The changing hues of a peacock’s splendid tail feathers have always captivated curious minds. Seventeenth-century English scientist Robert Hooke called them “fantastical,” in part because wetting the ...

Mother Nature always has a few tricks up her sleeve, and one of those which has charmed me for years is the magic of color-changing flowers. I’m not talking about flowers like hydrangeas, whose flower ...

If you've ever dined with a stuffy nose, you know that what you smell strongly influences what you taste. But what you see matters too. Even the color of a cup can trick your taste buds. That’s ...