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| Date: | Tue, 16 Sep 2008 11:28:15 -0400 |
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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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
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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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