It's about that time of year where the leaves begin to change color, if you live in a fall folliage area.  But if you don't. A designer in Japan has crafted paper leaves that are sensitive to temperature change.  At room temperature (68-77°F), the leaf remains green.  Temperatures below that point will turn the leaf brown, while temperatures above will turn them yellow.
The Gadgeteer , Watch the Leaves Change From Your Couch, Watch the Leaves Change From Your Couch
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