Slashdot Mirror


Slashback: Space, Smallness, Pigeons

Slashback tonight brings you more details of avian transmission; some killer web pages for the bandwidth impaired (Merlin, anyone?); belated congratulations to Peter de Jager; an updated FAQ for the Simputer; and a geographic correction for anyone into The Gathering.

5k is more than you think. Drywall writes: "So after much deliberation (and announcement deadline pushed back a few days), the winners of the 2001 5k contest have been announced. It's interesting to note that the judges' assessments were in some cases very different from those of the contest viewers. Check it out."

They took care of the pigeon technicalities, we took care of the computer technicalities. Loco3KGT writes: "My article on the recent RFC1149 test is up on linux.com. It's an interview with Vegard Engen of the Bergen Linux Users Group, your typical followup type thing. Might be worth the read to a few."

Sheerest understatement. Good details here for anyone wishing to provide a nice high-latency, low-bandwidth, high-poop connection between not-so-distant places.

Still fits in your hand. There were some questions raised about the Simputer handheld device mentioned on Slashdot a few weeks ago, now metlin writes: "The Simputer FAQ has been updated, and this time around a few questions that the Slashdot commnunity maybe interested have been added. Some of these include GPLing the design, USB capabilities, IML and some more stuff regarding Linux & the Simputer. Check it out!"

Dave, what sort of meeting is this? Dave? An Anonymous Coward references this review of the Making of 2001, (and perhaps ought also mention Cliff Lampe's review of Kubrick's 2001: A Triple Allegory as well), then writes: "On May 26th ... http://www.isdc2001.org/. 'nuf said." Well, perhaps not quite 'nuf. This is the International Space Development Conference's 2001 meeting, and it's coming up soon -- May 24-28th. The submitter was apparently interested in the 2001: A Space Oddysey Banquet (#5 on this page), which sounds like an interesting dinner, which will be featuring no ham sandwiches (for authenticity).

Let us now praise famous men. Randy Rathbun writes "I just got a email from Peter de Jager, who, as you may or may not recall, is the guy who got all the bad Y2K press because he did his job getting the world to recognize there was a problem. Well, he is finally getting some well-deserved recognition from the Canadian Information Processing Society."

According to an email Rathbun quotes, de Jager says: "Although I've been thanked privately by thousands of people in IT, this is my first formal & public thanks for my work in Y2K and I'm as 'pleased as punch' to use an old Irish expression."

Hear, hear -- (many of) the Y2K enthusiasts deserve congratulations for speaking their mind and contributing greatly to the smooth transition that actually took place. (Anyone besides me have lots of water on hand that New Year's Eve?)

Gee, look how many colors are on this map! After I erroneously described giant game-fest The Gathering as a Dutch event, Rune Kristian Viken of the Gathering's crew pointed out that I wasn't even all that close. An apology to both countries, hope no one buys tickets to the wrong airport ;)

Viken wrote:

"The Gathering is a _NORWEGIAN_ Computer Party not a Dutch one. Its at Hamar / Norway - and nowhere in the Netherlands.

Sigh. Earlier in this century people thought that a red-white'n blue flag indicated a ship from the netherlands out of the colors. Now people think that The Gathering is a Dutch party.

*Sigh*. No respect for the Scandinavian DemoScene from you younglings! ;)

"

7 of 55 comments (clear)

  1. The SGPL is Frightening by Adrian+Lopez · · Score: 4
    Looking at the Simputer website I see lots of scary things relating to the so-called SGPL.
    Any individual or company can download the hardware specification, PCB layout details, the bill of materials, etc., henceforth called "Specifications" free of charge. The act of doing so binds the individual or company to the SGPL.
    What they're saying here is that downloading the specs implies that the person downloading these agrees to the terms of the SGPL. They treat it as binding when people haven't signed anything. That seems neither fair nor legal.
    The problem we faced in coming up with a suitable protection model for the Simputer is the fact that being essential a hardware specification, the elements sought to be protected were not strictly copyrightable. Consequently, protection mechanisms such as the copyleft principle used in the GNU GPL do not fully apply. It was therefore important that the Simputer GPL utilised a stronger mix of copyright and contract than was used by free software licenses. Ultimately, this is the trade-off. The Simputer GPL, in order to protect the unique intellectual property of the Simputer had to accommodate the shortcomings of trade secret law.

    Having said that, we do not feel that the Simputer GPL is any less enforceable than other more traditional GPL's. For one, every person who uses the specification is deemed to have read and agreed to the SGPL. While we do make the transmitter of the information liable to disclose the specification along with the license, it would not be a open for a recipient to say that he/she is not bound by the terms of the SGPL merely because the version he/she received from an unnamed third party did not include the SGPL. The only exception to this liability is someone who, using clean room operating procedures, comes up with something similar to the Simputer - but that is a problem that all patent holders face as well and we have no special solution to suggest.

