Archive for November, 2005

If I wanted a Math Major I would have Taken one

Monday, November 28th, 2005

Sometimes physics problems drive me nuts. “Here, do a bunch of math. The application to the real world is easily understood but there isn’t much else to do on this problem, so just derive a bunch of equations that we’ve come up with here, and we’ll call it a day.”

I like it when they give you a problem and you have to figure out how to solve the thing. I hate problems of the form “Show that X Behavior takes the form of this complicated equation. We’ve taken the liberty of replacing these very ugly things with constants, but you’ll still have the manipulate the equation in its gargantuan form if you’re to complete the assignment.” Ugh.

Also, happy thanksgiving I guess.

On Vector Caculus and Cat Fur

Wednesday, November 16th, 2005

I was petting my cat, when I started thinking about vector calculus. (Why not?) Anyhow, I realized you could demonstrate some vector operations with cat fur: The cat is like a vector field (we’ll call it F) because it’s covered with hairs, each of which has a length and a direction. If the cat has a cowlick in one spot on its head, this is an example of a part of the vector field where del dot F is large, because the hairs all sort of stick out from that point. If the cowlick is swirly, then it’s also a case where del cross F has a nonzero value.

I’m not sure how you could bring gradients into play, seeing as how the del cross f is zero and therefore the cat isn’t expressible as the gradient of a scalar function. Something tells me my cat is perfectly fine with that.

A Universal Truth

Monday, November 14th, 2005

From the poor and stupid blog:

FYI you are tangentially responsible for an argument between my wife and me during the hurricane fiasco. She thought $40 for a roll of toilet paper was gouging, and I though it was brilliant. I am, of course, wrong because I am the husband and she is cuter than I am.

Rye Chips

Saturday, November 12th, 2005

I love snack mixes. Two of them in particular; garadetto’s and chex mix. I prefer the cheesey or extra spicy varities of chex mix, however, because they don’t have the scourge of all snack mixes: rye chips. I hate those damn things, and yet it seems like every snack mix decides that they are neccessary and sufficient.

As I was picking them out of my bowl of snack mix, I considered that perhaps rye chips are like difficulties in life: They’re placed where they are by some jerkoff in the marketing department at Nabisco because they think it won’t sell otherwise. I then realized that perhaps I’ve become too comfortable making analogies that really just don’t fit. In any case, I still hate rye chips.

On the Obfuscation of Work-Related Activities.

Friday, November 11th, 2005

My boss told me the other day we have to cut telecommunications spending in our company by about 50%. To figure out exactly where all of the money was going, yesterday I compiled a spreadsheet of all the information from our cell-phone bills, to find out how much money we’re spending on each person, how many minutes we’re buying for them, and how many of those minutes they were using.

The Verizon bills were handy because after each phone number there was the name of the person using the phone. The T-Mobile bills, however, lacked that feature. I was able to use the Blackberry Enterprise software to find out which users were attached to which devices, but there were still a bunch of numbers on the T-Mobile bills for whom I couldn’t find a user, even though the phones were clearly being used by someone, as evidenced by the activity on the bill. Today, I took a list of phone numbers for which I could not find users, and sent each one of them an SMS text message, telling them to reply with their name or else I’d cancel that line of service. So I spent a good half an hour going through this list of cell phone numbers and sending out that text message.

To the outside observer, I looked busy. However, I could easily have been sending text messages to my friends like those guys who bag your groceries at kroger, and I still would have looked ‘legitimately’ busy. If I was just sitting there, texting away on my cell phone, the case might have been different. Having that spreadsheet in front of me, to which I would occaisionally make changes, was sufficient to imply to anyone watching me that I was most likely doing somethign buisness related instead of something entirely personal (like writing on a blog, for example.)

I wonder, now, what exactly what steps would be necessary to convey a ‘legitimate’ air to completely personal activities undertaken while on the job. When you’re on the phone, it generally looks like you’re busy and talking to someone important, so even if you’re calling your hair stylist to set up an appointment (for example) it could look like you’re calling to get important stuff done. The same is true with a blackberry – if I’m looking at a blog on my computer it’s obvious what I’m doing, but if I look at the same blog from my blackberry, it looks like I’m reading important documents or something. Especially if I frown at it.

Hmm. Just something (among many other things) for me to think about.

A Little Cleaning Goes a Long Way

Tuesday, November 8th, 2005

We cleaned out the server room at work today. Picking up a bunch of cables strewn about the floor, and getting rid of random detritus like a peice of fiberglass insulation really made the place look like a right proper server room. Amazing what a little tidying up will do for you.

