Tag Archives: Physics

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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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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Forecasting steam-burst eruptions

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

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Lab experiments mimic the origin and growth of astrophysical magnetic fields

A turbulent, laser-generated plasma can amplify magnetic fields to cosmic scales. Continue reading

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Fluid dynamics explains ancient organism behavior

Nonlinear equations establish how long-extinct marine creatures moved and fed. Continue reading

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Physical Model of Skull Growth

A model predicts skull growth patterns based on mechanical effects, rather than biology, and could help surgeons treating patients with head growth problems. Continue reading

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Making Shear Waves for Ultrasonic Imaging

New filter allows shear waves to be produced efficiently, which could lead to higher resolution ultrasound images. Read more in Continue reading

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California’s recent weather extremes

A planetary-scale pattern of atmospheric waves may be responsible for California’s droughts and floods. Continue reading

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