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Slashback: Mainstreaming, Lux, Ports

Welcome to the Slashback. This time around you'll find bits about the speed of light, project Monterey, and coverage of the recently departed (alas!) San Jose LWCE. And word from Microsoft about porting Office apps to Linux gets my thumbs up -- your thumb direction may vary. [Updated by timothy with a special bonus story, 22 Aug. 0:30 GMT]

Show of hands if you think Windows is easy to use ... If I'm driving a car with a radio, I usually fiddle with the dials way down around 88-90 FM to listen to NPR, for Car Talk, All Things Considered, and the occasional science show. Now AlKini gives me another reason: "National Public Radio's "High Tech" section covers the Linux World Expo: Linux Moves to Heart of Corporate America (top item ATM).

NPR's Chris Arnold for All Things Considered: www.npr.org/ramfiles/atc/200008 16.atc.07.ram (Real Audio)"

A major issue raised by the High Tech section article is ease of use; maybe I'm crazy, but putting on Mandrake and going nuts with the included programs is pretty darn easy. Putting on 98 and NT I thought was rather a nightmare.

Well, surely all this has shown ... something! OK. Perhaps now everyone can stop submitting the story about the experiment which has been reported as showing a previously unheard of increase in the speed of light. drinkypoo writes: "It turns out that 'Not only does the speed of light remain unsurpassed, but Wang's experiment wasn't even about that.' To be specific, 'the team developed a method of manipulating the wavelengths of a beam of light, thereby altering the way it arrives at its destination. Because short wavelengths become longer and long ones become shorter, the natural fanning outward that marks a light pulse is eliminated; consequently the shape of the pulse at its destination appears the same as at its origin.' It seems that the journalistic frenzy and a NEC press release are to blame. Salon Magazine is carrying the full story here."

Reports have been greatly exaggerated. We reported a few days ago that IBM's Project Monterey had been killed. Not so, says dentar, who writes: "I am attending SCO Forum 2000, and contrary to what was published in Sm@rt-aleck Reseller, IBM is NOT ditching Monterey. It is going to be called AIX-5L. (NOT AIX-RL like the article says). The Sm@rt reseller article is very poorly researched and is pure yellow journalism. In fact, IBM is very ticked about the article."

Where are the software-release-date betting pool sites? fonixmunkee writes: "Found an interesting story on BetaNews regarding Microsoft reportedly working on porting some of their software to linux. Check it out here."

For either P.R. or experimental purposes at least, though, doesn't it seem like Microsoft will offer some Linux software soon? While there's often no accounting for corporate decision making, to ignore the large, vibrant, growing Linux market would be to ... ignore a large, vibrant and growing market. Fine by me; I never much like having my words mangled by Word, and I have never pined for Outlook.

The more numerous the laws ... werdna writes: "Counsel for Napster, Inc. just submitted their initial brief on Appeal, explaining why the preliminary injunction should be reversed. The brief sets other arguments, any one of which could be a basis for reversal.

Whatever may be said of Judge Patel's decision, she set forth her reasoning squarely, which made it possible for Mr. Boies to crisply and concisely join the issue: Whether the test for contributory infringement of an internet service will be that the services has a "mere capacity for substantial non-infringing uses" (the test adopted by the Supreme Court for VCR's), or Judge Patel's new creation of a "present primary purpose " test, in direct contravention of the Supreme Court's decision in the Betamax case. The answer to this question can have broad-sweeping impact on the internet as a whole.

Interestingly, the brief shows that the Ninth Circuit itself originally adopted the "primary purpose" test when it first reviewed the Betamax case, noting that the Supreme Court expressly rejected that argument there. It is sometimes advocacy to a judge to remind them that the District Court they are reviewing just made the same mistake they made years ago."

3 of 234 comments (clear)

  1. yeah seriously by ArchieBunker · · Score: 5

    Everyone here claims windows is the OS for idiots or the average dumb consumer, yet have trouble installing it :)

    --
    Only the State obtains its revenue by coercion. - Murray Rothbard
  2. Re:Silly Editorial Bias by FPhlyer · · Score: 5

    Your right. Slashdot is editorial biased against Windows and just about anything Microsoft. There is a "reason" for this (however "unreasonable" it may be.) Just as the Macintosh was built around a backround of "beating the enemy, IBM", Linux is kind of being built around a background of "beating the enemy, Microsoft." This makes Linux an interesting candidate for sucess. I agree, a lot of the anti-microsoft clamor that we so often hear is based more on emotion than on pure fact (what you refered to as "FUD".) I work primarily on Windows NT based workstations, and for the most part they have proven to be very stable (the biggest drawback is the numerous reboots that I have to do when installing new software.) I disagree with your statement about installing '98. I have had more problems installing '98 then with any other operating system. While not necessarily a "difficult" install, it is one that tries my patience. I find the installation Windows NT 4.0 and RedHat Linux (text mode install) to both be way more intuitive and user-friendly. My preference for Linux does not abound from a feeling that Linux is technically superior. It stims from the political side of the open source movement. I like the idea of software that is free (as in both beer and speech.)

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  3. superluminal light propagation (?) by mreece · · Score: 5

    It does seem that someone... whether NEC or reporters, I'm not sure... was a little irresponsible with the "faster-than-light" story. Even the title of the Nature article, "Gain-assisted superluminal light propagation," seems a little misleading. Although all the articles clearly indicated that this experiment was not at odds with Einsteinian relativity, none of them really explained it.

    I don't know that much about physics, but I knew something weird was happening here, and I found a little bit of explanation in the Feynman Lectures on Physics (Volume 1, Chapter 31).

    For light of frequency omega, in a material with electrons having resonant frequency omega0, the index of refraction is:

    n = 1 + (Ne^2)/(2 epsilon0 m (omega0^2 - omega^2))

    The dependence on omega shows that a material transmits light at different speeds, depending on the frequency (or, from a different point of view, the wavelength) of the light. This phenomenon is called "dispersion." Now, for some frequencies, (omega0^2 - omega^2) will be negative and n can be less than one, implying "superluminal" propagation in the sense that light of that frequency may be transmitted faster than "c", the speed of light in vacuum.

    Feynman notes that the difference in index of refraction indicates a "that the phase shift which is produced by the scattered light can be either positive or negative." However, he is careful to point out that signals themselves are not transmitted faster than c, because transmission of a signal depends on the index of refraction at multiple frequencies. The index tells the speed at which the node of the wave travels, but the node in itself can carry no information. In order to transmit information, the frequency of the wave must be varied.

    So, it appears that the idea of sending light at "faster-than-light" speeds is an old one, well understood by physicists. The theory of relativity has not been violated, and this has been known for some time. Feynman, apparently, taught it to beginning physics students at Caltech in the 1960s. News sources must have simply been attempting to make the story into something more appealing to the public. "Laws of physics break down!" But in reality, no laws have been violated, physics is fundamentally unchanged, and the net result seems to have been a confused public.

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    Matt Reece