Berkeley CSUA MOTD:2002:August:09 Friday <Thursday, Saturday>
Berkeley CSUA MOTD
2002/8/9-11 [Uncategorized] UID:25525 Activity:nil
8/9     Question for Cyrus IMAP users; is Sieve the only thing I can use to
        make things such as 'vacation' works? Cyrus won't recognize .forward
        or .vacation.msg in your homedir. (Pls don't tell me to switch to
        a different IMAP, it's not in my control) Thx!
        \_ Switching generally only applies to pine users.  :-)
2002/8/9-11 [Computer/SW/Languages, Computer/SW/Languages/Misc, Computer/SW/OS/OsX] UID:25526 Activity:kinda low
8/9     Sometimes I can print a regular ps file and get the desired output,
        but when I converted it to pdf, the result does not look nice on
        screen. Does this mean it uses certain fonts available on the
        laser printer but not on my machine?  How do I get the right fonts
        if this is the problem?
        \_ What software are you using to convert to PDF?
           \_ ps2pdf on *nix and distiller on mac.  Both have this problems.
        \_ What are you trying to do (i.e. how did you create your PS? LaTeX?)
           The usual problem is that you embed Type 3 fonts in your PS
           file. Type 3 is bitmapped. You need to embed Type 1 instead.
           Are you using dvips?
2002/8/9-10 [Uncategorized] UID:25527 Activity:nil
8/9     Has anyone else experienced "Can't deliver message for the past 4
        hours" emails when mailing from soda?  I'm not venting, just
        trying to narrow down a problem.
        \_ I've been able to send and receive email as of 11:30am.
           Does it occur with multiple emails?
           \_ One address in particular, but multiple mails.  Thanks for
              your reply.
2002/8/9-10 [Uncategorized] UID:25528 Activity:nil
8/9     why would anyone want to watch the entire 55 minute porn flick
        "deep throat" all in ascii?  watch for yourself and decide.
        \_ ASCII + Deep Throat = spirit of the 70s. Don't you get it? DUHHH
2002/8/9-10 [Recreation/Dating] UID:25529 Activity:high
8/9     In porn videos, why do the guys always withdraw right before they
        ejaculate, but never ejaculate inside the women's bodies?
        \_ I don't know exactly but there are numerous laws in the US about
           what they can and can not show.  Sex+bondage is another.  Or used
           to be.  Dunno.
        \_ To emphasize they really did come? Dunno. What I find amusing is
           that a lot of times they're wearing a condom, and then in the shot
           where they are about to blow their load, condom is mysteriously gone
        \_ It's always seemed weird to me that the ejaculation shot
           ('money shot') is one of the most pivotal porn scenes... Is it
           because guys want to see jizz? -soda gal
           \_ From a guy: I don't.
           \_ obAreYouHot?
        \_ Personally I think it is stupid. It's more exciting to see guys
           cum inside and watch the cum ooz outa the girls.
           \_ Is it?  A guy coming inside a girl is visually boring.
              \_ Yeah, that's why they use those moments to splice in the next
                 time he gets hard.
              \_ doesn't have to be... endoscopy, duud...
        \_ Have you seen those Virtual Sex DVDs, where you get to choose how
           to do a porn star? The jizz is CGI.
        \_ Fascinating set of porn clerk articles at
           \_ I enjoyed reading these. Thanks for posting.
              \_ yeah, you just can't stop reading. -op
                 \_ You can, but only because she stopped writing.
2002/8/9 [Industry/Jobs] UID:25530 Activity:nil
8/8     Is there a technical reason why there exists a tradeoff between
        resolution in frequency and resolution in time? When I took
        EE120 with Kahn, he attributed it to Heisenberg Uncertainty,
        and although that involves a tradeoff too (velocity/location)
        I don't see how that explains the frequency/time tradeoff.
        \_ Isn't it the idea that by "zooming in" on a unit of time,
           you're missing the "big picture" frequency?  Eg, mistaking the
           high frequency carrier wave in AM radio for the actual lower
           frequency signal?
        \_ Here is the crux of the problem, how can you resolve a 10 Hz
           signal if you observe for a mere 1 us?
        \_ The posters above give a good intuitive explanation of the
           time-frequency trade-off.  For a more technical explanation
           imagine that you want to measure some properties of a
           signal, s(t), through a finite time-slice.  You can get a
           finite time-slice via multiplying by a "boxcar", b(at), which
           is 1 for -.5 < t < .5 and 0 elsewhere.  In frequency, multiplying
           by b(at) is convolving with (1/a)B(f/a) where B(f) is a sinc.
           Choosing a to be large gets you very fine time-resolution, but
           makes the sinc sidelobes wide smearing out X(f) and giving poor
           frequency resolution.  Choosing a to be small makes the sinc narrow
           and reduces the smearing in frequency, but gives you poor
           time-resolution since you are including a long time-interval
           of s(t).  There are many ways to do time-frequency analysis where
           instead of using a boxcar you use other functions, but you can't
           escape the tradeoff.  See wavelets for more info.  -emin
                \_ Thanks, but that's more of a way of just
                   demonstrating the tradoff. Is there a natural or
                   technical reason why it exists?
                   \_ I'm not sure what you mean by "a natural or technical
                      reason why it exists".  If you could be more
                      specific about what you find unsatisfying in the
                      previous three explanations, I could do better. -emin
                        \_ I'm just wondering why the tradeoff exists. Is
                           it simply because time and frequency are
                           are inverses? (i.e. t = 1/f)
                    \_ I tried to understand this in particular and EPR in
                       general at one time.  I went to a friend of mine
                       who now is a physics instructor at CAL (part time)
                       and he stepped me through a bunch of math (including
                       Lornez transformation) and I realized I was over my
                       head and gave up.
        \_ I found this confusing too. The equations that describe
           a particle position/momentum and the equations that describe
           the time/frequency resolution are the same equations. So,
           the phenomena of the time/frequency trade-off is called
           Heisenberg Uncertainty, not because there is some physical
           connection between particles and Fourier analysis, but because
           the math works out exactly the same.
2002/8/9 [Politics/Domestic/Crime, Politics/Domestic/President/Bush] UID:25531 Activity:nil 60%like:25533
8/9     Koreans and microwavable dogmeat:
2002/8/9-10 [Academia/Berkeley/CSUA] UID:25532 Activity:kinda low
8/9     are there any simple command-line games installed on soda?
        \_ /csua/bin/fortune
        \_ /usr/games/*
        \_ /usr/local/bin/pine
        \_ (setenv EDITOR ed; /csua/bin/me)
           \_ env EDITOR=ed /csua/bin/me
2002/8/9-10 [Uncategorized] UID:25533 Activity:kinda low 60%like:25531
8/9     Koreans and microwavable dogmeat:
        \_ I'll be sure to eat dogmeat the next time I'm in Korea just
           to piss you people off
Berkeley CSUA MOTD:2002:August:09 Friday <Thursday, Saturday>