This easy-to-build walking reindeer can be constructed with only a bow motor, battery, wires, and a few other parts.

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

The "Sound of Ideas" is Ideastream Public Media's weekday morning news and information program focusing on Northeast Ohio. December 22, 2025 • Note: This episode originally aired on June 24, 2025.

The best sleep trackers can help you learn more about your sleep, improve it and feel more rested as time goes on. Caroline Igo (she/her/hers) was a wellness editor at CNET and holds Sleep Science ...

Nanosensors are chemical or mechanical sensors that can be used to detect the presence of chemical species and nanoparticles, or monitor physical parameters such as temperature, on the nanoscale. They ...