A major challenge in self-powered wearable sensors for health care monitoring is distinguishing different signals when they occur at the same time. Researchers addressed this issue by uncovering a new ...

An accelerometer measures the acceleration of your phone. It does that on three axes: horizontal, vertical, and forward/backward. It also senses vibration, tilt, and free fall. Being able to calculate ...

Laser diodes are semiconductors that generate light and amplify it using repeated reflection or "optical feedback." Once the ...

In addition, each sensor includes a thermoelectric cooler ... many of the problems associated with collecting and sampling light. This helps keep measurements accurate and stable across a variety ...

Researchers have developed a new optical sensor that provides a simple way to achieve real-time detection of extremely low levels of arsenic in water.

LED light wands, or light sticks, provide an effective (and relatively affordable) alternative to a photographer’s flashgun or a videomaker’s stand-mounted lamp. You don’t need to sync a light wand ...

But after more than a dozen hours with Hyper Light Breaker – a follow-up (though not a proper sequel) to one of my all-time favorite indie games, Hyper Light Drifter – I feel like Vito ...

These light-emitting devices are all over the internet. We asked experts if they can reduce wrinkles, clear acne and more. By Melinda Wenner Moyer You’ve probably noticed this scene on social ...

Sensors can quantify everything from temperature, light intensity and mechanical stress ... based on a magnetically levitated force sensor. Although no evidence of dark energy has been found ...

Auroras aren't the only show in town, however. Our planet's atmosphere can shed light through other energetic processes, some a little more complex than others. Plain old sunlight can cause molecules ...

SINGAPORE – Light To Night Singapore, the marquee event of Singapore Art Week, returns to the Civic District from Jan 17 to Feb 6. Themed “Do You See Me?”, the 2025 edition of the well-loved ...