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It's also one of the reasons that synthetic turf is hotter than grass.
C
On Sep 16, 2008, at 8:28 AM, Daniels, Alissa wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology
> Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
> *****************************************************************************
>
> We were talking about our new green roof recently, and made the
> comment that the green roof is cooler than a traditional tar roof;
> any kid who has ever walked on the grass and then on the driveway
> can relate to that. The black roof absorbs a lot of heat.
>
> But then someone said "well, how about the sand on the beach? it's
> white AND hot." And we batted around a few ideas ranging from "well,
> it's still cooler than the black roof, and "well, the grass and the
> soil hold water, so that keeps it cool" and "it must have to do with
> the shape of the grains of sand..."
>
> Anyone else have any thoughts on this? Something to think about if
> your September is as quiet as our September.
>
> AD
>
> ~~~~~~~~~~~~~~~
> Alissa Daniels, Science Program Manager/Senior Educator
> Boston Children's Museum
> 617 426 6500 .342
> "The most exciting phrase to hear in science, the one that heralds
> new discoveries, is not "Eureka!" (I found it!) but "That's
> funny..." " --Isaac Asimov
> ~~~~~~~~~~~~~~~
>
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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
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