Columbia University

Crow or raven? New birdsnap app can help

Researchers at Columbia Engineering, led by Computer Science Professor Peter Belhumeur, have taken bird-watching to a new level. Using computer vision and machine learning techniques, they have developed ...

dateMay 28, 2014 in Computer Sciences
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When the Sahara turned to sand

The Sahara wasn't always a desert. Trees and grasslands dominated the landscape from roughly 10,000 years ago to 5,000 years ago. Then, abruptly, the climate changed, and north Africa began to dry out.

dateNov 11, 2013 in Earth Sciences
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Unforeseen dangers in a global food system

New York City Mayor Bill de Blasio's claim during a recent blizzard that food delivery bikes were not emergency vehicles caused a small disruption in the City's normally fast, abundant and inexpensive access ...

dateMay 01, 2015 in Environment
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A Texas-sized block of ice

The first dedicated Antarctic Icepod mission was flown out across the center of the Ross Ice Shelf. Ice shelves are thick floating extensions of the ice sheet that form as the ice flows off the continent ...

dateDec 05, 2014 in Earth Sciences
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What songbirds can teach us about the brain

(PhysOrg.com) -- Professor Sarah Woolley does research on males who mate for life and help out around the home. If you asked where these creatures can be found, she might direct your attention outdoors.

dateFeb 23, 2011 in Neuroscience
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