A Wearable Furnace: Keeping Toasty Warm With Nanowire Fabric

Runners using aluminum blankets to keep warm. Credit: Adapted from Ian Hunter | flickr If you've ever stood exposed and shivering at the end of a run, you'll know just how quickly the body loses heat without protective clothing. To prevent this, aluminized plastic blankets are a common sight at the end of races; they insulate from cold air and reflect back the body's heat. But these blankets are impractical and uncomfortable for daily use, trapping in moisture as well as heat.  Using some basic...