    Finally, since the SGPL contains a mix of protections under copyright, patent trademark and trade secret law, we feel that when all these components and brought into play simultaneously the SGPL will achieve its goal of protecting the Simputer specifications appropriately.

    They use the SGPL to protect elements of the Simputer's design that normally get no protection under the law. Again, it's because the mere act of downloading the specs binds you to the SGPL's restrictions (according to the Simputer people).

    The SGPL's wording is often similar to that of the GNU GPL. The names are also very similar. It seems to me the Simputer people are trying to cash in on the GNU GPL's success. I believe Richard Stallman should be notified of this.

    --
    "In prison you just have to shut your eyes and take it. Here you have to shut your eyes and give it."
  2. Pigeon protocol is impractical by Ukab+the+Great · · Score: 4

    Pigeon overhead is nasty. Too many "packets" are dropped

  3. Re:Pixxxel Chix by Dancin_Santa · · Score: 4

    It really helps if you squint really hard.

    (It helps when dealing with Ms. Claus, too... :0)

    Dancin Santa

  4. truth about the millenium by reposter · · Score: 4

    When does the Millennium Begin?

    The answer is if you use the Gregorian Calendar and start the first
    millennium with the year 1 AD then the third millennium begins with the year
    2001 AD. But if you use the Common Era Calendar, in which years are numbered
    -2, -1, 0, 1, 2, ..., and you begin the first millennium with the year 0 CE
    then the third millennium begins with the year 2000 CE. You have a choice. And
    if you opt for the Common Era Calendar you no longer have to put up with the
    smug assertion that "there was no year zero (so the new millennium begins in
    2001)". There was no year zero when Pope Gregory XIII introduced the Gregorian
    Calendar in the 16th Century but there certainly is one now, and the new
    millennium in the Common Era Calendar begins in 2000 CE.

    The number zero was introduced into westerm circles, along with the
    Arabic numerals we use to day, in the 13th century, but the church refused to
    allow them to be used, simply on the grounds that they were invented by Muslims.
    However, zero and the numbering system we use today did eventually make it into
    acceptance by the 16th century, and greatly simplified mathematics in Europe.
    We can't really blame the church for 2000/2001 issue, because the current year
    numbering system that we used (2 BC, 1 BC, 1 AD, ...) was originally designed by
    a monk in either the 7th or 8th century, before we even heard of the Arabic
    numbering system or zero.

    Roman numerals do not have a figure designating zero, and treating zero
    as a number on an equal footing with other numbers was not common in the 6th
    century when our present year reckoning was established by Dionysius Exiguus.
    Dionysius let the year AD 1 start one week after what he believed to be Jesus'
    birthday. Therefore, AD 1 follows immediately after 1 BC with no intervening
    year zero. So a person who was born in 10 BC and died in AD 10, would have died
    at the age of 19, not 20. Furthermore, Dionysius' calculations were wrong. The
    Gospel of Matthew tells us that Jesus was born under the reign of King Herod the
    Great, and he died in 4 BC. It is likely that Jesus was actually born around 7
    BC. The date of his birth is unknown; it may or may not be 25 December.

    Since the "Anno Domini" system did not come into effect until the 6th
    Century A.D. it is artificial to speak of the years 1 A.D., 100 A.D., etc.,
    because people living at that time knew nothing of this system of numbering
    years (since it had not then been invented yet). Furthermore the Romans in the
    reign of Augustus (27 B.C. to 14 A.D.) were somewhat lax in the proper
    observance of leap years. But we can project backwards (and forwards) from 525
    A.D. by representing the succession of years by the series of natural numbers:
    1, 2, 3, ..., 100, ..., 500, ... Then we can say that the period from 1 A.D.
    through 10 A.D. (including both years) was a period of ten years (since there
    are ten numbers in the series 1, 2, ..., 10). Similarly from 1 A.D. through 100
    A.D. is a period of 100 years, and from 1 A.D. to 1000 A.D. is a period of 1000
    years.

    The word "millennium" means "a period of 1000 years" so we can conclude
    that the period from 1 A.D. through 1000 A.D. (including both years) constituted
    one millennium, and in fact, the first millennium of the Christian era. So the
    second millennium of the Christian era begins with the year 1001 A.D., or more
    exactly, on 1st January 1001 A.D. And the third millennium of the Christian era
    begins on 1st January 2001 A.D. So for Christians - or at least, for all who
    adhere to the Christian system of numbering years - the answer is clear: The new
    millennium begins on 1st January 2001 A.D. However, this is not the end of the
    matter, because the "Anno Domini" system of year numbering has a major flaw,
    namely, it may be OK for years since 1 A.D., but what happens when we consider
    earlier years? As is well known, such years are numbered in reverse order, and
    designated as years "Before Christ". Thus the year immediately before 1 A.D. is
    designated 1 B.C., and the series extends backwards: 2 B.C., 3 B.C., etc.

