Google Glass — the glasses with a computer, Internet and camera built in — is only the latest version of wearable technology. The wristwatch was one of the first.
Off Book, a Web video series from PBS, explorers the future of wearable technology — from devices that help you figure out why you can't sleep to "smart" fabrics.
"For example, think about a garment you don't have to wash," says Sabine Seymour of Parsons, the New School for Design. "They can change their shape, their color ... fabrics that have a metallic coating, or yarns that are conductive. We want to make the actual fiber smart, so that through nanotechnology we can create a textile that can sense."
h/t NPR's Jeremy Pennycook