Brain Food

KNAU/Bonnie Stevens

If a tree falls in the forest and no one's there to hear, does it make a sound? It definitely makes sound waves, according to wood scientist Dave Auty of Northern Arizona University. Auty uses "acoustic evaluation technology", or sound wave probes, to determine the stiffness and quality of a tree before it's harvested. It's a technique new to northern Arizona forests.


Courtesy of thetreecenter.com

Voracious Japanese beetles are becoming frequent fliers on airlines traveling from the East Coast to the West Coast. And that’s wreaking havoc on hundreds of species of plants. Ecosystem scientist Bruce Hungate is trying to find out how the beetles are getting their boarding passes. 


Wikipedia

Glyptodonts were giant armadillo-like creatures that went extinct with the last Ice Age. But not before they traveled across the land bridge from South America; some ending up in the Arizona desert near Safford. That's where scientists recently found a pair of their enormous skeletons, remarkably preserved. 


NAU/Jackie Thomas

Scientists are trying to project what mule deer on the Kaibab Plateau might need in order to survive a changing climate. The herd lives on a forested "sky island" - an elevated area surrounded by different low-land environments. If the future holds warmer, drier conditions, how would food sources and hiding places change for the deer? That's what Spatial Ecologist Jackie Thomas is trying to find out.

prx.org

LIGO technology is enabling astronomers to listen to the sounds of the universe through gravitational waves, ripples in the fabric of time and space. 


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