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User: Kjellander

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Comments · 124

  1. Re:He won't fix it? on Hyper-Threading, Linus Torvalds vs. Colin Percival · · Score: 1

    I dunno if I agree, for two reasons. First, you'd be surprised what a sophisticated, determined and deep pocketed adversary can do (e.g., the smart card vulnerabilities that were uncovered a few years ago by analyzing the power consumption).

    Or how about when they figured out that modems leaked data being sent through the status LEDS?

    Blinking LEDs leak info

  2. AMR Codecs on Ride Along With a Real Verizon Wireless Tester · · Score: 2, Informative

    Use Realplayer 10.0.2 under linux. https://helixcommunity.org/download.php/806/hxplay -1.0.2.tar.bz2

    For Win32 there is a decoder with source but I haven't tested it. http://www.voiceage.com/codecsite/openinit_amr.php

    Or you can copy it to a recent Nokia phone and listen to it

  3. Mirror of the video. on First Plasma on the Levitated Dipole Experiment · · Score: 2, Informative

    So we don't turn the server into plasma, here's a mirror of the video:

    http://razor.csbnet.se/First_LDX_Plasma2.mov

  4. Not a troll, but still goatse... on Net Sticky Notes All Over London · · Score: -1, Offtopic

    Cool!!!

    Now I can leave tiny ascii versions of goatse ALL OVER THE WORLD!

  5. Crap article, just plain optic diffraction! on The Home Parallel Universe Test · · Score: 4, Informative

    This kind of pseudoscientific articles are one of the worst things on the internet!

    This is a classic optics experiment to show that light has wave properties, and it has NOTHING to do with parallell universes. It is all explained here:

    diffraction

    And if you want to show any quantum mechanical effects you need to make sure that only one photon leaves the laser at any given moment, and that is not happening here.

  6. Mirror of the video on 3D Modelling From a Sketch · · Score: 2, Informative

    You can use this mirror to view the video.

  7. I forgot one... on Rubik's Cube Comeback · · Score: 1

    Of course I forgot one:

    Josef Jelikek's fast method for the last layer.

    This is the one I use. It's the same as Lars Petrus' method up to the last layer, but then it does things in a different order and you only have to memorize 28 patterns to solve the last layer in 2 steps.

    For beginners I recommend Lars Petrus' page. You only have to learn flipping the edges, Niklas(tm), Sune(tm) and Allan(tm) by heart to always be able to solve it. I.e. only 4 sequences. That's how I started off.

  8. If you want to solve it. on Rubik's Cube Comeback · · Score: 5, Informative

    Here are a couple of links if you want to get better at solving it:

    Lars Petrus' method for speed
    Dan Knight, the world champion
    Jessica Fridrich. Her method is used by many.
    www.speedcubing.com
    www.rubiks.dk
    A solution some think is easy.

    I bought my first cube 2 months ago and today I completed it in 56.98 seconds! After loads of practice of course.

  9. Mirror on Deep Space 6 Publishes New IPv6 Status Pages · · Score: 1
  10. Re:Explosion or Electrocution - take your pick... on NEC Unveils Methanol-Fueled Laptop · · Score: 2, Informative

    Do fuel cells produce gases?

    A fuel cell running on methanol produces water and carbon dioxide. The same stuff your body produces btw, but the human body produces other stuff as well (think farts).

    But anything containing methanol might catch fire if the methanol leaks out, yes.

  11. It's the PEOPLE's money... on UK Govt Warned: Don't Buy GPL · · Score: 1

    ... and therefore the PEOPLE should own the resulting code which they have funded.

    GPL is the only way to ensure that it is so.

  12. Re:A great idea on Using Visible Light for Data Transfer · · Score: 1

    It's not infinity. Probably not even if you had infinite energy.

    For a perfect noisless analog channel the theoretical limit is infinity even if you have finite energy, say for the sake of argument 1 W. Remember that you can have an infinite amount of fractional levels below 1 W, and you can also have an infinite amount of phases to your signal. All this stuff was derived a long time ago and forms the basis of communications theory.

    But for all real physical channels you are gonna hit the limits of quantum mechanics after a while so you won't reach infinity, but for a noisless channel you could still send a stupendous amount of data even if your bandwidth is low.

    And numbers like, a signal at 1500 MHz has a theoretical maximum bitrate of 750 Mb/s, is just incorrect. It hurts my eyes just to see stuff like that.
  13. Re:A great idea on Using Visible Light for Data Transfer · · Score: 3, Interesting

    Consider this, most cellphones around the world operate at 1500MHZ and so have a seemingly impressive maximum THEORECTICAL data transfer rate of 750Mbits/sec. Unfortunately due to physical contraints on modulation systems a good rule of thumb is that the actual data rate provided is about 1/2000 of this and so we end up with around 375 Kbits/sec that is just coming out with 3G systems.

    You should really read up on communications theory, especially the basic stuff done by Shannon, Nyqvist and all the others.

    The theoretical limit for a digital signal modulated in a perfect noiseless analog channel is infinity for any frequency! Where you get your numbers from I have no idea but they are totally incorrect!

    And if you hava a noisy channel the theoretical maximum is dependent on the bandwidth and the noise, nothing else. And just because a signal hase a basefrequency of 1.5 GHz doesn't mean that it has a bandwidth of 1.5 GHz. Go check, all mobile phones have a much, much smaller bandwidth. We are talking orders of magnitude here.

  14. RTCW runs natively on Linux on XFree86 4.3.0 Released · · Score: 1

    "Odd, I was playing Return to Castle Wolfenstein through WineX this morning on my box..."

