Blog Archives

Taking the twinkle out of stars

Adaptive optics at Paranal Observatory give satellite-quality images from surface of Earth. Continue reading

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Size-sorted sand creates uncommon length scale in windblown formations

A combination of grain-size distribution and critical wind speed is responsible for megaripples. Continue reading

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Friction remembers its past

Experiments show that frictional interfaces age and bounce back. Continue reading

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Quieting a room with metamaterial wall panels

Specially designed surface sculpts sound waves in a room. Continue reading

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New tools for forecasting steam-blast eruptions

Satellite data can pinpoint predictors of future explosive activity. Read more in Physics Today…

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How to build megaripples out of sand

Sorting of grains by steady winds produces rare formations larger than ripples but smaller than dunes. Continue reading

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A Kilauea eruption like no other

The famously active Hawaiian volcano typically erupts at existing fissures and triggers minor earthquakes. This latest event has no such limitations. Continue reading

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Forecasting steam-burst eruptions

Satellite data can pinpoint the locations of potentially life-threatening geothermal events.   Continue reading

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Mine Social Media Posts to Predict Flu

Podcast on my article! Researchers used Twitter searches for nonflu words associated with behavior to predict flu outbreaks two weeks in advance. Continue reading

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An eruption mechanism for underwater volcanoes

A new model explains how some lava that rises from the seafloor eventually sinks back down.   Continue reading

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