EARTH ONCE GLOWED — The earth’s surface in its early years of life may have glowed like a beautiful rainbow, shimmering with the colorful array of light emitted by primitive organisms. Light emission may have occurred soon after life appeared on earth, when the atmosphere lacked oxygen…. As small amounts of oxygen appeared in the atmosphere, not all of the organisms could tolerate the...
September 6 In New York City, author Joshua Foer discusses the history and science of competitive memorization. See www.nyas.org
September 15 Deadline to submit photos illustrating “chemistry in our microbes” to the Colors of Chemistry calendar contest. For info go to colorsofchemistry.org
SCIENCE & THE PUBLIC BLOG Smoke-exposed kids are more likely to have neuro-behavioral disorders. See "Young minds at risk from secondhand smoke."
BODY & BRAIN At-risk newborns may avoid death and disability by cooling off. See "News in Brief: Body & Brain."
Active neurons trigger changes that speed up signaling. Read "How exercise benefits nerve cells."
Anne Clark and Kevin McGowan are discussing, perfectly seriously, how a crow might be able to recognize a car. Not tell a car from, say, a cat, but pick out the red Subaru from other cars in the parking lot.
Clark, an animal behaviorist at Binghamton University in New York, is sitting in her own red Subaru with McGowan, of...
When it comes to the safety of dyeing food, the one true shade is gray.
Artificial colorings have been around for decades, and for just about as long, people have questioned whether tinted food is a good idea. In the 1800s, when merchants colored their products with outright poisons, critics had a pretty good case. Today’s safety...