Archive for March, 2008
Dsitributed Computing, continued, and a handful of new words
I did end up joining into distribued computing. I dowloaded the BOINC (Berkely Open Infrastucture Network for Computing) software, and I’ve been running a climate change model for ClimatePrediction.net. I haven’t seen it affect the performance of my computer, since it hands over whatever processor I need and just uses the spare. Granted, since I’m now using all of my processor’s capabilities, the computer is working harder, and the fan runs pretty high all the time, so I turn it off to sleep, but I can deal with it otherwise. Additionally, the work it’s doing is going to take a long time: it’s had 12 hours of processor time so far, and it’s 3.6% through one of the tasks–and that’s the shorter one.
There are a few non-words that I’ve decided should be words:
Brandinage– someone on a Latin quiz (I grade quizzes and homework for one of the intermediate level Latin courses, by the way) was trying to write “brigandage” and apparently was writing too quickly, so ended up with brandinage. Google tells me that there are no uses of it on the internet, so I should soon be the only one. It should be pronounced similarly to “triage” rather thn “bandage.” I’m not sure yet what this one should mean.
Faights–this was my own mistake. When I translate Latin, I usually end up looking back at the Latin text while still writing out the English translation, which can end up in some drastic misspellings, like this one, which should have been “fates.” Google tells me that its uses are mostly misspellings of “fights,” and perhaps something in Latvian. The spelling suggests to me that a faight should be some sort of fairy/sprite sort of a thing, and I think it should be pronounced as “fates” is, but with a slight glide towards the pronunciation of “fights.”
Usion–A similar error in Latin translation for “unison.” Google gives mostly vaguely pretentious respellings like [conf]usion. Should be pronounced like fusion, but without the F. I don’t know what this one means yet either. It makes me think of use and usury.
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Headphone Repair
My roommate did acquire a soldering iron. I had expected to have to go into the electrics lab with him and maybe, if I was lucky, be allowed to solder. But the lab instructor just handed over the soldering iron and the accompanying business to Bevan. He brought it back to the room, and after setting up a workstation of a slate tile to keep from burning the wooden floor, he proceeded to teach me to solder. We followed an excellent guide I found for changing a headphone plug. We differed from it on only a few points–the wiring in my headphones had tension relief material in it, which looked like tiny threads, so we had to separate that from the actual wires and cut it out before doing anything. Each “wire” (left channel, right channel, and ground) was actually made of a bunch of small wires wrapped around the tension relief, and each of the small copper wires had some sort of insulation painted onto it (except for the ground, which was uninsulated). Filing was working to get it off, but going very slowly, so we resorted to touching it to a flame, using pliers a little way down the wire as a heat sink, and that burned it off quite quickly. After that, it was a matter of getting tiny wires through small holes, soldering all of the connections, and screwing the pieces of the plug back together. I now have perfectly working headphones, and can proudly say that I fixed them myself (and with Bevan, of course, who had all the knowledge and did much of the work.)
Never having soldered before, the thing that surprised me was how quickly the actual soldering went. Touch the iron to the wires and heat them, touch down the solder, let it draw in, and then the connection is done. What did take a long time was setting everything up. The iron has to heat up, and the insulation has to be stripped, and the work station prepared, and proper lighting acquired, and a helper to hold the work (If you do not have, as we do not, a soldering stand), and every time you put the iron down for a while, you need to clean and tin it again. I suppose that like everything else, it’s all in the preparation.
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The Internet; or, why I don’t get anything done
I’m back at school after doing not nearly enough work over break. I’ve found that I have perennial trouble doing the reading for my Latin seminar. I mean to, but get distracted by a book, or the internet, or even just sitting there and not really doing anything. I go away and realize this problem, decide that I just need to buckle down and do Latin, without checking my email or wasting time, but it never happens.
If you hadn’t heard, Terry Pratchett has early-onset Alzheimer’s, and is donating half a million pounds to a fund to search for a cure. While looking at different articles on that, I ran into a link to a program called Folding@home, which is trying to find a solution to the misfolding of proteins, which can cause Alzheimer’s among other things, by using the spare computing power of volunteers who download a program to their computers. This led me to the broader category of distributed computing, which is this process of letting your computer work in something in a network of other computers during its downtime. My computer runs pretty slowly as it, is, so I think I’m using most of what it’s got and won’t be joining any of these, but there’s a list of distributed computing projects here.
Also in the category of fun things to do with your extra (or not) time online, a while ago I wandered by way of steampunk into Instructables. Users post step-by-step instructions on various projects. I was fascinated looking through what was there, but don’t foresee having the time to attempt any of them any time soon.
In other news, I think I’ve found a source for a soldering iron (the physics electrics lab, courtesy of my physics roommate, who presumably will also teach me how to solder), so look for that fixing-my-broken-headphones update soon. It will potentially include pictures, if I can get my hands on a camera. Funny how I don’t own any of the things I need for this venture.
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In Which a Watchmaker Fixes a Computer
So after getting home last night, I was lying on bed and using my computer, listening to music through headphones. I moved my computer so I could get up, and it suddenly slid off my bed and hit the floor. The computer itself was fine, but the headphone plug had broken off inside the jack. It had snapped off a good quarter inch down inside, so I couldn’t manage to get hold of it with anything. Unfortunately, because the bit of metal was still in there, the computer was still trying to play audio through it (which obviously was impossible), and not through its speakers.
