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User: ChrisDolan

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Comments · 174

  1. Re:Space Tech Spinoff Again! on Wavy Lenses Extend Depth of Field in Digital Imaging · · Score: 1

    Totally unrelated to this story. That was spherical aberration, this is depth of field. Telescopes always view at effectively infinite depth of field, so this technology is not directly applicable to astronomy.

  2. Books online on Ask Larry Niven · · Score: 1

    What's your opinion on eBooks, today and in the near future?

    You released one eBook for free (Fallen Angels) at Baen's free library. Fallen Angels was very amusing at points, but far below the quality of your other work, or Jerry's for that matter (I don't know much about Flynn). Did you guys choose to release that novel after it was written or before? Would you release another novel, either for free or for pay?

  3. Re:Hardware.... on HDTV via GNU Radio · · Score: 1

    Ahh, it was not clear from your previous post that the board you were advocating was made by your company. Why not get your company to donate a sample board rather than you do it yourself? Surely it could only help sales if you got more people writing software for your board. Or are you saying that the money your company makes is on the software for the board? Gnu Radio is your competition?? If that's the case, well, this is a pretty pointless discussion.

  4. Re:Hardware.... on HDTV via GNU Radio · · Score: 1

    I'd love to see them put a decent FPGA, an Intersil 50216 ... could do that for a bill of materials of about US$200

    Have you considered donating the hardware? Since you can't participate in the coding, as you have explained, perhaps financial support is more in order.

  5. Re:not just FPS anymore on Nvidia Talks About Next-Gen Geforce, Plus Pics · · Score: 4, Funny

    just 10 years ago a 486 DX system could cost over $4000 grand

    4000 grand??? I think you paid too much. :-)

  6. Re:Self-signed certificates on All-New PowerBooks, Web Browser Featured at Macworld · · Score: 2

    Thank you for the reminder, but I've already done that. :-) I just thought others might like to know. Konqueror seems to do self-signed certs fine (although that's second hand knowledge), so it looks like this bug is indeed Apple's fault.

  7. Apple X11 for Fink users on All-New PowerBooks, Web Browser Featured at Macworld · · Score: 5, Informative

    If you use X11 under Fink, you can do this:

    dpkg -r --force-depends xfree86-base
    dpkg -r --force-depends xfree86-base-shlibs
    [install the SDK from apple - http://www.apple.com/macosx/x11/ ]
    [install the user install from apple - http://www.apple.com/macosx/x11/download/ ]
    fink install system-xfree86

    (courtesy of Ben Hines on the fink-devel list)

    You may have to manually edit your $HOME/.xinitrc file to add the "exec quartz-wm" line in place of any other "exec" lines.

    Other than that, it works great for me. The new Quartz WM is good.

  8. Self-signed certificates on All-New PowerBooks, Web Browser Featured at Macworld · · Score: 3, Informative

    Safari apparently does not support self-signed certs. Mozilla and IE show a dialog offering to use or reject the cert, but Safari just bails. Try https://www.codefuries.com/

    I guess this must be Apple's fault, not KHTML's. I known Konq works on the above url.

  9. Re:Ban advertising too on Kid-Safe Domain Created · · Score: 2

    Perhaps this is slightly off-topic...

    One huge exception, in my opinion, to your generalization is the Fun For Girls half of the www.americangirl.com site, owned by Pleasant Company. There is definitely advertising going on there (the site does talk about the characters), but none of it is blatant (there is no mention/pictures/links of dolls, books, etc). It's pretty remarkable, I think.

    Big disclaimer: I've done work on the americangirl.com site, but I don't work for Pleasant Company.

  10. Re:Make _Terminal_ Work For You on Macworld Holds Battle of the Browsers · · Score: 2

    Ahh, thank you! I had quite misunderstood the open command. I guess I should have RTFManpage instead of relying on bad examples... :-)

  11. Make _Terminal_ Work For You on Macworld Holds Battle of the Browsers · · Score: 4, Informative

    Try this on the command line:

    bilbo% open "http://apple.slashdot.org/"

    It uses you Internet prefs to decide which browser to launch.

