Archive: 16/09/2005

Arctic sea ice may be at 'tipping point'

Arctic ice melting may have accelerated to a "tipping point" that will produce a vicious cycle of melting and heating, U.S. scientists say.

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NASA to replace shuttle

NASA's plan to replace the space shuttle with a spacecraft to take astronauts to the moon and Mars has been approved, U.S. officials said.

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Delivering on digital content’s full potential

The hardware and software developed by a European project aims to unleash the full potential of digital media by offering the secure creation, delivery and consumption of audiovisual media across a wide range of hybrid networks ...

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New trigonometry is a sign of the times

Mathematics students have cause to celebrate. A University of New South Wales academic, Dr Norman Wildberger, has rewritten the arcane rules of trigonometry and eliminated sines, cosines and tangents from the trigonometric ...

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Solar Minimum Explodes

Just one week ago, on Sept. 7th, a huge sunspot rounded the sun's eastern limb. As soon as it appeared, it exploded, producing one of the brightest x-ray solar flares of the Space Age. In the days that followed, the growing ...

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Lab-on-a-chip tests ready for clinical testing

To the naked eye, it looks like an ordinary microscope slide - a small transparent rectangle with hairline tracings running through it. It's hard to believe this microfluidic chip, made of polymer and glass, is poised to ...

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NASA Research Finds Green Sand Crystals Are In Comet Tempel 1

Green sand found on the big island of Hawaii resembles olivine crystals in the icy interior of comet Tempel 1, according to a NASA astrophysicist. Scientists revealed that they detected green silicate crystals (olivine) in ...

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The Two Moons Of Mars As Seen From Mars

Taking advantage of extra solar energy collected during the day, NASA's Mars Exploration Rover Spirit settled in for an evening of stargazing, photographing the two moons of Mars as they crossed the night sky.

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Asteroids Caused The Early Inner Solar System Cataclysm

University of Arizona and Japanese scientists are convinced that evidence at last settles decades-long arguments about what objects bombarded the early inner solar system in a cataclysm 3.9 billion years ago.

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Study charts origins of fear memory

A team of researchers led by the University of Toronto has charted how and where a painful event becomes permanently etched in the brain. The researchers said their discovery has treatment implications for pain-related emotional ...

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