Star-favored, board-certified aesthetics physician Dr. Glenicia Nosworthy explains how to choose the right high-tech tool for ...

Is black a colour? Black isn’t in the rainbow, but where does it fit in the colour spectrum? What makes something appear ...

Earlier, and perhaps more basic, LED masks usually provide just one primary colour treatment mode, such as red or blue, ...

Ever wondered why the sky is blue? It's not just a reflection of the ocean! Sunlight, seemingly white, is a mix of colors. As it enters Earth's atmosp ...

Bup bup bup — no, violet is actually a completely different color, scientifically speaking. Like all other colors in the spectrum (and hence in the rainbow), it has its own wavelength and ...

Violet is a real spectral color, while purple is fake and exists only as a mix of red and blue light. There’s no pure “purple” wavelength, which is why it’s left out of the rainbow entirely.

Colors are one of the first things people learn about in school. Well, you might have to start re-learning. At least, when it comes to one color people think is on the spectrum. Popular Mechanics ...

But purple? Well, purple is just your brain’s way of resolving confusion. That’s right. Red and blue (or violet) wavelengths are two opposite extremes on the spectrum.

Sunlight consists of a spectrum of colors, each with a different wavelength. Violet has the shortest wavelength and bends the most, while red has the longest wavelength and bends the least.

Red, orange and yellow have longer wavelengths, which means, in short, they have a better chance of making the long journey. -Wildfire smoke that turns the sky a hazy orange.