students and Teachers have made learning a complicated one.
    Fundamentals are.
    Read where produces the best result.You do not need others to tell you,including psychologists, where to read.Children know it best.Ask them to study well.Do not impose your ideas, for all you know your ideas may be wrong or the idea may not suit the child.Also do not set ‘long term goals’ and short-term goals.it only frustrates the child.
    Do not compare the child with siblings and other children
    There are some who can read well amid disturbance and noise;some in solitude.
    But it is a fact Classical music improves concentration.In some cases loud rap music also does the job.
    Some learn by part learning,some by whole learning,some by key words,some by mnemonics.The learner knows which is good for him.If not we can suggest the alternates and ask him/her to check all of these and choose what suits him/her.
    Teaching with visuals ,anecdotes,actions all these improve learning process.
    Also reading in the early hours of the day between 430am to 6am is the most effective in terms of retentive memory
    Food that you take also has an important role to play
    That food which is stale,reheated, too spicy,oily does not help learning.Moderate tastes with less oil and fresh cooked home food is the best( you may check my  blog filed under Health)
    Teachers are to be a breed apart , for teaching is an art born out of passion, dedication and love of the children.Unless teachers have these attributes they are unfit to be teachers.Most important is the atmosphere at home-it must be calm and composed with out adults bickering like children in front of children.

    Story:

    As students around the country go back to school and hit the books, scientists are offering new insights into the best ways to study and learn, reports Benedict Carey in the Science Times Mind column. He writes:

    In recent years, cognitive scientists have shown that a few simple techniques can reliably improve what matters most: how much a student learns from studying. The findings can help anyone, from a fourth grader doing long division to a retiree taking on a new language. But they directly contradict much of the common wisdom about good study habits, and they have not caught on.

    For instance, instead of sticking to one study location, simply alternating the room where a person studies improves retention. So does studying distinct but related skills or concepts in one sitting, rather than focusing intensely on a single thing.

    “We have known these principles for some time, and it’s intriguing that schools don’t pick them up, or that people don’t learn them by trial and error,” said Robert A. Bjork, a psychologist at the University of California, Los Angeles. “Instead, we walk around with all sorts of unexamined beliefs about what works that are mistaken.”

    http://well.blogs.nytimes.com/2010/09/06/for-young-and-old-the-best-ways-to-study/?apage=3#comments

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