Centuries ago, monks who took a vow of silence developed their own hand signs, with hundreds of gestures, that are still in use today. Plus, how do speakers of different languages distinguish similar shades and tints of colors such as red, yellow...
Enthusiastic book recommendations! Martha’s savoring the biography of Alexander von Humboldt, the 19th-century explorer, polymath, and naturalist who revolutionized our understanding of nature and predicted the effects of human activity on...
Butter of antimony, blue vitriol, flowers of zinc are terms used for centuries by alchemists, now replaced by the scientific names antimony trichloride, cupric sulfate, and powdered zinc oxide. In his delightful memoir Uncle Tungsten: Memories of a...
Astronauts returning from space say they experience what’s called the overview effect, a new understanding of the fragility of our planet and our need to reflect on what humans all share as a species. A book about the end of the universe...
It’s Book Recommendation Time! Martha’s makes an enthusiastic case for The Invention of Nature: Alexander Von Humboldt’s New World (Bookshop|Amazon). It’s historian Andrea Wulf’s biography of the polymath, adventurer...
An ornithologist says there’s a growing movement to change the name of a pink-footed bird currently called the flesh-footed shearwater. The movement reflects a growing understanding that using flesh-colored for “pink” fails to...