Sunday, October 30, 2005

Well, since the day is almost arrive and I might not be able to write anything in my blog for the upcoming several days, so I 'd just say it now.


to everyone I know:
I might have done mistakes in the past,
I might have hurt your feelings before,
I could not do anything to fix it,
nor I could easen the pain I've caused,
but...
One thing's for sure, I'm asking for your forgiveness,
For I am humble...humble...

Thank you everyone! Today's the last day in Bandung for me, I'm going away for several days ahead and probably won't have any internet access. But worry not for we shall (most probably) meet each other again directly or bloggily (???) after that. Happy Idul Fitri for everyone of you and enjoy your good time. Seeya!

Friday, October 28, 2005

wrapping things up

Gee, I guess it is time for me to depart from Bandung since Lebaran's already very near. But this year's last moments (week) before Idul Fitri was totally hectic for me. OK, I'd like to wrap up and summarize of what's happened in the last couple of days. First, there were three mid tests held on the week: Kinematics on Monday night, Numerical Analysis and Programming on Thursday night, and in the end there would be Industrial Metrology and Statistics on Saturday morning. Although it is the last week before Idul Fitri, classes and assignments has been very time-consuming as well, not to mention additional activities such as committe-ship and other stuff.

Monday! Kinematics midtest. I had to say that I was pretty sure I did well in the test. But I don't know, there's always that unexpected factor which made disruption out of my prediction. Anyway, all in all, the test went well.

OK, let's see, I had a full-day at campus on the last Tuesday. Mechatronics from 09:00 to 11:00 continued by Matlab programming class until 13:00. Just after that there was Thermodynamics for 2 hours til 15:00. The last one was Machine Elements to the end of the day at 17:00. Thank God I hadn't take the Mechanics of Materials class. If I had, it would have been from 07:00 to 17:00. Ten hours non stop of sitting, listening to lectures.

Wednesday has always been quite a relaxing day. Only one class at this day, Manufacturing Processes from 15:00 to 17:00. After class, get ready to break the fast! Hell yeah!

Thursday, was a bummer. There was a class in the early morning and then one hour void, and then another class, another one hour void, one hour class, void (I took a quick nap here, yay!). Presentation for redesigning motorcycle's brake and life span was at 15:00. Last but not least, Numerical Analysis exam at 19:30. Unlucky! The problems issued in the test was out of the world! Well, not actually, I mean, the problem was strange enough that people were so confused. Finally, the lecturer gave several hints to help out, but still, it was just...uncool.

Friday. The three-men-team finally back in action! Yudhi Somali, Om Anda, and I decided to continue our assignment on analyzing and synthesizing a motorcycle's camshaft and its accessories after several weeks of vacuum. After a little bit of discussion, we decided to share jobs. We were to bring home the assignments and try to do some during the holiday. I got the assignment to get some data about bearings. In short, I have to get a hold of a bearing's standard catalogue (SKF, FAG, NSK, NTN) and adapt the equations from there. It's going to be a thought-occupying matter for the rest of the holiday but it needed to be done. Plus, I was also made to responsible for the sketch and drawing of the objects of camshaft, rocker-arm, and valve systems. That made it two things for me to be taken home during holiday.

Saturday (tomorrow) will be a hell of a day. I'll have Metrology and Statistics exam in the morning and then just after that, I must prepare myself for presentation on drilling processes. For the presentation, worry not about anything. It's the test I'm worrying about. There were rumors that the last grade of "A" issued was 10 years ago and there hasn't been any since then. But I don't know if it was true or not. Maybe it was just some hoax, but I have to admit that the subject is rather difficult. Test plus presentation will be finished around mid-day.
Before the day's over I will have to pay the bills (electricity, phone, water, etc) for the house in Cimahi. In order to do that, I must go back and forth Bandung-Cimahi-Bandung and it's very time consuming. I would have to say that it will spend half of my day. Let's just say I'll be back from Cimahi in the afternoon.
Last moments before going back to Cirebon (or Purwokerto, for that matter) I must do some other things. My brothers and sister has requested several things before I go home and I need to get the things for them. I also want to organize and clean up my room before I leave it for the rest of the week.

After all of those things have been fulfilled, next thing to do is to decide whether I shall go home at Saturday night (to Cirebon) or the next day Sunday morning (to Purwokerto). And finally, off I go...!

OK OK, back to real life. I need to study for tomorrow's Metrology, so...see you again later!

Wednesday, October 26, 2005

i'm not an assistant, mind you

I would've never thought anyway. It was just that, unexpected. You see, I was having this programming class using Matlab (this language has some pluses if you want to work with matrices, maybe I'll talk about this later) and that funny thing happened.