    But do you want to see something really bizarre? My prefs are set to use IE as the default browser (yeah, I know, sorry). But If I explicitly try to launch an url with mozilla, it launches in IE instead. That is, the following command launches IE:
    open /Applications/Mozilla.app "http://apple.slashdot.org/"

    *shrug*

  12. Re:With moz 1.2, my banking service stopped workin on Mozilla 1.2 Unleashed · · Score: 2

    You're not going to get your problems solved complaining here. Post some bugs to bugzilla.mozilla.org (after searching to make sure someone else hasn't already posted them) and include the URL for your bank.

  13. Yes and no on Do People Really Use Their PDAs? · · Score: 2

    I've carried my Visor to and from work every day for almost two years. At the beginning, I used it constantly: the calendar, the todo list, etc. Now I use it only maybe once or twice a week, but on those occasions, it's fantastic. It's my definitive repository of phone numbers and addresses (I manually "sync" to my paper address book at home occasionally), I keep all of my infrequent calendar event in there (when was that concert again?), and I keep a bunch of Twain/Poe/Doyle short stories on board for when I'm bored in the dentist's office.

    So, it doesn't *need* to be a life-defining piece of hardware to be essential.

    Oh, and Bejeweled. Can't forget Bejeweled. Stupid, addictive game...

  14. Re:Government spectrum scam on Cell Phone Service Degenerates Further · · Score: 5, Interesting

    Do you really believe that the free market would have done better than the FCC has? If there were no FCC, there would be no radio astronomy. Your TV signal would get interference from the cell-phone bearing people walking down the sidewalk.

    The Iridium satellites' frequency band was closely examined and approved by the FCC. When they launched however, it was found that they were broadcasting in a sideband well outside of that permitted band, rendering radio telescopes useless (like shining a flashlight down an optical telescope) so the FCC decreed that the Iridium transmitters had to be turned off as they passed over certain geographical regions.

    Tell me how the free market would have solved that one. Ruled in favor of science or dollars? Free market favors the majority when a conflict arises. The government also keeps the needs of the minority in mind.

    Further reading: Wired article

  15. Re:My only complaint... on Mozilla Adding Spam Filters · · Score: 5, Funny

    No they likely aren't. They have this cool thing called Bugzilla (http://bugzilla.mozilla.org/) which is designed to track bugs and new feature requests. If you want to be heard, that's the place to submit, not here.

    It's like, if you want to submit a complaint to Microsoft, you write them a letter to their company address instead of, say, writing your complaint as graffiti on a New York subway car. Wait a minute, actually, you might run into a MS employee doing butterfly graffiti, so that's a bad analogy... Plus, a subway isn't a good metaphor for Slashdot. The /. crowd is much scarier.

  16. Re:mod_perl DSO unstable? on Build Your Own Mac OS X Apache/mod_perl Server · · Score: 4, Interesting

    I don't know about stability, but here's an anecdote of how mod_perl as dylib hurt me: I upgraded to 5.6.1 shortly after getting 10.1.4 (IIRC) and took all of the cinfigure defaults. This overwrote the 5.6.0 libperl.dylib with the 5.6.1 version. Boom! No more mod_perl, since mod_perl.c is linked pretty closely with a particular version of Perl. It took a LOT of careful cp'ing off the install disk to recover.

    This is mostly the fault of Apple's braindead perl install which neglects to include a "5.6.0" component to the perl tree. When I went to 5.8.0, I used "prefix=/perl" and left Apple's 5.6.0 (and mod_perl) untouched, except for replacing /usr/bin/perl.

    [disclaimer: I haven't read the article yet]

  17. Re:Performance? on Exploring XML Encryption · · Score: 2

    Have you looked at PDF encryption? Granted, it's all RC4 with MD5 password hashes, not the "variety of different schemes" you mention, but encrypted PDF docs have plaintext metadata and encrypted content data intermixed. It's really quite cool, and the performance hit is tiny. The advantage PDF might have over XML, however, is that the document format is internally indexed, so you don't have to parse the whole thing to get the one piece of data you want. That detail aside, I think this is quite feasible without big CPU hits.

