With the ability to detect and amplify extremely weak electromagnetic signals without adding additional noise, masers have ...

Light sensors detect the presence or absence of light, and the intensity of that light. These sensors then convert light ...

In modern devices, such as phone screens or advanced sensors, light is often generated by pairs of organic molecules, where one molecule, known as the donor, transmits electrons, and the other, ...

Give your house a cozy, cottage core makeover and use a hot glue gun to create some DIY mushroom lights. These whimsical decorations can brighten any room.

In the frozen reaches of the planet—glaciers, mountaintops, and icy groundwater—scientists have uncovered strange ...

Middle school students in a UNLV and University of Nevada, Reno Extension workshop learned how to grow plants in a ...

Amazon is offering a sweet deal on this solar 2-in-1 bug zapper, which features an LED light that can be used at night. Shop this 25% off deal to eliminate those biting mosquitoes.

After a brief stint in the IT industry, Terrence made the transition to tech journalism over 15 years ago and hasn’t looked back. As managing editor of Engadget, he led an impressive team of reporters ...

Build a Speed Sensor using Arduino with IR speed sensors to accurately measure the speed of moving objects. This tutorial covers circuit design, sensor calibration, speed calculations, and optimized ...

Philips makes a wide number of smart LED lights that offer a mix of colors and lighting effects that you can control remotely. Here’s a guide.

The concept of using an LED as a sensor is much like using a speaker as a microphone. Flip things around, and instead of emitting light, the LED senses it instead.