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Submission + - Copyright Is Destroying Historic Audio (

Mr. Suck writes: You think only "pirates" and "freeloaders" rail against current copyright laws? Well, think again — even the Library of Congress seemingly has had enough. The topic is recorded sound preservation, and in a 181-page in-depth study, the Library of Congress concludes that apart from technical difficulties, US copyright law makes it virtually impossible for anyone to perform any form of audio preservation. The painted picture is grim — very grim.

Comment Do you really need to see an evaluation? (Score 1) 629

I just ask my kids. They and their peers know exactly who the good teachers and bad teachers are. The question is, how do you use that information? In the politically perverse education system it creates unhelpful drama to ask that bad teachers be replaced or that your child be moved to a class with a better teacher.

Comment This is still NTP (Score 2, Informative) 178

Although the summary and the article itself seem to take pains not to mention it, a visit to the RADclock homepage ( will tell you that what's actually being offered here is an improved NTP client. No changes to the NTP servers, server software or NTP protocol are required or are proposed. The client improvements are in an improved filter topology (feed forward with quality assessment) and introduction of separate concepts of absolute and difference clocks optimally supporting the different ways that time is used by applications.

The Internet

Robust Timing Over the Internet 178

ChelleChelle writes "The NTP (Network Time Protocol) system for synchronizing computer clocks has been around for decades and has worked well for most general-purpose timing uses. However, new developments, such as the increasingly precise timing demands of the finance industry, are driving the need for a more precise and reliable network timing system. Julien Ridoux and Darryl Veitch from the University of Melbourne are working on such a system as part of the Radclock Project. In this article they share some of their expertise on synchronizing network clocks. The authors tackle the key challenge — taming delay variability — and provide useful guidelines for designing robust network timing algorithms."

3rd Grader Accused of Hacking Schools' Computer System 344

Gud writes "According to The Washington Post a 9-year-old was able to hack into his county's school computer network and change such things as passwords, course work, and enrollment info. From the article: 'Police say a 9-year-old McLean boy hacked into the Blackboard Learning System used by the county school system to change teachers' and staff members' passwords, change or delete course content, and change course enrollment. One of the victims was Fairfax Superintendent Jack D. Dale, according to an affidavit filed by a Fairfax detective in Fairfax Circuit Court this week. But police and school officials decided no harm, no foul. The boy did not intend to do any serious damage, and didn't, so the police withdrew and are allowing the school district to handle the half-grown hacker.'"

Comment Re:Same heat flow (Score 4, Insightful) 82

You are right - you need to remove exactly as much heat as the equipment is generating. The energy savings with this scheme is due to the fact efficiency of chillers is lowest when asked to produce coldest output. Traditional data centers keep the hot parts cold by keeping everything very cold. Efficiency is improved if you can run your chiller at a higher output temperature and compensate for the reduced effectiveness of the warmer air by directing it where it is most needed.

Comment Re:Tethering (Score 1) 555

You don't have to accept conventional wisdom. Online coverage maps are available -, Both AT&T and T-Mobile rely on "partners" for rural coverage. From the looks of the maps, they're largely using the same partners. There's no extra charge for these areas on either network.

Comment Re:File size (Score 1) 291

Another more common example of this issue is the artifacts potentially introduced when an image is resized (resampled) - different resampling algorithms have differing quality.

A potentially intractable aspect of this problem is that there is no reference image supplied - your proposed algorithms have nothing concrete to be scored against so you have no way to objectively pick the best one.

Comment Upgrades are already done for you (Score 1) 524

Plain Cat5 has been deprecated and difficult to find these days. Cat5e is what you buy and install.

Both 100 Mb and Gb Ethernet were designed for Cat5. If you have true Cat5 it should work and continue to work.

100 Mb Ethernet does require better cable than 10 Mb Ethernet. Gigabit Ethernet uses the same cable as 100 Mb.

It is a common misconception that Gb Ethernet requires higher bandwidth cabling. Gb Ethernet gets its speed by using more wires (all 4 pairs are used), using the wires in both directions simultaneously and through more dense encoding. The carrier signals for both Gb and 100 Mb Ethernet are 125 Mhz.

Advanced digital signal processing in Gb interfaces actually makes them more tolerant of sub-optimal cabling than the less sophisticated 100 Mb.

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