April 2005 - Roundtable

Re: [RndTbl] tripod slider images?
by gedetil＠cs.umanitoba.ca 19 Apr '05

19 Apr '05

According to Ian: > Hi all. > Really enjoyed your presentation on 3D images Gilbert! What good fun > that looks to be. Thanks! Glad you enjoyed it and are interested in trying this out... > If anyone owns one a tripod slider and wouldn't mind posting some > detailed pictures, I'd love to have a closer look at one. A Google search on the 3 words "tripod slide bar" will give you a lot of results... http://www.google.com/search?q=tripod+slide+bar Some of the pages (and photos) are of commercial products, and some are for "homebrew" contraptions. So, you have plenty of options, either way. -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg, MB, CANADA R3T 2N2 Fax: (204)474-7609

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tripod slider images?
by Ian 19 Apr '05

19 Apr '05

Hi all. Really enjoyed your presentation on 3D images Gilbert! What good fun that looks to be. If anyone owns one a tripod slider and wouldn't mind posting some detailed pictures, I'd love to have a closer look at one. Cheers! Ian.

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MTS DSL Speeds
by John Lange 18 Apr '05

18 Apr '05

I see MTS has 3 different DSL services: Light Speed DSL, DSL High Speed, Lightning Speed DSL. Surprisingly, the web site does not indicate what the speeds are (other than "fast", "faster", "fastest"). I'm curious what the theoretical upload speeds are for each level? If anyone is actually using these services, what is the "real" upload speeds you get? Thanks. John

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Toshiba Achieves Breakthrough in Flatbed 3-D Display
by gedetil＠cs.umanitoba.ca 17 Apr '05

17 Apr '05

Rather timely announcement, after my presentation last Tuesday... http://www.toshiba.co.jp/about/press/2005_04/pr1501.htm Not sure if they licenced the technology from one of the patent holders... If not, we might start to see some legal activity on that front. In any case, it will be interesting to see what sorts of products and applications emerge. -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg, MB, CANADA R3T 2N2 Fax: (204)474-7609

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Re: [RndTbl] The early days of Unix
by gedetil＠cs.umanitoba.ca 17 Apr '05

17 Apr '05

According to Peter C.J. Graham: > 75 pre-dates both Gilbert and myself, I believe but there certainly > was a PDP 11/45 here in the late 70's. I'm not sure what whether the > original 11/45 was around in 75. Might just have been someone who was > interested but didn't have hardware yet. Gilbert, do you know if Doug > was active with Unix at that time? My earliest recollection, and earliest contact with the department of Computer Science, is from the spring of 1978, when I came for an open house. I saw the Norpak graphics system as well as some other demos, which I later learned made use of the PDP 11/45, behind the scenes, running UNIX Sixth Edition. By the time I started working (part-time) for the department, late in my first year of study, in 1980, the PDP 11/45 was still running UNIX 6ed. One of the first tasks that my brother and I undertook, when we were put in charge of administering that machine a year later (summer of 1981), was upgrading to UNIX 7ed, which had been released in 1979, and which had been purchased and was (sadly) sitting on the shelf for almost two years. I have no knowledge of specifics pre-1978, but I'm quite sure the PDP had been around for a few years already, so it's quite possible that UNIX 6th edition (released May 1975*) had been purchased for it, or in anticipation of using it at a later date. According to Bill Reid: > > John, > > > > Thanks for the URL. That list which includes U of M was a 1975 Unix mailing list > > not a list of Internet nodes. The U of M did not become an Internet node until > > 89-90. And one of my first tasks after going to work full-time for the department, in the fall of 1989, was to get our systems Internet-ready. > > Gilbert were you at the U of M in 75? I'm not _that_ old! ;) > > I think Computer Science ran Unix on a PDP in the early days. Yes, they did, but I'm not sure how far back the "early days" go in this case... * History of UNIX / Linux and other variants http://www.computerhope.com/history/unix.htm -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg, MB, CANADA R3T 2N2 Fax: (204)474-7609

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The early days of Unix
by John Lange 17 Apr '05

17 Apr '05

There is a nice article on Growklaw which describes the very early days of Unix. Denice Richie, Ken Thompson, etc. http://www.groklaw.net/article.php?story=20050414215646742 One thing caught by eye; about 1/2 way through there is a listing of the original 20 or so nodes of the internet and guess who is there? The U of Manitoba! (along with 3 other Canadian universities). A fascinating read for anyone interested in the birth of the modern Internet and Unix. John Lange

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Backing up over the Internet
by Bill Reid 16 Apr '05

16 Apr '05

Rsync works great to back up directories over the Internet. For security I was interested in having the backup copy encrypted and rsync does not really work in this senario. I found two candidates for this: Box Backup http://www.fluffy.co.uk/boxbackup/ duplicity http://www.nongnu.org/duplicity/ I am giving Box Backup a try. Has anyone used either of the these systems? Are there other suggestions? Thanks, Bill

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Printing PDFs in Linux
by John Lange 15 Apr '05

15 Apr '05

We have a report server which generates PDF files. These reports are 8-1/2" x 14 (legal). Under windows, Acrobat reader will scale these to print on 8-1/2" x 11". As far as I can tell there is no way to do something similar in Linux. Does anyone have a suggestion on how this could be done? John

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Blink stereographs
by Glen Ditchfield 15 Apr '05

15 Apr '05

You can get a stereo effect by alternating rapidly between the left and right images of a stereo pair. Some examples are at http://ofwonder.com/blink.html. Move your mouse higher or lower on the page to find a blink rate that works for you.

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April 17th is the last day to pre-register for LinuxWorld (fwd)
by gedetil＠cs.umanitoba.ca 14 Apr '05

14 Apr '05

And this, I promise, will be the last LinuxWorld Canada announcement I forward to you this year... :) -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg, MB, CANADA R3T 2N2 Fax: (204)474-7609 ---------------------------------------------------------------------------- Date: Thu, 14 Apr 2005 17:00:26 -0400 From: "Stephanie Cole"<ems(a)thindataworks.com> Subject: April 17th is the last day to pre-register for LinuxWorld Canada and NetworkWorld Expo 2005! Reply-To: steph(a)plumcom.ca You are receiving this email because you have expressed interest in receiving updates about LinuxWorld Canada & Network World. _____________________________________________________ ----------------------------------------------------- LinuxWorld Canada & Network World April 18-20, 2005, Toronto Ontario Convention Centre, North Building www.plumcom.ca/linux_network.html www.linuxworldcanada.com www.networkworldexpo.com _____________________________________________________ ----------------------------------------------------- Dear LUG, If you want to attend the trade show for FREE, there are only days left to pre-register for LinuxWorld Canada and NetworkWorld Expo 2005! 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