Last day of May: Time Flies!

Without realizing, 5 months of the year 2008 had passed. Time passes so fast.
Today is the last day of May already, tomorrow is a starting of a new month, June.
After June, half year is gone. And it will never come back forever and ever...

Sometimes we really waste a lot of time in day-dreaming, sleeping, playing, doing useless thing..we didn't utilize the 24 hours given to us each day. We just wasted it like that. Maybe time is free, we don't need to work hard to earn it, we have it every single day when we open our eyes in the morning. We always have it. But if time is like money, we have to work hard to earn it, then maybe we will make use of our time wisely, as we will not simply waste our money.

Nevertheless, when time is passed, it will never come back to you again. But, money is some 'thing' that we can earn it back, using time.
So, money will never equal to time, but time can be money.
Time is everything in your life, when you no longer have time in this world, that means you are no longer belong to this world. Your life is ended and you got no turning back.

Therefore, let us appreciate the time we have now to do something that will benefit to you and other people.
It is like energy input and energy output. In a mechanism, the energy output will never be greater or equal to the energy input. Some energy will lost during the process of conversion of energy.
The time we have now is the energy input, and how much energy output we can contribute is all depend on us. We need to have high efficiency(as energy output/energy input=efficiency). Spend your time wisely.

In conclusion, let us work hard together to become a high efficiency mechanism(human) in time!

Osmosis | Forum

I've been learning plasma membrane for the pass few classes of biology.
Today learned about osmosis.

Osmosis is the movement of water molecules from a region of high water potential to a region of low water potential through a partially permeable membrane.

What is Water Potential,Ѱ? Water potential uses the symbol Ѱ. (read as 'psi')
Water potential is the measurement of free kinetic energy of water molecules.
When we have a pure water in standard temperature(25*C) and pressure(1atm) which has no impurity inside, the Ѱ is 0kPa.(Ѱ can be 0 or less than 0 only, it cant be +ve)
When we add solute(impurity) inside a pure water, the water potential will decrease to a negative value depending of the value of Solute potential Ѱ(s).[always negative]
Solute potential, Ѱ(s) is the lowering of Ѱ due to the present of solute inside the water molecules.
Therefore, Ѱ=Ѱ(s).
Why the Ѱ will be lowered when a solute is added in?
This is because the water molecules is used to dissolve the solute particles and therefore there is less free kinetic energy in the water molecules.So, Ѱ decreases.

Next, is about Pressure Potential Ѱ(p).
Ѱ(p) exist in plant cells only cause only plant cells have cell wall, which exert pressure on the water molecules when the plant cell is turgid. When a plant cell is turgid, the cytoplasm will press against the cell wall and the cell wall will press back the cytoplasm to counter it. The pressing back of the cell wall to the cytoplasm exert Ѱ(p).(This part i think i miss out something, but cant think of what is it..swt)

Ѱ, Ѱ(s) and Ѱ(p) is related by an equation : Ѱ=Ѱ(s)+Ѱ(p).
This is important in calculating Ѱ at equilibrium and to see the net water movement of one cell to the another.

Another new thing is incipient plasmolysis. We know that plasmolysis is the shrinking away of cytoplasm from the cell wall when there is lack of water in the plant cell. The plant will becomes flaccid and eventually wilt. But what is incipient plasmolysis?
Incipient plasmolysis is the point when cytoplasm starts to pull away from plant cell wall.
In other words, when the cell wall started to exert no Ѱ(p) to the cytoplasm, incipient plasmolysis is occurred. Full plasmolysis is reach when cytoplasm is completely withdrawn from the cell wall.
Besides, today I only know that where is the inside of cell. Plasma membrane is the real boundary of a cell, not the cell wall! So, inside a cell is referring to everything inside the plasma membrane. The region between the plasma membrane and the cell wall (if the cell is plasmolysed) is not considered as the inside of cell.

