Can heat be channeled similar to how circuits control the flow of electricity? Possibly yes, according to a new study, if a new kind of quasiparticle could effectively be harnessed to make a practicable heat switch. Nearly every piece of technology today could be a case study in electricity being channeled toward productive purposes. With […]
Novel yarns made with carbon nanotubes can generate electricity from mechanical energy better than any other material to date, a new study finds. The high-tech yarns, known as twistrons, can be sewn into clothes to produce electricity from human motion or deployed in the ocean to harvest energy from waves, researchers say. Electromagnetic generators, which […]
A wearable ultrasound imager for the heart that is roughly the size of a postage stamp, can be worn for up to 24 hours, and works even during exercise may one day help doctors spot cardiac problems that current medical technology might miss, a new study finds. Heart disease is the leading cause of death […]
Wearable sensors now often help keep track of vital signs, but these devices usually rely on bulky microchips and batteries. Now scientists have invented a new microscopically thin “electronic skin” that can wirelessly transmit data about the body’s heart rate and chemistry, all without chips or batteries. Recent advances in flexible and stretchable circuits and […]