Winter Is Coming. What If Roads And Runways Could De-Ice Themselves?
Researchers are looking for alternatives to salt or harmful chemicals, including using concrete that can safely conduct electricity and heat road surfaces to keep them clear of ice and snow.
Đọc thêm tại NPR
at October 1, 2017 at 07:02PM
Health & Science
Chủ Nhật, 1 tháng 10, 2017
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