Next, active transport.
Active transport is the movement of ions/polar molecules through a carrier/channel protein against their concentration gradient by using energy in the form of ATP.
I forgot the detail already, cause half way learning this Mr Low came in the class and given a 'speech' to us. After the speech no time to finish the explaination so I also forgot already..but will continue next week. Haha..so active transport for next week ba.~!
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Just now created another new forum for Boon Oong. Actually last time create forum before with wei lun de, but after some time it just dead~.. This time Boon Oong will be the admin for the forum and I'll be the vice admin to help him out. The forum is under construction, but after it is done then I'll post the forum address here, in my msn personal message, friendste...haha.. And hope everyone can join to support this forum!

What've I learned today..Phase Diagram

To reinforce my memory on what I've learned today, I'll write about Phase Diagram.
There are 2 phase diagrams I learned during chemistry tuition class today.
Ok, firstly, let me explain phase diagram for a typical substance(x).



As shown in the figure above, a phase diagram is plotted as pressure against temperature.
There are 3 bold lines in the figure, which are Red, Green and Blue. And there are 3 areas within the 3 lines.
As shown, the left portion of the phase diagram is a substance exist in solid(S) state, while middle is in liquid(L) state; right portion is gaseous(G) state.
The Red line represent solid and gas exist in equilibrium, which means the amount of solid of substance (x) = the amount of gas of substance (x).
The Green line represent solid and liquid exist in eqilibrium; while the Blue line represent solid and gas exist in equlibrium.
There are 2 points in the phase diagram. The Triple point is the point where S,L&G exists in equilibrium; while the Critical point means that L&G are indistinguishable, which means we can see substance (x) as in gaseous state only.

After that, I learned about the phase diagram of Water & Carbon Dioxide.

Water has a special kind of phase diagram i.e the Green slope has a negative gradient (typical substance has the Green slope as positive gradient, as shown in diagram).
Water has its triple point at 0.006atm and 0.01*C. At 1atm, water has a melting point of 0*C and a boiling point of 100*C. And its critical point is er..er.......I forgot edi...paiseh >< (I can't find the phase diagram of water in wikipedia, so just imagine the Green slope of the diagram shown has a negative gradient, that is the phase diagram of water)
When we increase the pressure beyond 1atm, we found that the melting point of water decreases but the boiling point of water increases.
Therefore, the higher the pressure, the more readily for the water to change its phase from S>L.


Next is the phase diagram of Carbon Dioxide. Carbon dioxide has a typical phase diagram, which means the shape of the phase diagram of Carbon Dioxide is almost the same as the phase diagram shown in the figure.
CO2 has its triple point at 5.1atm and -57*c and Critical point at 73atm and 31.1*C.
Carbon dioxide can only exist as S&G at 1atm (normal pressure), it need a pressure as high as 5.1atm only can change to liquid, that's why Solid CO2(dry ice) sublimes(S>G).
When we increase the pressure of CO2, we found that the melting point and boiling point of CO2 increases.
Therefore, the higher the pressure, the more difficult for the CO2 to melt.

There are more about the phase diagram but I found it to be hard to write in here. So I think I'll just stop here.
This is just a subtopic of chemistry form 6 under chapter 1 only and there are so many things to learn and hard to understand too(I mean your brain need to really 'turn' and digest it before you can really understand).

Actually writing something here of what I've learned can really help me to reinforce my memory and it can be my revision note too! haha.. As I am the one who actually can 100% understand of what am I writing.
But some of it really hard to write it out in words la..So, if I see something that I think I am able to write it out in words, I'll write it here! haha..that's quite fun and interesting~ this also makes me to 'hope' for a new knowledge to write it here!
Hope I can continue on this for the next thing I learn.^^

27th May,2008

Today morning woke up late cause the stupid alarm didn't work. I actually promised my Uncle to prepare everything before he come to bring my brother to my Aunt's house at Jin Bao(Perak) for holiday. But when the time I woke up is already 8 something and he is in my house already.
My parents went for the church retreat program and were not in from Sunday till this evening.
So, this 2 days I'm the one who is in charge of taking care of the house and my siblings, without my mom in house is quite hard to manage..especially the cooking part...haha..

