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Upside-down lightning strikes

Upward lightning strikes initiate on the ground and head skyward. These discharges, which usually begin at the top of tall and slender structures, pose a real risk for wind turbines. An EPFL study analyzes the mechanisms ...

dateDec 11, 2015 in Earth Sciences
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What are the benefits of volcanoes?

Volcanoes are renowned for their destructive power. In fact, there are few forces of nature that rival their sheer, awesome might, or have left as big of impact on the human psyche. Who hasn't heard of tales of Mt. Vesuvius ...

dateMar 21, 2016 in Earth Sciences
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How a new wave of digital activists is changing society

Digital activism has transformed political protest in the last two decades. Smartphones and the internet have changed the way political events, protests and movements are organised, helping to mobilise thousands of new supporters ...

dateApr 12, 2016 in Internet
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