I havent checked on my blog for a long time. Around 2 months. But now, I have absolutely nothing to do. And I’m in front of this brand new computer in Engineering General Lab and suddenly I feel I wanna update my blog.

There are too many things happened in the past 2 months. But I’m not excited to share it here. Some are not a very good things, and some are just the things I would like to keep just for myself.

Soo, here I am now. In the first semester of the 2009/2010 session of class. I had actually got accepted in my major in aerospace since last semester. But I still have some first year subjects I hadnt finished yet, so I start taking my major subjects this semester. I was so worried about taking my major subjects, I was so afraid that it would be difficult, and that I wouldn’t be able to handle it all. But aside from that worries, I was pretty excited. Cos it means that I’m one step closer to the thing I really like and that I have dreamt about my whole life. Aerospace.

The subjects I’m taking now is:
· Fluid Mechanics
· Differential Equation and Linear Algebra
· Engineering Materials
· Thermal Science
· Principles of Flight
· Aerospace Engineering Lab
· Ethics and Fiqh for Everyday Life
· Leadership and Management

The last two are the university requirements. So they’re not related with my major.

Fluid mechanics.
We’re studying about the properties of fluid. It’s behaviour and it’s activity. It’s an interesting subjects. And I got a very very good lecturer (aside from the fact that he gave us a pop-quiz today). So I always sit in the front row of the class and just listen, and write, and listen, and write :p

Differential Equation and Linear Algebra
The third mathematic subject that I take. I took Calculus I on my first semester, Calculus II on my second semester, so this is the third one. Some people said that this will be much easier than Calculus II. But I cant judge just yet. Cause we just had one class and it was pretty boring cos the lecturer was explaining something that I have learnt on pre-calculus (bridging Math). I don’t know why he taught us that. I don’t know whether it’s related with the subject or not. But it was not an exciting class. But I hope it will get better in the next weeks.

Engineering Materials
Studying the properties of materials, not my interest. If it was, I would have chosen a materials major now! :p Still, apparently I have to study those. But in the middle of studying the properties, we have to study the chemistry sturcture of the materials, and I love chemistry!! So I like this subject now! LOL.

Thermal Science
Hmm, boring.

Principles of Flights.
The most exciting subject ever!!!
I came to the class for the first time, and the first thing the lecturer did, open up the video of a pretty cool aircraft. Hell yeah! I never taught there would be a class, really talking about aircrafts, watching video of aircrafts. I mean, I know there are, but I never imagined it like that. It was soo soo cool.

The rest subjects, I’m not interested enough with ‘em to explain them.

Soo, here I am, taking the biggest credit hours of my life (19.5), excited, and just hoping that I can handle all of them.

...checking for update.
No more update I think.

PS. sorry if there is any grammar error. i wrote this in a hurry cos i was late to go to class! LOL.

Engineering Mechanics: Dynamics
Dynamics is a branch of knowledge, studying kinematics of particles and rigid bodies, kinetics of particles and bodies, Newton's laws of motion, equations of motion, work and energy methods, impulse and momentum.

Newton's laws of motion.
Newton.
Sir Isaac Newton.

He was born on 4 January 1643. He was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian and one of the most influential men in human history. His Philosophiæ Naturalis Principia Mathematica, published in 1687, is considered to be among the most influential books in the history of science, laying the groundwork for most of classical mechanics. In this work, Newton described universal gravitation and the three laws of motion which dominated the scientific view of the physical universe for the next three centuries.

Newton’s Laws of Motion: (just a preview)

First law: Law of Inertia
There exists a set of inertial reference frames relative to which all particles with no net force acting on them will move without change in their velocity. This law is often simplified as "A body persists its state of rest or of uniform motion unless acted upon by an external unbalanced force."

Second law:
Observed from an inertial reference frame, the net force on a particle of constant mass is proportional to the time rate of change of its linear momentum:

F = d(mv)/dt

When the mass is constant, this law is often stated as, "Force equals mass times acceleration”:

F=ma

the net force on an object is equal to the mass of the object multiplied by its acceleration.

Third law:
Law of reciprocal actionsWhenever a particle A exerts a force on another particle B, B simultaneously exerts a force on A with the same magnitude in the opposite direction. The strong form of the law further postulates that these two forces act along the same line. This law is often simplified into the sentence, "To every action there is an equal and opposite reaction."

Newton showed that the motions of objects on Earth and of celestial bodies are governed by the same set of natural laws by demonstrating the consistency between Kepler's laws of planetary motion and his theory of gravitation, thus removing the last doubts about heliocentrism and advancing the scientific revolution. In mechanics, Newton enunciated the principles of conservation of both momentum and angular momentum.

In mathematics, Newton shares the credit with Gottfried Leibniz for the development of the differential and integral calculus. He also demonstrated the generalised binomial theorem, developed the so-called "Newton's method" for approximating the zeroes of a function, and contributed to the study of power series.

This so called Newton’s method is introduced in my kulliyyah subject Calculus I, and I found it very helpful to be used for approximating the zeroes of a function and of course, to study the complicated power series.

Okay, I know I have explained more about Newton than about Dynamics. It's because I think all Newton's laws of motion are very genius, and are able to be applied in real life. And they really have dominated the scientific view of the physical universe :)

Newton, you rocked!


Source:
Wikipedia.org

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