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ask.metafilter.com > 390596 > Mineshaft-refrigerator

Mineshaft refrigerator?

2+ week, 1+ day ago   (95+ words) Reading this article (New Spanish nanomaterial cools surfaces by up to 12.9C without electricity) jogged something in my noggin. Please tell me whether I'm remembering something real or something imagined.About 50 years ago I think I read something about a refrigerator…...