At that programming class I got the seat far behind, nearly at the edge of room. It happened because I had another class just before the programming class so I failed to come early. Anyway, since I sat far behind, I couldn't see clearly to the board (my range of vision is approximately 7 meters, maybe I need to wear glasses already) and I had to step forward several times just to see what the lecturer wrote on the board or showed on the presentation slide. So I went back and forth to the front and my workstation.

There was this one time, when I approached to my friend's workstation up front to ask him several things I didn't understand about the programming. Suddenly, the person who sat behind my friend's desk tapped me on the shoulder. I turned, and I thought that he tapped me because he couldn't see to the board since I was blocking his vision by standing next to my friend's desk. So spontaneously, I set myself into crouching position while kept discussing with that friend of mine.

Just when I was about to head back to my desk, the guy who tapped me before stopped me. And then he asked more or less like this, "Mas (what's the English word for this? Mister? Bro?) klo yang ini bgemana," by pointing to the monitor of his computer, confused of what to do next.

I was like, inside my mind, "Huh?"

But later I realized something. He might think that I was one of the lecturer's assistant! Why? Because during the class, there were two assistants going around the room trying to cover and assist every student while the lecturer was giving explanation in front of the class. And I was one of that person who went back and forth. Not because I was one of the assistant, but because I couldn't see clearly what was written in front!

As of that moment, after the guy asked me the question, I had two choices running around in my head. To ignore him and just tell him to ask one of the assistant, or stay and explain it to him.

I chose the latter, although it was quite troublesome. I came over and asked him in which part he didn't understand. After a brief words with him, I realized that he actually knew nothing of programming, totally nothing. He even asked me some basic stuff that the lecturer already explained in the beginning of the class earlier. It's either he was totally new in programming especially Matlab or he completely didn't listened to what the lecturer had to say. I ended up aiding him for, like, 10 minutes. A very valuable time since during that time the lecturer came up with some new things. But, hey, it's good to know that I could help someone although I was also, basically, a newbie.

Tuesday, October 25, 2005

preaching for kiddies

I have heard it since long ago, that one of our television station was going to have a competition to select young preachers. Now when I mentioned the word 'young', didn't mean that I refered to a middle-aged person or teenage ones. Far more younger.

It was just yesterday that I watched it with my own eyes. Just before fast-breaking time around dusk. A figure of a kid, giving sermon. He spoke with enthusiasm, conviction, and fluent language. I assumed that his age was around 10 or so.

It was actually amazing, to think that a boy of that age, already familiar (not to mention expert, possibly) in the field of religious philosophy. He could even recite several verses from Al-Qur'an itself that I have never been able to memorized it.

It is actually good to know that someone at that very young age already have the capabilities to tell (and invite, of course) people to live according to Islam. But one thing that generated doubt inside my mind was, his preaching style. I observed that the way he spoke resembled one (or many) of the Islamic preachers in old times. Also, the tone seemed too monotonous and gave me the impression that it was somehow made up (as in acting, too awkward). That led me to the hesitant thinking whether he really knew what he was talking about or was it that he just made another ordinary speech, without embracing the very essence itself?

Well, all in all, if the boy who showed on the television giving that sermon actually knew what he was talking about and has a deep understanding on the subject, I would be very proud and amazed. Then again, it was good to have some kids reminded me of religious things. It reflected that there are still so many things that I need to learn. Nice job guys (refering to those kids preaching via television)!

Monday, October 10, 2005

human's body energy seminar

As of yesterday (Sunday, October 9th, 2005), a friend of mine invited me into a seminar. Actually, at that time I was staying at my place preparing myself on doing several assignments for several days ahead such as the report on lab work about workbench and some homeworks on thermodynamics subject. Just after mid day, I received a message in my cellphone noting that there was somekind of seminar held at Sabuga by ITB's chemistry community.

As I still haven't got anything to do at that time plus it's been a while since I met that friend of mine, so I decided to pay a short visit on the occasion. At first, I thought the event would be quite big that there would be a lot of people and I had an image in my mind that Sabuga would be full of people and crowds. It turned out to be not. After I arrived at Sabuga, I couldn't see any crowds at all. So I strolled around to outside ring of Sabuga and then I found a small room filled with people. That was it. I met my friend there and then I was invited to join the seminar. At first, I was a little bit unspirited since I had a load of assignments waiting at home and I'd rather be doing it. But what the heck, I decided to observe. Who knows I might actually get something useful from it.

So I went in and sat down. It appeared that the seminar was held by a chemistry community whom called themselves by the name Alchemist (I didn't quite know the details, I forgot). The seminar itself was bringing up the topic of chemical energy and human body. There were two speakers as I recalled. The one was some person from energy-based martial art (tenaga dalam thingies) and the other one was a bachelor in chemistry science.

