Zero-Power Infrared Sensor

Zero-Power Infrared Sensor

We write a lot about power here at Health Tech Insider, because the digital electronics used by wearable Health Tech devices require power. Consuming less power — or storing more energy — means that a device can run a lot longer between charges, or be...
Blood-Powered Devices

Blood-Powered Devices

Nearly all our electricity comes from mechanical energy; a flow of liquid or gas passes a propeller or similar device, which spins magnets in a coil of wire to produce an electrical current. This is the basic technology behind hydroelectric, coal, gas, nuclear, and...