cyklo - Slashdot User

Comment Re:Water sublimating (Score 4, Informative) 364

by cyklo on Sunday June 22, 2008 @07:27PM (#23898133) Attached to: Water Ice On Mars

Indeed it does, and it's probably better explained using a triple point diagram:

http://www.chemistrydaily.com/chemistry/Image:Phase-diag.png

On earth (at higher pressures), increasing temperature goes from the solid, to liquid, and then to gas phases (the triple-point in the middle is at zero degress celcius)

The lower atmospheric pressure on Mars (~1% of sea-level earth pressure) means that you go straight from solid to gas. In fact, the liquid part is actually impossible (IANAChemist) unless you increase the pressure sufficiently.

US To Shoot Down Dying Satellite 429

Posted by Zonk on Thursday February 14, 2008 @03:30PM from the we-who-may-be-about-to-reenter-orbit-salute-you dept.

A user writes "US officials say that the Pentagon is planning to shoot down a broken spy satellite expected to hit the Earth in early March. We discussed the device's decaying orbit late last month. The Associated Press has learned that the option preferred by the Bush administration will be to fire a missile from a U.S. Navy cruiser, and shoot down the satellite before it enters Earth's atmosphere. 'A key concern ... was the debris created by Chinese satellite's destruction -- and that will also be a focus now, as the U.S. determines exactly when and under what circumstances to shoot down its errant satellite. The military will have to choose a time and a location that will avoid to the greatest degree any damage to other satellites in the sky. Also, there is the possibility that large pieces could remain, and either stay in orbit where they can collide with other satellites or possibly fall to Earth.'"

PC World Tests Final Version of Vista SP1 210

Posted by Zonk on Thursday February 07, 2008 @04:18PM from the could-be-worse dept.

Mac writes "PC World ran the final version of Windows Vista SP1 through a first set of tests last night. Here's the bottom line: 'File copying, one of the main performance-related complaints from Vista users, was significantly faster. But other tests showed little improvement and, in two tests, our experience was actually a little better without the service pack installed than with it.'"

Kororaa Accused of Violating GPL 843

Posted by Zonk on Sunday May 14, 2006 @05:19PM from the penguin-is-confused dept.

AlanS2002 writes "The Kororaa Project, a pre-configured binary install method for Gentoo Linux which bundles nVidia's and ATI binary drivers in its Kororaa Xgl Live CD , has put its Live CD on hold after being accused of violating the GPL. The issue appears to be the distribution of the Linux Kernel and nVidia's/ATI binary drivers together. When the binary drivers are built the GPL'ed code is included in the binary result, which is a violation."

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