The discovery of anomalously high levels of mercury in rocks from the Ordivician geological period has led to a new interpretation of the ensuing mass extinction. A sequence of disturbances may have led to catastrophic cooling by reflective sulfate aerosols injected into the atmosphere by massive volcanism. The finding is important since aerosol cooling is under consideration as a way to temper global warming.
No matter how smart, well-prepared or hard-working, many college students struggle with rigorous introductory science courses because their approach to learning fails to provide a working knowledge of abstract concepts that underlie examples presented in the classroom, suggests new research from Washington University in St. Louis.
Washington University in St. Louis brain scholars will join teams from four other universities in a five-year, $7.5 million research project that aims to build and test the most comprehensive model yet of how people understand and remember events.
Dandelions are much-maligned weeds, with a paratrooper-like seed dispersal system that makes them difficult to eradicate. However, new research from an engineer at Washington University in St. Louis finds a great benefit in an unlikely place for the pesky dandelion: each of its tiny seeds can be used as a perfect pipette in the laboratory setting.
Ten Washington University scientists were each given one minute to explain why they’re scientists. This is what they said.
A team of engineers from Washington University in St. Louis has combined nanoparticles, aerosol science and locusts in new proof-of-concept research that could someday vastly improve drug delivery to the brain, making it as simple as a sniff.
Concrete is durable, inexpensive and ubiquitous. But is it sustainable? That question is being put to the test as students from the Sam Fox School Design & Visual Arts and the School of Engineering & Applied Science prepare for Solar Decathlon 2017.
Traumatic brain injury, or TBI, can be devastating and debilitating. Researchers know that the membranes separating the skull from the brain play a key role in absorbing shock and preventing damage caused during a head impact, but the details remain largely mysterious. New research from a team of engineers at Washington University in St. Louis takes a closer at this “suspension system” and the insight it could provide to prevent TBI.
We tend to assume that domestication is a one-way street and that, once domesticated, crop plants stay domesticated. A new study of rice shows, however, that different methods of farming change the evolutionary pressures on crop plants, and the plants easily “de-domesticate,” evolving to take advantage of these opportunities.
Geologist Phil Skemer, of Arts & Sciences at Washington University in St. Louis, is assembling a database of three-dimensional models of crystal structures, rock outcrops and landforms that will allow students to study geology in three dimensions.