Slashdot Mirror


User: Tjoppen

Tjoppen's activity in the archive.

Stories
0
Comments
46
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 46

  1. Re:Not that bad on Australian ISPs Required To Report Child Porn · · Score: 1

    Except that it says "can be used", not "is used".

    Compare to for instance an axe salesman.
    If this law applied to axe salesmen and murders, he'd have to close down even though there hasn't been an axe murder in his town for twenty years. Just because he knows it'd be possible to murder someone with his axes.

  2. Re:Question about bit-flipping in SHA-1 on More on Newly Broken SHA-1 · · Score: 1

    Serious hash algorithms usually want to have the answer to the zeroth question be "No. It's not easy"
    As such, you can't easily(unless you're lucky) counter one bit flip by one or more counter-flips.
    In fact, depending on the amount of "unused" data at your disposal, it may be impossible - like with 128b data resulting in a 160b hash, you have(on average) just a 1:2^32 chance of there being a collision at all.

  3. Re:Sealab quote on Robotic Arm Controlled By Monkey Thoughts · · Score: 2, Funny

    .. or how about:

    Murphy: Not if he's surrounded by bananas! I mean, look at him, he's in heaven.
    Stormy: No, look! He's doing it. He's going for help.
    Murphy: No he's not. He-
    * Jango enters carrying monkey porn
    Stormy: Jango, put that down!
    Murphy: I told you he'd find it.

  4. Re:Uses? on 42nd Mersenne Prime Probably Discovered · · Score: 1

    I know. Notice how I typed probably in reference to the article.

  5. Re:Immoral use of computing power on 42nd Mersenne Prime Probably Discovered · · Score: 1

    The joke would be better had the title read "To serve man".

    Where would we be today without the twilight zone?

  6. Re:Uses? on 42nd Mersenne Prime Probably Discovered · · Score: 1

    There ara probably as many Mersenne primes as regular primes. Thus you could just as well encrypt with Mersenne primes.

  7. Re:Man... on Napster Has Been Cracked · · Score: 1

    This is assuming the different formats use similar compression algorithms, say DCT.
    It is an entirely different thing if you'd transcode data from a DCT based format to say a wavelet based one.
    Or how about algorithms that don't give a damn about frequencies such as simple CELP-based ones..

  8. Sounds familiar.. on University Launches Semantic Web Interface · · Score: 1

    I'd call it kSpace

    Does this too tie all libraries everywhere together? Certainly it must do so and more to earn the right to be a successor to L-space, as can be gleaned from its name...
    If so, one must be careful so you don't end up in the past and find yourself sleeping off the counterwise wine you just drank.

  9. Not on swedish airports.. on Server Inside a Suitcase · · Score: 1

    When I went home christmas last year I brought a broken PSU to get replace. Anyway, I put it in my bag which counted as hand luggage.
    What I hadn't thought of was that it'd have to go through security, and a mysterious box with cables coming out of it should alert the security at least a little. But guess what - not a word.
    So the next time you want to bomb a plane, put the bomb inside an ATX PSU, and you get past security no prob!

    So a suitcase computer shouldn't cause much problem around here...

  10. Re:how long before patch? on Microsoft's AntiSpyware Disabled by Spyware · · Score: 2, Insightful

    How about denying your user write access to system related folders?

  11. Trendsetters? on Following the Chips in Wynn's New Casino · · Score: 1

    And this year's hottest school trend is(you guessed it):
    Tinfoil hats!

  12. Re:For a bunch of slashdot nerds.... on Judge Slams SCO's Lack of Evidence · · Score: 1

    Or maybe he's a fellow loser?

  13. Terrorists! on Personal Spaceflight Leaders Form New Federation · · Score: 1

    Think about the hype around someone hijacking a space ship and crashing it into a capitol city/landmark of their choise...

    - We have recieved reports that Mars is harbouring terrorists.

  14. Re:Not too bad on Walmart Expands Low-End Linux Notebook Offerings · · Score: 1

    I had plans to build one. After some careful checking around the web I came up with a shopping list:

    * nano-ITX motherboard
    * lead-acid ackumulators(sealed) for power(a lot, several hours)
    * keabord stripped of crap and homemade slim keys
    * 15" TFT monitor(might be hard to find thin enough)
    * power circuitry(regulator, rechargability etc.)
    * case, possibly home built

    It would land at around 3kg, be the width and depth of the TFT and 3-5cm in height.
    I'm thinking of making it a summer project. This or that single bit relay computer running my single bit brainfuck version(seven instructions).
    Both require about the same amount of cash, the latter though has more nerd value...

  15. Condensed article.. on Robots that Lust and Reproduce · · Score: 5, Insightful

    Article in condensed form:

    Fuzzy logic
    Genetic algorithms
    Control robot behaviour
    "Some time in the future"

    It's easy to mimic feelings. Making up new ones or the robots evolving new ones though.. That's the tricky one.
    Also, cue a hundred or so futurama related jokes. In fact, I'll just hop on the bandwagon;

    - If robots don't reproduce - why are they so interested in sex?
    - Entirely for the perversion

  16. 1946 - Plankalkül on A Brief History of Programming Languages? · · Score: 1

    I don't see Plankalkül on there.. It's a stone cold shame. For more detail:
    http://www.epemag.com/zuse/part5.htm

    Quite interesting stuff about for instance the Z1 there.. The mechanical memory(part 3b) is very neat

  17. Correction on The History of Computing Auctioned at Christie's · · Score: 1

    It was tape, not wire. Well, the principle's still the same

  18. Magnetic wire.. on The History of Computing Auctioned at Christie's · · Score: 1

    Interesting with that magnetic wire(lot no 244) there, seeing as there still are magnetic wire readers around(mostly audio, but one can adapt).

    My dad actually have plans on how to build them in some old tech magazines from the 40's-50's. Those magazines are quite en interesting read, like the one focusing on THE ATOM. But I digress...

    You could build your own wire reader using modern day hardware. Might be able to pick up the data. It is already known it's stored at 128 bits per inch according to the lot.
    Question is if you'd really want to - after all you'd run the risk of lawsuits for revealing trade secrets!

  19. Re: interesting project using sound/data xmit on Piezo-Acoustic iPod Hack · · Score: 1

    Hm. Sounds like it's transmitted AM instead of FM.
    That's one thing I learned is very prone to background noise. Neat no less.

    What if each column was coded so that frequency = y-position, amplitude = intensity and entire columns were transmitted at a time? Would sound very weird at least :)

  20. I did something like this.. on Piezo-Acoustic iPod Hack · · Score: 3, Interesting

    I have fiddled a little bit with similar stuff.. Transmitting data via sound.
    Basically I made a program that analyzes(FFT-ish) whatever comes in through the mic.
    The sent data was beeps at 375Hz(zero) and 1500Hz(one). I was able to recieve data from a range of ~5m at around 50bps. In real-time no less.

    As an added bonus it annoyed the hell out of my roommates(beepbeepboopboopbeep..)

  21. Well, it looked fine on Evolving Swarms with Swarmstreaming · · Score: 1

    Until I tried the simulator running a T1 line at which point it chewed up a good deal of my RAM and 100% CPU. I gave up after a couple of minutes of waiting. Wonder what'd happen in real life in such a situation...
    But if you can afford the 1Gbps line and $25k license fee - sure, why not?

    It's quite similar to an idea me and another guy has had for a couple of years but never implented due to the time-bandit that is school. Except it wouldn't require static source material(which this does from what I've read).

    Wonder how resistant it is to DoS attacks. Get a gang of people submitting false data down the line would certainly cause a lot of trouble before being detected..