### Unraveling the Matrix

A new way of analyzing grids of numbers known as matrices could improve signal-processing applications and data-compression schemes.

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A new way of analyzing grids of numbers known as matrices could improve signal-processing applications and data-compression schemes.

Jul 29, 2010
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Mathematics

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Part of a 1929 prediction by physicist Hermann Weyl—of a kind of massless particle that features a singular point in its energy spectrum called the "Weyl point,"—has finally been confirmed by direct observation for the ...

Jul 16, 2015
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Condensed Matter

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Just as a terrestrial globe cannot be flattened without distorting the distances, it seemed impossible to visualize abstract mathematical objects called flat tori in ordinary three-dimensional space. However, a French team ...

Apr 26, 2012
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Mathematics

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(PhysOrg.com) -- A groundbreaking new equation developed in part by researchers at the University of Michigan could do for organic semiconductors what the Shockley ideal diode equation did for inorganic semiconductors: help ...

Oct 20, 2010
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Condensed Matter

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A team of researchers from Pompeu Fabra University (UPF, Spain) has developed a system to identify common patterns in versions of songs, which will help to quantify the similarity of musical pieces. The technique, which appears ...

Oct 22, 2009
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General Physics

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The world's eyes are on the Upper Atmosphere Research Satellite (UARS) headed toward re-entry into Earth's atmosphere. The satellite is currently predicted to re-enter sometime on the afternoon of Friday, September 23, 2011, ...

Sep 23, 2011
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Space Exploration

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(PhysOrg.com) -- Remote-sensing scientists call a satellite image that captures an entire hemisphere of the Earth in one view a "full-disk" image. The delivery of the first full-disk image from a newly launched weather satellite ...

Aug 21, 2009
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Earth Sciences

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Inspired by anomalies that arise in certain mathematical equations, researchers have demonstrated a laser system that paradoxically turns off when more power is added rather than becoming continuously brighter.

Jun 17, 2014
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Optics & Photonics

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(Phys.org) —Using an instrument on NASA's Solar Dynamics Observatory, called the Helioseismic and Magnetic Imager, or HMI, scientists have overturned previous notions of how the sun's writhing insides move from equator ...

Aug 28, 2013
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Space Exploration

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