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 ...
Many years ago, my younger sister made a dress for our mom as a birthday present. The dress was lovely—A-line, with short sleeves and a sort of sculpted scoop neck—but my sister’s choice of fabric was ...