News tagged with electrical field

Behind the dogmas of good old hydrodynamics

A new theory, which gives insights into the transport of liquid flowing along the surface under an applied electric field, was developed by a group of Russian scientists lead by Olga Vinogradova who is a ...

dateMar 26, 2015 in General Physics
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Rare atmospheric phenomenon observed

Cameras operated by the Armagh Observatory have recorded one of the very few observations from the UK and Ireland of a very rare atmospheric phenomenon known as a 'sprite'. The detection, which was made around ...

dateJul 31, 2013 in Space Exploration
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Making liquid crystals stand tall

Most liquid-crystalline displays contain rod-like molecules that quickly switch from one orientation to another when subjected to electric fields. This movement creates a shutter effect that turns light on ...

dateNov 21, 2011 in Materials Science
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Swarm's precise sense of magnetism

(Phys.org) —Although they were launched only five months ago, ESA's trio of Swarm satellites are already delivering results with a precision that took earlier missions 10 years to achieve.

dateMay 08, 2014 in Space Exploration
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Magnetic memories on the right track

Computer hard drives store data by writing magnetic information onto their surfaces. In the future, magnetic effects may also be used to improve active memory in computers, potentially eliminating the need ...

dateAug 27, 2014 in General Physics
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Researcher discusses electronic cochlear architecture

Researchers have developed an architecture and digital implementation of an electronic cochlea with an acoustic fovea and address event representation using field programmable gate arrays. Prof. Andreas Andreou of Johns Hopkins ...

dateJan 20, 2015 in Engineering
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How the sun caused an aurora this week

On the evening of Aug. 20, 2014, the International Space Station was flying past North America when it flew over the dazzling, green blue lights of an aurora. On board, astronaut Reid Wiseman captured this ...

dateAug 22, 2014 in Space Exploration
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