We love our clocks around these parts and this is a good one. It’s giant, it’s digital and it’s blue, which is all you really need. The interesting fact is that the clock reads 4:20 in the product ...

We may receive a commission on purchases made from links. If you like the idea of the Echo Wall Clock but not its basic, dark design, Citizen has launched a more appealing alternative: the Citizen ...

Researchers have designed and tested ‘human-centric’ LEDs that emit different wavelengths of blue light depending on whether it’s daytime or nighttime, reducing the disruptive effect artificial light ...

Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...

Forget harsh bleach—scientists have discovered that powerful blue LED light can erase yellow stains from sweat, food, and oils without harming delicate fabrics like silk. By harnessing oxygen in the ...