    With the rise of modern scholarship, particularly astronomy, archaeology
    and chronological studies, this system was felt to be inadequate for scientific
    purposes. For one thing it does not lend itself to calculation using dates. For
    example (a very simple one), how many years elapsed between 1st January 6 B.C.
    and 1st January 6 A.D.? Twelve years? No. The answer is not obvious (and still
    less obvious if we consider longer periods such as that from 535 B.C. to 481
    A.D.). So astronomers and chronologists decided to number years by representing
    the succession of years by the doubly-infinite series of positive and negative
    numbers: ..., -3, -2, -1, 0, 1, 2, 3 ... This is called the "astronomical"
    system of numbering years. In this system years from 1 onwards have the same
    numbers as years A.D. (year 1 = 1 A.D., and so on), but years B.C. are related
    as follows: The year 0 in the astronomical system is the year 1 B.C., and the
    year -n in the astronomical system is the year n+1 B.C. (for n = 1, 2, 3, ...).
    Conversely, the year n B.C. is the year -(n-1) in the astronomical system. Thus
    year -1 = 2 B.C., year -2 = 3 B.C., and so on.

    A millennium is, by definition, a period of 1000 years. But it is no
    part of the definition that a millennium must begin or end with a particular
    year number. If we adopt the astronomical year numbering system then we can
    begin the "first" millennium with year 0 just as well as with year 1. Strictly
    speaking, there is no first millennium in the astronomical system, since it
    simply numbers years by mapping them onto the sequence ..., -2, -1, 0, 1, 2,
    ..., and we are free to begin millennia where we think fit. It is thus clear
    that the answer to the question as to when the new millennium begins depends on
    which system of year-numbering one chooses to use. Christians may prefer to stay
    with the system of years "Anno Domini", in which case they must answer that the
    new millennium begins on 1st January 2001 A.D. Scientists and others who prefer
    a more rational and useful system of numbering years may prefer to adopt
    explicitly the astronomical system. In this case they are free to begin
    millennia from the years 1, 1001, 2001, and so on (in which case the third
    millennium begins on 1st January 2001), or from the years 0, 1000, 2000, and so
    on (in which case the third millennium begins on 1st January 2000). Thus anyone
    who wishes, for whatever reason, to celebrate the start of the new millennium on
    1st January 2000 has entirely good and rational grounds for doing so, namely,
    (i) the adoption of the astronomical system for numbering years, combined with
    (ii) the convention of beginning millennia with years whose numbers end in "000"
    (and beginning centuries with years whose numbers end in "00"). Note that this
    article does not show that those who hold (as those who adhere to the Christian
    calendar must hold) that the new millennium begins on 1st January 2001 are
    mistaken. Such people have reasons to justify their preference. But this does
    show that anyone who prefers to think of the year 2000 as the first year of the
    new millennium has perfectly sound reasons for doing so.

  5. multiuser by Hard_Code · · Score: 5

    Somebody explain to me why a handheld computer needs a multiuser operating system...or system-level security at all for that matter (I'd go so far as memory protection, etc.).

    --

    It's 10 PM. Do you know if you're un-American?
  6. I wonder. by fluxrad · · Score: 5

    Let us now praise famous men. Randy Rathbun writes "I just got a email from Peter de Jager

    Now are we talking secluded linux geek famous (i.e. "i remember hearing this guy's name three years ago, but just now was reminded who he was because the guys at /. told me") or Tom Jones famous? I mean, seriously, i think real fame is achieved when you can't walk down the street without pussy being thrown at you from every direction. Only then can one truly be Cmdr. Taco famous.


    FluX
    After 16 years, MTV has finally completed its deevolution into the shiny things network

    --
    "It is seldom that liberty of any kind is lost all at once." -David Hume
  7. Re:The 5K site is slashdotted + the mark of the be by Dancin_Santa · · Score: 5

    This message is quite clear. Let's go over it:

    Microsoft OLE DB Provider for SQL Server error '80004005'

    An error occurred inside of a function. 80004005 is your user ID.

    Unknown token received from SQL Server

    You have obviously tried to board this train without a valid token, report to the station manager immediately.

    /shared/functions.asp, line 666

    Microsoft shares functions with the Devil. This is definitive proof that Bill Gates is *not* the devil. He only fills in on occasion.

    Better see that station manager if you have any chance to survive, make your time.

    Dancin Santa