    Well since it's ported to Linux there is really no need to run it under WineX, is there?

    Check it out here: http://www.idsoftware.com/games/wolfenstein/rtcw/

    You need these to files: wolf-linux-1.33.x86.runand wolf-linux-update-1.41.x86.run.

  15. Re:'Have' IPv6??? on Slashdot over IPv6 · · Score: 1

    Wouldn't Mozilla or Internet Explorer (older versions at least) complain if you entered "3ffe:0501:0008:0000:0260:97ff:fe40:efab" into the address bar?

    The correct way of typing in an IPv6-URL would be:

    http://[3ffe:0501:0008:0000:0260:97ff:fe40:efab]/

    But since that site doesn't seem to work try connecting to www.6bone.net net with this:

    http://[3ffe:b00:c18:1::10]/

    This only works if you "'Have' IPv6" off course. :)

  16. Mirror on A High-School Hacker's Notebook · · Score: 2, Informative

    I'm trying to mirror the site but it's going slow. Only 2 of the images so far.

    http://razor.hemmet.chalmers.se/garote.bdmonkeys.n et/notebook/

  17. Mirror on Happy Birthday Code Red · · Score: 2, Informative
  18. It's not an accident DNA is digital. on Build Your Own Virus · · Score: 1

    I'd better go and backup my genome to CD-ROM, so I can be restored later, in case of an accident...

  19. Re:Time for a mirror ... on Klez: a closer look · · Score: 1
  20. Re:Pig Latin is not a copyright protection scheme on AIMster Uses Pig Latin Encryption to Defeat RIAA · · Score: 1

    Not the exact same argument, and you've spelt out why quite clearly. CSS mangles the CONTENTS! Aimster just mangles the FILENAME, but does not change the content of a file. They're still infringing copyright, they're just making it more difficult to spot it with an automated tool.

    Let's take an example. Say I copied "Baby one more time" and tried to sell it as my own work, as a song called "Hit me baby". Maybe I've changed the name of the song, but it doesn't at all change the fact that I've infringed copyright.

    But the contents in this case IS the FILENAME. The only thing the RIAA are going to filter on is the FILENAME not the contents.

    Say you record white noise, encode it as an mp3 and name it "Baby one more time", it would still be filtered by the RIAA. Not filtered because of it's content but filter by its FILENAME.

    Even though the scrambling mechanism is so stupid the mind baffles, aimster still has protected the filenames and RIAA may not reverse engineer it.

  21. Re:Pig Latin is not a copyright protection scheme on AIMster Uses Pig Latin Encryption to Defeat RIAA · · Score: 1

    Not the exact same argument, and you've spelt out why quite clearly. CSS mangles the CONTENTS! Aimster just mangles the FILENAME, but does not change the content of a file. They're still infringing copyright, they're just making it more difficult to spot it with an automated tool.

    Let's take an example. Say I copied "Baby one more time" and tried to sell it as my own work, as a song called "Hit me baby". Maybe I've changed the name of the song, but it doesn't at all change the fact that I've infringed copyright.

  22. Re:Pig Latin is not a copyright protection scheme on AIMster Uses Pig Latin Encryption to Defeat RIAA · · Score: 3

    I'm sure I'll regret posting something that sounds like a defense of the RIAA, but the DMCA states that it is illegal to attempt to circumvent a copyright protecion mechanism. Inasmuch as Aimster's Pig Latin Encoder does not protect copyright, but just mangles filenames, it's not a copyright protection scheme. Thus, it is perfectly legal for the RIAA to begin using the encoder to request both the regular and pig-latinized versions of songs be removed from Napster.

    Then by the exact same argument CSS is NOT a copyright protection mechnism. CSS just mangles the contents of the files through encryption, it doesn't hinder the direct bit-for-bit copy of the files in any way.

  23. How hard can it be? on Undernet In Serious Trouble: Any Suggestions? (Updated) · · Score: 2

    To every bozo running an ISP out there, use this script on your router to prevent anyone on your net from forging an address:

    #!/bin/sh
    #This will prevent anyone forging an adress on your net.
    #Lots of stuff stolen from pmfirewall.

    IPCHAINS=/sbin/ipchains
    INNERIF=eth1
    INNERIP=`ifconfig $INNERIF | grep inet | cut -d : -f 2 | cut -d \ -f 1`
    INNERMASK=`ifconfig $INNERIF | grep Mas | cut -d : -f 4`
    INNERNET=$INNERIP/$INNERMASK

    #Deny and log all packets with forged addresses from the internal network.
    $IPCHAINS -A input -j DENY -s ! $INNERNET -d 0/0 -i $INNERIF -l
  24. Re:Are you serious? on Is The U.S. No Longer The Choice For Freedom? · · Score: 1

    Over the past 180+ years the US has never been invaded or conquered, the government has been stable, and the standard of living has been consistently very high compared to the rest of the world. We have had waves of immigration from every part of the world by people seeking refuge from tyranny and famine. The US is the oldest true Republic on the face of the earth.

    Clearly this would make one believe that it has been consistently a good place to live.

    Unless you happen to be black! Remember things like the Civil War, slavery, nuclear arms race, chemical weapon stockpiles that could wipe the planet clean etc...

    And what good is a republic if you can't even decide who's gonna be President? Your whole democracy stinks.

    You allways have to be self critical. I happen to live in a country in Europe which wasn't a part of any of the World Wars. It's definitivly not perfect but we lack some of worse parts of the US. (and we can say FUCK on TV!)