I Saw This One Coming

Tuesday, November 1st, 2005

Once I had a full and complete realization that all information is exchangable and the represenation of such is completely arbitrary, I realized that all attemps at DRM would fail. As I stated earlier, Attemping to come up with a functional DRM system is computationally equivalent to coming up with an encryption system that allows bob to recieve a message, but prevents him from sharing that message with Eve, even if he wishes to. If you understand cryptoology at all, you’d recognize that such a problem is really quite absurd and no reasonable cryptologist would begine to attempt it. You’d be laughed at if you tried to get cryptographers to undertake such a task, but that’s exactly what Hollywood, Microsoft, and all kinds of other folks have been trying to do. They’be been somewhat succesfull at it in the sense that if you’re an ‘average joe’ and don’t have a technogolically inclined friend to ask, it might be kind of difficult for you to copy the latest linkin park CD onto your .mp3 player, but as long as you know someone who is technogically inclined and ‘in the know’ it’s fairly easy to find someone who knows how to circumvent whatever kind of copy protection has got you down.

Because I’m lazy, I’ll just copy and paste the boingboing text about this article: Hollywood has fielded a shockingly ambitious piece of “Analog Hole” legislation while everyone was out partying in costume. Under a new proposed Analog Hole bill, it will be illegal to make anything capable of digitizing video unless it either has all its outputs approved by the Hollywood studios, or is closed-source, proprietary and tamper-resistant. The idea is to make it impossible to create an MPEG from a video signal unless Hollywood approves it.

I must point out another computational equivalency here: Taking a video signal and turning it into an MPEG is a form of “open encryption” – the result is a peice of information, significantly smaller than the original signal, which can be used to reconstruct an approxmation of the original signal. The RIAA is saying they ought to have a software patent on the MPEG format, as well as any other format which could concievably be used to compress video. What they don’t realize (or else what they’re not bothering to tell anyone) is that the MPEG format is a member of a broad class of Discrete Cosine Transformation based algorithms which use mathematical theories regaring a class for Fourier Transformations to create a simplified approxmation of a complicated signal. For the RIAA to say they ought to be the arbiters of the use of such algorithms to prevent piracy is the same as for the police to say that no one should be allowed to build anything using a rotating lathe, becuase if they were allowed to build things, they might build sharp objects which could be used to stab people. I exaggerate, but the point is the same. The RIAA is trying to abrogate control over some well-understood (and public domain) information because said information could be used to do something counter to their efforts. Even if you ignore the ridiculous equation of stabbing someone with copying a CD that you bought to your hard drive, you have to concede that it’s absurd to grant a body control over technology that might be used to infringe upon the rights granted them by law.

The RIAA has come to the realiztion (of which I have been aware for several years) that a choice must be made. They’ve been trying to construct their computationally ridiculous form of encryption for years now, and now they finnaly get that it can’t be done; it’s an impossible task to undertake unless you use the law to prevent people from using well understood (if only by mathematically inclinded individuals) mathematical operations on input signals. Unforunately, I think there’s a rather low probability that there are too many members of congress with a good solid grasp on Fourier Transformations and their Application to reduction of Information Entropy in a digitized representation of a video signal. So we’ll see how this plays out.

I know said I’d make this blog apolitical and I guess i could see how this could maybe be considered politics, so if i’ve offended you thenI’m sorry etc etc.

The Good Old Days

Tuesday, November 1st, 2005

I had a ‘Halloween Party’ when I was in 8th grade. I had some friends over, and we went trick-or-treating together. It was a lot of fun. Tony DeBlasio went dressed up as what I’m trying to remember as anything but ‘A Black Man.’ He had a trench coat on, with a bunch of watches on the inside. He was wearing sunglasses, which I thought looked pretty cool. Jeff Behrends was wearing an Evansville University (Home of the Purple Aces) Sweater, cap, and jacket, which he claimed made him into a ‘college student’ although to this day I suspect that he didn’t really feel like wearing a costume. I don’t remember what the rest of my friends wore. I think I may have been dressed up in a satan costume and Bill Clinton mask. I was always one for hyperbolic political statements, even though at the time I had no idea what I was talking about.

Trick Or Treating was fun, but after that we went up to the construction site on the hill in my back yard, where me and Brad Hirn uprooted a small tree which we then used to chase tony around. After that we were doing something on the playset in my back yard when my mom opened the door and said that there were ghost stories on the history channel, if we wanted to watch them. For some reason, we found this to be hilarious. My mom later told me that she felt I had a good group of friends, which we all found to be humorous because we considered ourselves to total badasses, as do a majority of boys around that age.

Life was good.