Why Are Clouds White?

Tools

By By Steve Pool

SEATTLE - First of all, you have to remember that white light is made up of the 7 colors of the rainbow -- red, orange yellow green, blue, indigo, and violet (Just remember ROY G. BIV).

In the meantime, clouds are collections of tiny water droplets and ice crystals. Each of those droplets and crystals will reflect each color of light equally, combining to make them appear white.

As for what causes our familiar gray clouds around the Northwest? That's caused by higher clouds casting their shadow on lower-based clouds, or that the clouds are so dense that their top parts absorb most of the sunlight, casting their own shadow along their base, making them dark on the bottom (the part you see.)

Your Photos

YouNews Up! Up! And away! Up! Up! And away!
When I saw this dramatic cloud to the north, it reminded me of smoke, rising in billows until it hits the jet stream, then it's pulled hundreds of miles east. I had to capture it quickly. Within minutes the effect had faded.
YouNews Inside an osprey nest Inside an osprey nest
For my girlfriends birthday we had a party at her parents. We knew the nest was there but the owner hadn't seen or heard the osprey for a day or two. He asked me to fly my drone up and see if any was wrong. I flew up and found that there were two eggs inside.
YouNews Our Garden Our Garden
The growing season has been great.

The secret to this garden is simple.
I used recycled grass clippings.