The electromagnetic spectrum is a rainbow of light waves that surround us — but we only see a small part of it. From radio waves to gamma rays, each type of light has its own properties and uses. By ...

Colors We Can’t Even See. The visible spectrum is just a slice of the electromagnetic range. Beyond violet lies ultraviolet, and beyond red is infrared.These wavelengths are invisible to the ...

The world is awash with the color purple — lavender flowers, amethyst gemstones, plums, eggplants and purple emperor butterflies. But if you look closely at the visible-light portion of the ...

The sun emits light across all the visible colors in the electromagnetic spectrum fairly evenly. When these come together united in sunlight the sun appears white. This is useful because if this ...

Discovered more than a century ago, the electromagnetic spectrum is the basis on which our universe operates. Without it we wouldn’t be able to see, stars wouldn’t shine, and life would not exist.

Mars isn’t a bright, fire-engine red, but the iron oxide in its rocks makes it appear redder than other planets, especially ...

To get color information, each pixel can be covered by a filter that only lets through a range of colors in the red, green or blue parts of the spectrum. A color image emerges after the raw per ...

Black on the color spectrum While there’s no black in a rainbow, photons anywhere in the electromagnetic spectrum can be seen as black. Or in some cases, they can’t be seen at all!

Back in the 1950s, when color TV was invented, everything was simple. TVs were either color or black-and-white, and you could tell at a glance which was which. Today, you can find TVs and monitors ...

The electromagnetic spectrum includes all forms of light energy, known as electromagnetic radiation. (1) ... When you notice a color change, record the new color and the first wavelength of which you ...

The color purple has long been a symbol of royalty, creativity, and mystery. But according to science, it’s also something else: a figment of our imaginations.