Said computer is a MacBook, for which I bought the AppleCare extended warranty. AppleCare has definitely already paid for itself several times over, but I figured it wasn’t about to cover this. So, careful not to leave any evidence of tampering, I started removing the approximately seven thousand tiny screws on the case to see if I could remove the keyboard panel to push the piece out from the inside. Apparently, there are some hidden screws somewhere, because I was unable to get it off, and I gave back and replaced everything.
I also searched for stories of similar problems online, and found suggestions to put super glue on the end of some small thing, stick it to the piece, and pull it out, among other things. I wasn’t quite ready to go that route yet, but other people said that the jack inside had an open back, so the piece could just be pushed out, which gave me heart that the repair might ultimately be easy (and thus not too expensive).
This morning I called the Apple support line, and was told I’d have to bring it in for service. After making a few phone calls, I found that the closest place open on a Saturday was the Apple Store in Natick, a half hour drive away. So I made an appointment online, and headed out to the Natick Collection (which used to be called the Natick Mall before someone decided that didn’t sound upscale enough).
I got there and showed up at the Apple store, where I was told they were running about five minutes late. They seem to have underestimated, though, because I was waiting there for a half hour. To their credit, they did have a manager check on what was causing the delay, and reassure me that I would be seen soon. When I made it up to the counter, the service guy told me that indeed, AppleCare wouldn’t cover it, and the only way Apple would fix it would be by replacing the whole logic board, which would run me $700. Apparently, the back of the jack is closed up on a Macbook, so no easy push-it-out-from-the-back solution was forthcoming. He suggested getting a tiny drill bit, drilling a hole in the broken piece, screwing a tiny screw into it, and pulling it out that way. He also brought out one of the little flashlight magnifying instruments doctors use to look in your ears, and showed me that it looked like there was a little nubbin of metal protruding from the center of the piece, which maybe could be grabbed by small pliers. Thus, I left the Apple store, my head hung, problem unsolved by the experts.
At this point I took a detour to Radio Shack to pick up a new 1/4″ audio plug so that I could repair my headphones. More on that in a future post, once I get hold of a soldering iron.
I went into the Tools section of a nearby Sears and examined their selection of pliers. There was one that just maybe would fit in, but I wasn’t ready to spend $10 just yet on a tool I would only use once. I tried Kay Jewelers to see if they would have any small pliers, but no luck. I had similar disappointment at the jewelry counter of the Lord & Taylor next door, but the woman there suggested a craft store, or perhaps the bead kiosk elsewhere in the mall. Once I had ascertained the location of said bead kiosk and arrived, I was told that no, they didn’t have any pliers small enough to fit in my computer’s audio jack, but that I might try Times Square around the corner.
Now, Times Square, as it turns out, is a watch store. A tiny little watch store on the side of the mall, maybe the size of your standard Sunglass Hut. What they did have is a guy working at a little bench in the tiny space behind the counter. I explained my problem and handed over my computer. After a minute or two with tiny tweezers and other mysterious tools, he did what the folks over at Apple’s “Genius Bar” were unable to do without $700 dollars from me, and removed the piece of headphone from the audio jack. And he wouldn’t let me pay him anything for it!
So I walked off, and checked that my computer now played through its speakers (it did), and stopped in the Apple store again to use a pair of headphones from an iPod display to check that it would play through the headphone jack (it would), and had a computer as good as new. Well, not quite–the plastic to one side of the headphone jack got bent over when the plug was shorn off–but as good as can be expected.
So my advice to anyone with a similar problem would be to forget the computer folks, forget super glue and tiny drill bits, forget opening up the case yourself, and take the computer over to your friendly neighborhood watch maker/fixer. Well done, good sir at a little work bench in Times Square. Well done indeed.
No commentsFree Stuff!
Business Week recently published a guide to the best free things on the web. The full list can be found here, and I’d certainly recommend reading through it, but the following listings are my favorites.
LibriVox takes books in the public domain and turns them into audio books, read by volunteers. You can download recordings or volunteer to read a book or part of a book yourself–all you need is a microphone, some recording software, and internet access.
The Internet Archive, meanwhile, is a collection of all sorts of public domain works–books, music, videos, and more.
Google Earth, of course, is an already well-publicized program you can download that lets you view satellite images of the world. My one complaint is that you need to be connected to the internet for it to work.
MIT OpenCourseWare (yes, that MIT) has resources for over 1800 courses online. Some of them are just lecture notes and readings, while others are complete videos of all the lectures.
For a more focused learning experience, BBC Languages has courses in several different languages online.
American Consumer Opinion lets you take online surveys and potentially get paid. I was signed up with them, and did get a check or two (for small sums-$4 or so), but for every paid survey I managed to take, there were a bunch of preliminary surveys where I didn’t qualify to take the actual survey. In the end, there was more hassle than there was benefit for me, at least, but it is legitimate and you do get paid.
Also in the realm of making money online is Google Adsense, which should show up on this page as soon as I convince it to work. If you have a webpage, and don’t mind small google ads on it (you’ve probably seem them online by now), there’s the potential to earn something from it.
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