20/04/2009

Solar sigmoids explained

(PhysOrg.com) -- 'Sigmoids' are S-shaped structures found in the outer atmosphere of the Sun (the corona), seen with X-ray telescopes and thought to be a crucial part of explosive events like solar flares. Now a group of ...

Solar systems around dead Suns?

(PhysOrg.com) -- Using NASA’s Spitzer Space Telescope, an international team of astronomers have found that at least 1 in 100 white dwarf stars show evidence of orbiting asteroids and rocky planets, suggesting these objects ...

HARPS-NEF to comb Kepler targets for new Earths

Astronomers have announced plans to build an ultra-stable, high-precision spectrograph for the Science and Technology Facilities Council's 4.2-m William Herschel Telescope (WHT - part of the Isaac Newton Group or ING on La ...

Saving time -- and money -- with semantic design

Whether designing the sleek body of a new Ferrari or laying out a mould for its brake casings, engineers spend an inordinate amount of time searching through design data. A new semantic engineering environment developed by ...

India's Tata Consultancy Services Q4 net profit up 4.6 pct

India's largest software exporter Tata Consultancy Services Monday said net profit rose 4.61 percent in the fourth quarter, hit by lower fees and cuts in technology spending due to the global economic slowdown.

Cut-rate prepaid plans shake up wireless industry

(AP) -- As wireless carriers start reporting first-quarter results this week, investors will be looking at the effects of some spectacular price cuts for prepaid cell phone service.

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