Chemically, the patina that forms on copper is the result of oxidation and exposure to the elements, gradually transforming the metal from bright, reflective orange to a matte blue-green surface. That ...

This article may contain affiliate links that Yahoo and/or the publisher may receive a commission from if you buy a product or service through those links. Because of its popularity, it’s no surprise ...

Every other Friday on Morning Edition, the Outside/In team answers a question from a listener about the natural world. For the past few weeks, we’ve been tackling queries on the theme of “blue.” What ...

Whether it’s the ultramarine of an Yves Klein masterpiece or the faded chambray of a shirt worn soft over decades, blue sets a certain tone. A moody navy can provide a dose of quiet luxury, while a ...

The color has an unshakable hold on musicians, artists and writers. The background color is inspired by International Klein Blue, a hue that the artist Yves Klein first mixed in the 1950s, using it to ...

First there was “the dress,” then there was the sneakers, now there’s a debate over the color blue. If you’ve ever argued with a friend over whether something is blue or green, you’re not alone. A new ...

They say the eyes are "the window to the soul" and there's certainly much to be told about the enigmatic complexity of their varied colors. Dr. Rupa Wong, a board-certified ophthalmologist who owns ...

Gourmands are well aware of the many varieties of blue cheese, known by the blue-green veins that ripple through the cheese. Different kinds of blue cheese have distinctive flavor profiles: they can ...