Two-way audio is standard on most consumer security cameras these days. Most people try it once, talk to their dog through ...

Scientists fear warming is driving a collapse in the ocean currents that shape climate far and wide. The ice-choked waters off Greenland might hold the key. By Raymond Zhong and Esther Horvath Mr.

Abstract: In the Internet of Things (IoT) era, the demand for sustainable and autonomous wireless sensor nodes has surged, driven by the need for efficient environmental monitoring and management.