Scientists reveal 'woodquakes'

The structural properties of brittle materials like rock or ceramic, such as cracking under stress, have long been studied in detail, providing insight into avalanches, earthquakes and landslides. Wood and its response to ...

Spotting the elephant not in the room

An automated thermal detection system that can discern wild elephants from background and other animals in infrared images could save lives in parts of the world where the animals roam free and often enter villages and other ...

Engineering team invents a camera that powers itself

A research team led by Shree K. Nayar, T.C. Chang Professor of Computer Science at Columbia Engineering, has invented a prototype video camera that is the first to be fully self-powered—it can produce an image each second, ...

Moves to automate identification of Saimaa ringed seals

Moves are being made to automate the identification of Saimaa ringed seals. This would bring new kinds of real-time information on how the extremely endangered species behaves, the movements of individual seals, and what ...

Forging a photo is easy, but how do you spot a fake?

Faking photographs is not a new phenomenon. The Cottingley Fairies seemed convincing to some in 1917, just as the images recently broadcast on Russian television, purporting to be satellite images showing the MH17 airliner ...

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