13 August 2018

Turn up the heat and see what you get

When we were kids we learned to write invisibly with lemon juice and then later we could reveal the secret message by holding it close to a flame. The heat revealed what had been previously hidden.

This summer's British heat wave is doing the same thing. The heat is revealing long lost patterns beneath the surface. Sam Knight digs a little deeper in this New Yorker piece on the visible archaeology. 


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