Today is 23 Oct 09. 2 more days( not counting today) to the Os. Really worried. Every night I juz can't get to sleep. I keep wondering about the exam situation. About the results day(which is still far away). And whether my results will match with my standards in school and will meet my targets. sigh... all these thoughts just playing around in my head every night.
I'm feeling really sleepy now. Just finished reading papers alongside with the dictionary(well only 1 section). Maybe its the gloomy weather. Trying real hard to get A1 for english but i think its kinda too late. Well, better than being complacent and doing nothing right. Hopefully for once I will do well for compre. I've been practicing it for a few days now so I really hope that it will help me in the O lvl English paper 2. Just as the saying goes: 'God doesn't help anyone who doesn't help himself'. Also hoping that the vocab section won't be too arcane for me. haha. Really hope that the expo essay question is do-able. Hopefully something close to my heart. So much for hoping. Now i better get cracking.
Hi guys. I'm currently taking a break after mugging all those lengthy SS notes. Recently my obsession towards relativity has grown. I've grown more curious towards how this spacetime curvature according to Einstein creates what we feel as the mysterious force - gravity. Finally I kinda understood thanks to a certain website. Here's how it works.
Imagine a universe with 2-d spacetime (yes i noe there's supposed to be more dimensions to spacetime but for simplicity's sake we make it 2d)
As shown in the diagram , there's 1 dimension of time(vertical axis) and 1 dimension of space(horizontal axis). The red thick line represents a planet moving through time. The blue line represents a small object, eg. an apple, moving through time also. However, this diagram is flawed because it doesn't show the curving of time. It only shows the curving of space. As a result, the path of the apple moving through time is parallel to the path taken by the planet - implying that the apple is not influenced by the planet's gravity.
This is a more accurate diagram of the curving of spacetime. Similar to what is shown above, the thick red line is the path taken by the planet and the blue line is the path taken by the apple. However, notice that the path of the apple is curved towards the path of the planet. The geodesic(straightest path traveled on a curved surface) of the apple is such that the apple moves closer to the planet in spacetime and eventually comes in contact with it. This means that what we feel as gravity is actually the natural movement(in other words geodesic) of our bodies through the curved surface of spacetime due to the presence of a large object i.e the earth. Isn't it amazing that Einstein came up with something as elegant as this to explain gravity? Even Sir Issac Newton, the man who discovered gravity, is unable to explain how gravity actually works. Ponder over it. I wonder how einstein conveyed the idea of spacetime curvature in the language of mathematics. Just too profound for a layman like me.
Hey guys.
Sorry for not posting anything for so long. I'm just too lazy to do that. Yes O levels is coming in a bout 14 days time (incl. today). I think that I have wasted too much of my study break on maple - considering that i reached lv51 in a rather short period of time. Crap. On the previous days I spent most of my time on the comp and then around 1hr - 1.5 hrs on mugging. Really imba. Erm. Okay lets make a checklist to see whether I FEEL prepared or not for each O lvl subject.
English - Not completely prepared
HMT - I did the bare minimum
Maths - Havent revised yet ><
AM - Havent revised yet ><
Geog - read thru Natural veg. only ><
SS - 2/3 topics memorized =)
Phy - Bare min.
Chem - Bare min.
Bio - Bare min.
Well its clear that I'm unprepared for this big exam.Its time for me to put aside that stupid comp. and start working dam hard. Going for Lit remedial today. At least I'll get a few extra tips and hopefully some motivation from Ms Mos. I want an A1 for lit just like how i got it for Prelims. Pls..... I did it once and I'll do it again. Anybody mug finish yet????
