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Carbon nanotube speakers play music with heat

Troy Bouman reaches over, presses play, and the loudspeaker sitting on the desk starts playing the university fight song. But this is no ordinary loudspeaker. This is a carbon nanotube transducer—and it makes sound with ...

dateJul 28, 2015 in Nanomaterials
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Predicting the shape of river deltas

The Mississippi River delta is a rich ecosystem of barrier islands, estuaries, and wetlands that's home to a diverse mix of wildlife—as well as more than 2 million people. Over the past few decades, the shape of the delta ...

dateJul 22, 2015 in Earth Sciences
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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 ...

dateJul 17, 2015 in Condensed Matter
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Bringing back the magic in metamaterials

A single drop of blood is teeming with microorganisms—imagine if we could see them, and even nanometer-sized viruses, with the naked eye. That's a real possibility with what scientists call a "perfect lens." The lens hasn't ...

dateJul 17, 2015 in Optics & Photonics
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Researchers show new Ice Age may begin by 2030

The arrival of intense cold similar to the weather that raged during the "Little Ice Age", which froze the world during the 17th century and in the beginning of the 18th century, is expected in the years 2030 to 2040. These ...

dateJul 17, 2015 in Earth Sciences
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