Chickens can’t speak, but they can definitely make themselves heard. Most people who have visited a poultry farm will recall chicken vocalization – the technical term for clucking and squawking – as a memorable part of the experience. (more…)
An odd, previously unseen landform could provide a window into the geological history of Mars, according to new research by University of Washington geologists. (more…)
A research team at the Georgia Tech Research Institute (GTRI) has developed a software tool that enables users to perform in-depth analysis of modeling and simulation data, then visualize the results onscreen. The new data analysis and visualization tool offers improved ease of use compared to similar tools, the researchers say, and could be readily adapted for use with existing data sets in a variety of disciplines. (more…)
Washington, D.C. — Scientists have long speculated about why there is a large change in the strength of rocks that lie at the boundary between two layers immediately under Earth’s crust: the lithosphere and underlying asthenosphere. Understanding this boundary is central to our knowledge of plate tectonics and thus the formation and evolution of our planet as we know it today. A new technique for observing this transition, particularly in the portion of Earth’s mantle that lies beneath the Pacific Ocean basin, has led Carnegie and NASA Goddard scientist Nick Schmerr to new insight on the origins of the lithosphere and asthenosphere. His work is published March 23 in Science. (more…)
‘Wonder material’ may hold key to fast, inexpensive genetic sequencing
Look at the tip of that old pencil in your desk drawer, and what you’ll see are layers of graphite that are thousands of atoms thick. Use the pencil to draw a line on a piece of paper, and the mark you’ll see on the page is made up of hundreds of one-atom layers.
But when scientists found a way—using, essentially, a piece of ordinary sticky tape—to peel off a layer of graphite that was just a single atom thick, they called the two-dimensional material graphene and, in 2010, won the Nobel Prize in physics for the discovery. (more…)
Aerobic exercise triggers a reward system in the body of long-distance running creatures like humans and dogs, but not ferrets, a study led by UA anthropologist David Raichlen suggests.
In the last century, something unexpected happened: Humans became sedentary. We traded in our active lifestyles for a more immobile existence.
But these were not the conditions under which we evolved – our hunter-gatherer predecessors were long-distance endurance athletes. (more…)
As a professor of astronomy and physics, Priyamvada Natarajan doesn’t balk at taking risks. She has modeled the upper limits of “monster” black holes and analyzed the consistency of dark matter. As a theorist, she notes, intellectual risk is par for the course. (more…)
UCLA researchers are now able to peer deep within the world’s tiniest structures to create three-dimensional images of individual atoms and their positions. Their research, published March 22 in the journal Nature, presents a new method for directly measuring the atomic structure of nanomaterials. (more…)
