Forget Silicon. This Computer Is Made of Fabric

Dan Preston logs in to our video call in a respectable, nondescript button-up shirt. His personal style may lean toward the conventional, but the Rice University mechanical engineer is here to tell me about his creative new fashion design. His team has made a shiny black jacket that performs logic—without electronics. Specifically, the jacket can raise and lower its own hood at the push of a button, and it contains a simple 1-bit memory that stores the state of the hood. Or, as Preston says, it’s “a non-electronic durable logic in a textile-based device.”

Here’s where we need to emphasize the wildness of this design. The hoodie does not contain

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