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Keyword: polarized

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  • Incredible High-Tech Window Coating Allows Visible light Through But Blocks Heat

    04/03/2024 11:14:16 AM PDT · by Red Badger · 60 replies
    The Debrief ^ | APRIL 3, 2024 | Christopher Plain
    Scientists say they have created an experimental new high-tech window coating that works similarly to polarized lenses on sunglasses by allowing all of the visible light through while also reflecting unwanted heat. If added to existing buildings and car windows, the new coating could reduce internal temperatures in hotter climates without sacrificing any of the visible light while also reducing energy usage for indoor air conditioning by as much as 30%. The new coating was developed by researchers from Notre Dame University who were looking for a cheap yet viable way to reduce the use of air conditioning in cars...
  • Scientists prove that binary stars reflect light from one another (new way to study binaries)

    04/03/2019 2:52:41 PM PDT · by LibWhacker · 49 replies
    phys.org ^ | 4/2/19 | Lachlan Gilbert
    UNSW astronomers have shown that binary stars – two stars locked in orbit around each other – reflect light as well as radiating it, revealing new ways for their detection. One of the first things we learn in astronomy is that some of the objects in the sky (the Sun and the stars) produce their own light, whereas others (the Moon and the planets) are only visible because they reflect light from the Sun. But do the Sun and the stars also reflect some of the light that falls on them? This is a question that scientists from UNSW Sydney...
  • Ted Kennedy’s America

    08/29/2009 4:13:59 PM PDT · by edge10 · 17 replies · 1,038+ views
    New Republic Online ^ | October 26, 2007 12:00 AM | Jonah Goldberg
    If you think American politics have gotten nastier, crueler, and more symbolic over the last 20 years, blame Ted Kennedy.
  • Geology Pictures of the Week(s), April 11-24: Microgeology

    04/20/2004 8:19:00 AM PDT · by cogitator · 2 replies · 212+ views
    Various | 04/20/2004 | Various
    Link post, providing a link to the thread in the FR "chat" section, where any discussion and comments should be posted: Geology Pictures of the Week(s), April 11-24, 2004: Microgeology
  • Astronomy Picture of the Day 5-29-03

    05/28/2003 11:15:56 PM PDT · by petuniasevan · 5 replies · 2,148+ views
    NASA ^ | 5-29-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 May 29 Frizion Illume Credit & Copyright: Peter Wasilewski, (Goddard Space Flight Center) Explanation: Scientific images of cosmic dust clouds or even frozen water can be esthetic too. In fact, this picture of thin layers of forming ice crystals uses a scientific understanding of light's wave properties solely for artistic purposes. Titled "Illume", the picture was created by astrophysicist Peter Wasilewski. To make the picture, the crystals...
  • Astronomy Picture of the Day 4-09-03

    04/09/2003 5:32:48 AM PDT · by petuniasevan · 8 replies · 1,316+ views
    NASA ^ | 4-09-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 April 9 The Egg Nebula in Polarized Light Credit: W. Sparks (STScI) & R. Sahai (JPL), Hubble Heritage Team (STScI / AURA), NASA Explanation: Where is the center of the unusual Egg Nebula? Like a baby chick pecking its way out of an egg, the star in the center of the Egg Nebula is casting away shells of gas and dust as it slowly transforms itself into...