  18. Re:Sharing calendar online is silly? on Apple Releases iCal · · Score: 2

    I don't know about setting up the .mac share, but there is support for user/pass authentication for webDAV shared calendar. It's under the advanced options of the subscribe dialog.

  19. Interference on Ask Eric Blossom about Software-Defined Radio · · Score: 2, Offtopic

    This is one project where hacking the code can kill people or land you in jail. Don't broadcast on the wrong frequency!

    Keep this away from radio telescopes!

  20. Re:going off target on Yale Students Capture Asteroid On Film · · Score: 2

    That's an exaggeration. People go off their proposal all the time. That's about the only way gamma ray bursts get captured.

    Plus, it happens quite often that:
    * The night is not of high enough quality for your project (e.g. cirrus on a photometry project)
    * Your targets set an hour before dawn or rise an hour after sunset
    * The TAC gives you time when the moon is within 10 degrees of your target (been there, done that)

    WIYN generally has a fair bit of free time. Wisconsin has implemented a "Grad Student Queue", about a night or two per year for experimental projects. Its good practice for younger students and sometimes leads to published papers.

    I'd rather win the lottery than get an extra night of Coude Feed time. Getting a free night or a half night is not as unlikely as you describe. The 2.1m telescope only is only oversubscribed by a factor of 2.23 according to the March NAOA newsletter (http://www.noao.edu/noao/noaonews.html) (meaning almost half of the applicants are granted time) which is MUCH better odds than the lottery.

  21. About the WIYN 0.9m telescope on Yale Students Capture Asteroid On Film · · Score: 3, Informative

    For the curious, are are some factoids about that telescope.

    * There is NO film involved. This telescope has been purely digital for quite a while.

    * It was the KPNO 0.9m until it was sold to the WIYN (Wisconsin, Indiana, Yale and NOAO) consortium. since NOAO runs Kitt Peak, this means that the telescope used to be 100% accessible to US astronomers, and now 60% of its time is dedicated to observers at WI, IN and Yale (which is cool for them!).
    * As off the last time I checked, it boasts shared use of the biggest digital camera on the mountain: 8192 x 8192 pixels (on 8 2048x4096 chips)
    * It was built in the early 70's IIRC. It is run by a PDP-11 with Forth software.
    * For some of it's computer parts, there are no more spares anywhere. When they die, it's upgrade time.
    * It is right next to the WIYN 3.5m telescope
    * The dome roof gets frozen open or shut in the winter sometimes, despite being in southern Arizona.

    * I spent about two weeks at that telescope, about half of which was cloudy...
    * Here's the type of picture that 8192x8192 camera can take (before a lot of postprocessing): the Orion Nebula (shrunk to 1270x948) http://www.astro.wisc.edu/~dolan/thesis/trap.gif
    * It has a pretty nice stereo system, but not as nice as the one at the 3.5m telescope (Klipsch speakers!)
    * It's a fun telescope to use.

  22. Gotta update the FAQ... on MacSoft To Publish Neverwinter Nights In Fall 2002 · · Score: 2

    The FAQ still says that they're doing a simultaneous release for WIn/Lin/Mac. It looks like the Marketing is not in sync with reality yet.

  23. Re:argv? on Wall and Conway Answer Perl 6 Questions · · Score: 2

    I remember it as
    argc = argument count
    argv = argument value
    Yes, Damian was joking.

  24. Re:Maybe I'm missing something . . . on XML Web Services & Security · · Score: 2

    The extra security holes are in the SOAP (or whatever web service protocol) layer. Yes, you are right that I'm doing a bit of apple/orange comparison when contrasting SOAP to plain CGI. But the point is that (at least in Perl) CGI is pretty safe if you know what you are doing, but recently there was a gaping hole in SOAP::Lite and XMLRPC::Lite. If Slashdot offered a post web service, they would perhaps have had their whole database hacked, since SOAP::Lite was allowing arbitrary remote function calls (if I have not misunderstood the bug report).

  25. Re:Maybe I'm missing something . . . on XML Web Services & Security · · Score: 1

    You're missing the point. This has absolutely nothing to do with whether or not web services are easier on the end developer. Clearly they are. The issue is SECURITY.