bee birth

Earning a bee’s wings

New research from Washington University in St. Louis shows that honey bees (Apis mellifera) develop different scent profiles as they age, and the gatekeeper bees at the hive’s door respond differently to returning foragers than they do when they encounter younger bees who have never ventured out before.
Solar cells and LEDs

When a defect might be beneficial

Rohan Mishra, assistant professor of mechanical engineering & materials science in the McKelvey School of Engineering, led a widespread team of researchers — including at Washington University, at Oak Ridge National Laboratory in Tennessee and at the University of Missouri-Columbia — that studied the structure and properties of the commonly occurring planar defects at the atomic scale, which spans only a few tenths of a nanometer.
Artists conception of the Etowah site (9BR1), a Mississippian culture archaeological site located on the banks of the Etowah River in Bartow County, Georgia. Built and occupied in three phases, from 1000–1550 CE. All rights held by the artist, Herb Roe © 2016. Source: Wikipedia Commons.

Pottery reveals America’s first social media networks

Long before Snapchat, Instagram, Facebook and even MySpace, early Mississippian Mound cultures in America’s southern Appalachian Mountains shared artistic trends and technologies across regional networks that functioned in similar ways as modern social media, suggests new research from Washington University in St. Louis.

WashU Expert: Mission complete

Ray Arvidson, professor of Earth and planetary sciences and the James S. McDonnell Distinguished University Professor, talks about the end of Opportunity’s longer-than-expected 15-year mission — he was the deputy principal investigator for the Mars exploration rover for NASA.
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