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Camouflage apples keep an eye on perishables

On the long journey from the fruit plantation to the retailer’s shelf, fruits can quickly perish. In particular, the refrigeration inside the cargo containers is not always guaranteed and existing methods for measuring the temperature are not sufficiently reliable. A new sensor solves this problem. It looks like a piece of fruit and acts like a piece of fruit — but is actually a spy.

(via WSJ)