Archive: 11/05/2005

Circuit-breaker detects all types of fault currents

The new universal-current-sensitive Type B residual-current circuit-breaker (r.c.c.b.) from Siemens Automation and Drives (A&D) can detect pulsating and smooth DC fault currents as well as sinusoidal AC fault currents. These ...

dateMay 11, 2005 in
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Freescale targets consumer applications with three-axis sensor

As portable electronics increase in functionality and fuel the demand for data drive storage, designers are seeking improved protection systems that use less board space. The MMA7260Q sensor now available from Freescale Semiconductor ...

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Scientists levitate heaviest elements with help from cold oxygen

Scientists at the University of Nottingham have successfully levitated diamond and some of the heaviest elements, including lead and platinum. Using liquid oxygen to increase the buoyancy created by a specially designed superconducting ...

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Whimpers from the Sun?

Solar physicists have observed the smallest ever coronal mass ejection (CME) - a type of explosion where plasma from the Sun is thrown out into space, sometimes striking the Earth and damaging orbiting satellites. The observation ...

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Cassini finds new Saturn moon that makes waves

In a spectacular kick-off to its first season of prime ring viewing, which began last month, the Cassini spacecraft has confirmed earlier suspicions of an unseen moon hidden in a gap in Saturn's outer A ring. A new image ...

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Researchers build a robot that can reproduce

One of the dreams of both science fiction writers and practical robot builders has been realized, at least on a simple level: Cornell University researchers have created a machine that can build copies of itself. Admittedly ...

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New mathematical model better describes transistor behavior

Penn State and Philips researchers have merged the best features of their respective approaches to produce a new mathematical model that describes the behavior of the MOS transistor in a wide class of integrated circuits ...

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