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Science

Israeli Scientists Freeze Water By Warming It 165

Posted by timothy from the you-must-become-the-frozen-water dept.
ccktech writes "As reported by NPR and Chemistry world, the journal Science has a paper by David Ehre, Etay Lavert, Meir Lahav, and Igor Lubomirsky [note: abstract online; payment required to read the full paper] of Israel's Weizmann Institute, who have figured out a way to freeze pure water by warming it up. The trick is that pure water has different freezing points depending on the electrical charge of the surface it resides on. They found out that a negatively charged surface causes water to freeze at a lower temperature than a positively charged surface. By putting water on the pyroelectric material Lithium Tantalate, which has a negative charge when cooler but a positive change when warmer; water would remain a liquid down to -17 degrees C., and then freeze when the substrate and water were warmed up and the charge changed to positive, where water freezes at -7 degrees C."

Comment iSCSI (Score 1) 272

by mdaitc (#29450241) Attached to: Best Backup Server Option For University TV Station
get an iSCSI device:
http://www.promise.com/product/product_detail_eng.asp?segment=undefined&product_id=226 The Promise VessRAID series is currently available through distribution. Pricing starts at $1,899 for an 8 bay system and ranges to $3,099 for a 16 bay system. A fully populated 16 bay subsystem costs less than 26 cents per gigabyte, using enterprise-class 7200 RPM 2TB hard disk drives.
so basically, $2.6k for a unit @CDW, 16*$300 for 2TB hard drives (newegg)
total $5k for 32TB raw.
Government

British Spy Agency Searches For Real-Life 'Q' 79

Posted by Soulskill from the grow-up-double-oh-seven dept.
suraj.sun writes with this quote from the Associated Press:"Britain's domestic spy agency — MI5 — is hunting for its very own 'Q,' of sorts. MI6's sister organization, which carries out surveillance on terror suspects inside Britain and gives security advice to the government, is searching for someone to lead its scientific work. Projects could include everything from developing counterterrorism technology to tackling a biological or chemical attack. 'Looking for a chief scientific adviser to lead and coordinate the scientific work of the security service so that the service continues to be supported by excellent science and technology advice,' MI5's Web site ad reads. MI5 has long had a roster of scientific staff tasked with developing high-tech gadgets, but an official said the service now wants a high-profile figure to lead pioneering work in technology and science. The adviser's work will focus chiefly on creating sophisticated new tools to help security service officers carry out surveillance and analysis work, said a government security official, who requested anonymity to discuss the work of MI5."
Encryption

F5 Fires Back On Open Source SSL Accelerator 120

Posted by timothy from the first-name-basis dept.
Random Feature writes "In response to Build an Open Source SSL Accelerator, in which o3 magazine detailed how to build a solution comparable to an F5 BIG-IP 6900 on the cheap, F5 Fires Back claiming it's not as cheap as it appears and pointing out the potential performance implications of a 'cobbled together set of components designed to mimic similar functionality.' The discussion on the performance of the Open Source solution based on Opteron RSA operation processing capabilities brings into question the validity of the 'more SSL TPS for cheaper' argument presented by o3."
Networking

Submission + - tcpdump.org

Submitted by Anonymous Coward
An anonymous reader writes: What has happened to tcpdump.org? Only the google caches seems to be around. Looks like their name server is gone.... anyone know the story?
Space

Submission + - Stephen Hawking says universe created from nothing

Submitted by
mr_3ntropy
mr_3ntropy writes: "Speaking to a sold out crowd at the Berkeley Physics Oppenheimer Lecture, Hawking said yesterday that he now believes the universe spontaneously popped into existence from nothing. He said more work is needed to prove this but we have time because "Eternity is a very long time, especially towards the end."
Webcast available here.(Realplayer or Real Alternative required)
This quote is at the very end of the lecture A transcript would have been helpful, but I couldn't find one available yet.
Very difficult to grasp and accept this idea, but interesting for those of us who constantly wonder about the origins of the universe."
Red Hat Software

Submission + - Red Hat Enterprise Linux 5 Released

Submitted by Anonymous Coward
An anonymous reader writes: Red Hat announces availability of Red Hat Enterprise Linux 5, the Company's most significant collaboration with customers to date; unveils plans to model services and partnerships using same open, collaborative philosophy.
Portables

Submission + - Using a laptop under bright sunlight

Submitted by
Phyllis Johnston
Phyllis Johnston writes: "Are you an outdoors geek? Well, I am. My new job allows me to spend my days away hacking in a comfortable outdoors space. Winter is gone and we are in the South, so the sunlight will get pretty intense soon enough. I have a problem, though: how can one use a laptop for extended periods of time under strong sunlight without killing one's eyes? I have tried a bunch of old antiglare filters, yet they do not work well with sunlight. I also found references online to hacks such as this one, but I don't think I would be able to focus in a public space while using such a cover. Have you found a way to be productive doing computer work outdoors in bright days? How did you do it?"

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