OK, first, I'd like to recall what the scientist said. Basically, what he talked about was something which I've learned years ago at my senior high school, on how human's body can generate energy. Yeah yeah yeah, he started talking about those carbohydrates, protein, cells, glucose, ATP, and stuff and stuff. When I sat there, listening, it was like going back to my times at senior high school. Back then, on my high school era, I had always been bored with that lesson because there had been just so many things that I couldn't understand and it had made several chain reactions or links. Therefore, if you lost a link, you'd have a hard time trying to understand the rest of the process. In addtion on why I could not master the subject very well would because there had been so many bio-chemical terminologies, properties, and roles I could not remember all of them at once. In short, I had been to lazy to study on that subject.

Now, the second speaker on that seminar talked about human's energy. Well, since he was actually a person came from the field of martial arts, his topic was around on applying those energy created by our body to the surroundings. He supported that which the first speaker came up to with and agreed upon his sayings although he didn't fully understand it. But he added that only several percents of the energy generated by the body could be channeled to do things. That was, he said, where the martial arts came in. It helped people to efficiently maximize their energy channeling so they could use all of the energy produced by one's body. Also, he told the participants of the seminar that we could also concentrate that energy into certain point in our body. For example, to carry a chair or tables, you had to use both hands to grab it and perhaps your hip to support it. Why do you have to waste such efforts if you could just concentrate all of your energy to one of your finger and lift the chair or table with it?

Another thing that the second speaker said was that about self-suggesting. Or probably, in they way I grasped it, you could also call it as a self-confidence, self-motivating, self-perception, or whatever self-thingies you'd call that. Basically, he said that we could set our mind to one perception and it will happen according to it. One's mind perception is so strong that it could change things. Sounded kind of philosophical to me at first, but then he gave an example. Some people would call this a mind game. He raised his hand and told everybody in the room to concentrate to and only to his hand. He also started to continually telling people to focus. Now, when I say continually, it was like he's going to hypnotize people but that wasn't it. He didn't hypnotized.

And then after a long while, he stopped. He started to walked around asking people what they saw. He asked the audience whether they saw his hand deforming, and then several people raised their hands. Then he asked whether any of the audience saw his hand becoming longer, then, again, several people raised their hands. Several questions that he asked were the emergence of aura around his hand and the disappearance or addition on one of his finger.

The conclusion that he brought was that, our mind can do anything, if we believe in it. He also added that his brains and the audience's were somehow connected so that he could know what's in the audience's mind. The power of the mind's perception could do a lot of and change things and so on and so forth. He even said that, in the most extreme case, one could turned oneself into a dragon or whatever. Well, I couldn't believe that far, but it seemed that it resembles genjutsu or illusionary technique or even hypnotize. I don't know. Mind's perception.

But it was a pity that he didn't tell us (the audience) in details on how to do so (channeling energy, strengthening mind's perception, etc). All he said that it all needed a lot of intensive training and everybody can do it. In the end, the second speaker ended his presentation with a quiz giving the audiences gift in form of cassettes of his recording (what the?), supplemental drinks, and several vouchers.

Saturday, October 08, 2005

problem with camshaft

Yesterday (Friday, October 7th, 2005) I skipped the meeting with lecturer about my Machine Elements' assignment. Well, actually it wasn't just me. The rest of my team -each and every of them- skipped it also. It was because we hadn't made any progress at that time so basically, we didn't have anything to report to Mr.Pulung.

It appeared that analyzing (just) a camshaft wasn't that easy after all. You see, at first we were told to analyze any form of mechanical-rotary-shaft. Since one of my team member was very interested in motorcycle stuff, so he pointed out that we should analyze the camshaft. Although I didn't know anything about camshaft (nor anything about motorcycles in this case), we agreed to do so.

Why did I agree?

When he presentate the thing to me, the camshaft was a tiny-sized and was only equipped with two bearings and one sprocket as its accessories. So I was like, "Hey, I think it's going to be rather easy."

But that was where I got it all wrong. OK, it was just that one shaft, two bearings, and a sprockett. Ideally, all you have to do is count the loading along the shaft, how much force the bearings can stand, and torsion of the shaft itself. So be it.

But no! Those weren't all. Since camshaft's job is to move the rocker-arms, we have to calculate how many force loading the rocker-arms would inflict on the camshaft itself. Plus, since there was a sprocket, we also have to calculate the power transferred by the chain, plus the role of a tensioner to the chain itself. It didn't stop there! There was this angle between the rocker-arms and the camshaft and we had to calculate that also, the properties of spring inside the valve, and so many more things that needed to be taken into account. About the angle, since motorcycle's components are made with precision, we couldn't just make guesses. This is where it went quite tough. When we couldn't find the standard in any books, we had to measure it by ourselves. Sigh!