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posted by martyb on Friday December 04 2015, @04:51AM   Printer-friendly
from the made-in-the-shade,-oh-wait dept.

Whenever a new tower starts muscling its way toward the sky, it drains a bit more light from the streets and parks below, so walking along a sidewalk can sometimes feel like pacing the bottom of a deep well. But what if, even in the densest thickets of Manhattan, skyscrapers could be designed to shrink, or even bleach out, the shadows they cast? Imagine a structure that bends like a rubbery dancer to dodge as many rays as possible and let them fall on a park instead. That’s what Jeanne Gang’s Solar Carve tower will do for the High Line. Or think of a high-rise fitted out with angled mirrors that make its shadow glow. Jean Nouvel’s One Central Park in Sydney, Australia, does that. New Yorkers who fear that a 1,500-foot-high wall of deluxe condos will one day cast Sheep Meadow in permanent shadow could start demanding designs that cast soft, glare-free pools of light instead.

Software and high-tech glass offer precise ways of managing shadows, but the idea of maximizing solar access has a long pedigree. In the 1970s, the Los Angeles–based architect Ralph Knowles observed that the Acoma people of New Mexico had always oriented their terraced pueblos to the south, ensuring that every house would get maximum exposure to the low winter sun. Knowles proposed enshrining a right to sunshine in a legal concept he called the “solar envelope.” In New York, resistance to darkened streets is already baked into law. We’re approaching the centennial of the 1916 zoning code, which obliges buildings to retreat as they rise, opening up cones of sunshine that touch the ground. The pursuit of light created the classic New York skyscraper.

Attractive concept, but one to be used with care.


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  • (Score: 1, Interesting) by Anonymous Coward on Friday December 04 2015, @05:54AM

    by Anonymous Coward on Friday December 04 2015, @05:54AM (#271703)

    > Attractive concept, but one to be used with care.

    Gotta pay attention to acoustics too, else you might get a symphony like this one in Manchester. [youtube.com]

    • (Score: 0) by Anonymous Coward on Friday December 04 2015, @01:29PM

      by Anonymous Coward on Friday December 04 2015, @01:29PM (#271778)

      1 pound sterling damages to every affected citizen per minute of humming that exceeds 50db. Let's see how long it takes for them to fix that?

  • (Score: 4, Interesting) by frojack on Friday December 04 2015, @06:10AM

    by frojack (1554) on Friday December 04 2015, @06:10AM (#271705) Journal

    1916 zoning code, which obliges buildings to retreat as they rise, opening up cones of sunshine that touch the ground.

    Now we know why the straight sided World Trade Center had to come down.

    But Looking at TFA, all I see is one building compensating for a different building's shadow, while casting its own shadow on some other property. So its another way to rob Peter to pay Paul, and rich folks get sunshine while the rest get the shadows.

    Perhaps we should stop trying to cram more people into cities already dense beyond reason. Its the digital age. We don't all have to be within arm's reach of each other any more just to transact business.

    --
    No, you are mistaken. I've always had this sig.
    • (Score: 0) by Anonymous Coward on Friday December 04 2015, @06:21AM

      by Anonymous Coward on Friday December 04 2015, @06:21AM (#271707)

      Who cares about natural light anyway? We invented light bulbs to defeat that nature crap.

      • (Score: 0) by Anonymous Coward on Friday December 04 2015, @09:09AM

        by Anonymous Coward on Friday December 04 2015, @09:09AM (#271740)

        Living 55 degrees north, I get squirrely if I do not get to see the sun during the day.

        The sun is very bright compared to lamps burning less than about 150W.

    • (Score: 4, Insightful) by Adamsjas on Friday December 04 2015, @08:35AM

      by Adamsjas (4507) on Friday December 04 2015, @08:35AM (#271726)

      Maybe this is the opposite of what architects should be doing. Maybe with global warming they should be trying to create more shade. Maybe they should be using the sunlight they absorb to produce energy, or reflect and focus that sunlight skyward and out into space.

      • (Score: 2) by xav on Friday December 04 2015, @11:46PM

        by xav (5579) on Friday December 04 2015, @11:46PM (#271998)

        Global warming is not directly due to sunlight but to infrared that can not go past the upper atmosphere and get reflected. The problem is not that we should capture sunlight but that we must allow infrared to escape Earth atmosphere.

        Maybe with global warming they should be trying to create more shade (...) or reflect and focus that sunlight skyward and out into space.

        The total surface of all shadows created by man-made constructions on Earth is very very very very tiny in comparison to the Earth surface exposed to sunlight, and it will remain so forever. You won't solve global warming by just capturing the sunlight energy that hits buildings.

        But you are right. That energy, however tiny, should be reused anyway. The solution to global warming is to alleviate the greenhouse effect, not by capturing light and focusing into space, but by using a green energy that will not worsen it. And light is the greenest energy.

  • (Score: 2) by MostCynical on Friday December 04 2015, @07:51AM

    by MostCynical (2589) on Friday December 04 2015, @07:51AM (#271716) Journal

    they should all be very tall pyramids or ziggurats! Maybe the 1916 zoning rules can be broken, if you pay enough?

    --
    "I guess once you start doubting, there's no end to it." -Batou, Ghost in the Shell: Stand Alone Complex
  • (Score: 2) by wonkey_monkey on Friday December 04 2015, @08:36AM

    by wonkey_monkey (279) on Friday December 04 2015, @08:36AM (#271728) Homepage

    Welcome to the Age of Shadowless Skyscrapers

    Apart from the fact that they all have shadows, that's an excellent headline.

    Imagine a structure that bends like a rubbery dancer to dodge as many rays as possible and let them fall on a park instead. That’s what Jeanne Gang’s Solar Carve tower will do for the High Line.

    That makes it sound like an actively moving building, which it is not (at least, as far as I can ascertain). It's just a weird shape, designed to cast a smaller shadow.

    --
    systemd is Roko's Basilisk
    • (Score: 0) by Anonymous Coward on Friday December 04 2015, @10:08AM

      by Anonymous Coward on Friday December 04 2015, @10:08AM (#271749)

      Indeed, I would predict that actively buildings moving "like a rubbery dancer" would not get very popular. Most people prefer to live or work in environments that don't make you sea sick.

  • (Score: 0) by Anonymous Coward on Friday December 04 2015, @11:08AM

    by Anonymous Coward on Friday December 04 2015, @11:08AM (#271762)