We know we got here from somewhere, but who would have suspected it was by way of a fish that used electrical currents to hunt and communicate and locate itself?
Smooth wrinkles and sharply crumpled regions are familiar motifs in biological and synthetic sheets, such as plant leaves and crushed foils, say physicists Benny Davidovitch, Narayanan Menon and colleagues at the University of Massachusetts Amherst, but how a featureless sheet develops a complex shape has long remained elusive. Now, in a cover story of the…
Recent media stories suggest that anti-aging medicine may soon change from fantasy into a scientifically realistic prospect. If anti-aging medicine is to become a reality, then the various theories about how to halt or reverse the aging process will require testing on human subjects. Carrying out such tests will place unprecedented pressure on the rules…
Lack of rain has left many rivers at low levels unseen for decades, and while this creates problems for river commerce, it also offers an occasional treasure trove of history. For example, a rock containing what is believed to be an ancient map has emerged in the Mississippi River in southeast Missouri, with etchings that may be 1,200 years old.
Archaeologists say they have found traces of 2,500-year-old chocolate on a plate in the Yucatan peninsula, the first time they have found ancient chocolate residue on a plate rather than a cup, suggesting it may have been used as a condiment or sauce with solid food. Experts have long thought cacao beans and pods were…
This short video by Michael Marantz presents an optimistic and heroic vision of our future.
At NASA’s Goddard Space Flight Center in Maryland, some of the most brilliant minds in the world work to build the spacecraft that humans use to explore their universe. But where space scientists now roam, dinosaurs used to call home, according to dino-hunter Ray Stanford. Stanford has discovered the footprint of a lumbering, spiny dinosaur…