Later I went for chinese society meeting with my Uncle's car cause he'll pass by ACS. Meeting during holiday, then suddenly get involved in their 'lian yi hui'. Going to sing on stage on that day with them. I'll just open my mouth with no voice coming out..haha ..just joking..But the song is damn high la..can't reach the tone..><
The meeting started at school but later all of us went to one of the member house cause they need piano for the song. In the house, 1st thing we did was sound testing, they asked me to sing 'ah, ah , ah ah, ah ~ ~'' , what the heck, so malu la...

Next, bio tution. This week got 3 bio tution, monday, tuesday and friday, is the replacement classes for future class. So, learned all about plasma membrane, brain full of phospholipid, transport protein, ions, polar molecules, osmosis, diffusion......bla bla bla .... Just the membrane of cell only need to learn so many things...Hate to go delta hq, cause there always jam, the road change here change there, cause of the stupid bridge la, when will it done o?? At least need to jam 1 hour to go and back..wasting time..

Until now I still don't have maths and chemistry book, haih.. asked one of the church member to bring it last Sunday but he didn't..I need to read leh..if buy new one very expensive..one chemistry book (good de) need Rm 150++, after discount Rm 130++...so better buy 2nd hand book.

Next, driving. Till now I still haven't got my license yet. I mean just got through till amali class only..still haven't learn how to drive, and then test , then exam, then get P..... still got long way to go..hate to go to the driving school there, damn bored, no friend accompany me and always need to wait for a very long time for my turn..Next week will go there 4 days consecutively to learn..what a boring week will be for me..haih..

And Sunday school, the teacher asked me to in charge in the discussion of topic of Evolution by Charles Darwin. Christian don't believe in this theory (rather hypothesis), we believe that this theory is wrong.... So we will discuss about it during Sunday school.

What more to say?? Hmm...blog is good...write something in your blog and the future you will read it and laugh at it..haha..but sometimes present me is too lazy to write in blog cause of many factors, sorry to the future me ^^.. haha.. what am i crapping about? Can't think the title of this passage, so just put the date as the title ..~~

Ok la, that's all. Wish everyone have a nice day.

2 weeks Form 6 life

Yea~ it had been 2 weeks after I enter another stage in my life--form 6.
I am still alone la..even thought now my class have 3 guys but girls seem to have increase faster than guys. Can't blame la, guys are almost extinct in form 6(quote from my cousin). After holiday, 2 guys are changing to art stream, leave me alone singing 'lonely'. Haha.

Still is ok, I started to know the girls in my class already. That day I walked around the class with the class name list in my hand and asked their name 1 by 1 and trying to remember all of their name. I almost can remember all but I still not really can recognize some of the indian girls. must say sorry to them la cause I rarely mix with indian girls and so I cant remember their face or their name. They look almost alike for me.Haha..Sorry sorry ..

And there is 1 memalukan de thing happened to me..haihz...never thought of this kind of thing will happen de..haih haih..let them(dun need mention name la~)laugh till their tear drop..swt..
Never mind, 'kai xin jiu hao'...haha

Maybe I have too long holiday already, too long never been in class to hear teacher teaching, these day in class i also felt asleep when teacher is teaching. I tried my best to concentrate but still will keep yawning. Haih, if like this how can I get good result la.

Another thing I noticed is that my classmates their English are good, excellent..(as i obseverd these days)And my English is damn poor if compared to them. Haih, cant blame, I am from a typical chinese family and I just get to speak English at school only, in other situation when open mouth is all mandarin. I always get stuck when I am announcing something to them.Next, is my pronunciation, which is bad also.

I think that's all la.
Study 2 weeks holiday again..but with many homework....swt~

Me VS 18 girls

Sadly to say but I failed to get my JPA scholarship. No more study abroad(that is my dream), took few days only I really calm myself down and accept the situation now. