Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...

As the U.S. continues to wait for newer sunscreen ingredients, patients should use tinted sunscreens to protect against visible light that causes photodamage, melasma and hyperpigmentation, according ...

Blue light, which emanates from sunlight, LED-based ... The visible spectrum is the portion of the electromagnetic spectrum that is visible to (can be detected by) the human eye. Electromagnetic ...

"Why are there so many songs about rainbows?" sings Kermit the Frog in a song (about rainbows) called "Rainbow Connection" from 1979's "The Muppet Movie." And it's not just songs that feature rainbows ...

Among the various techniques, supercontinuum (SC) generation stands out for its ability to produce light across a wide portion of the visible and infrared spectrum. However, traditional SC sources ...

Our love affair with technology can wreck our vision and sleep, thanks to blue light. “The problem is that, with technology, we are being overexposed to blue light,” said ophthalmologist Dr. Rafael ...

Many of us pay attention to the foods we're putting in our bodies—asking ourselves whether they're nutritious and healthy for ...

The point is that we generally consider light to be good, safe, even comforting. Yet when it comes to our skin, things are a ...

Using 20 years of data from the Hubble Space Telescope astronomers have discovered that turbulent stars could be corrupting ...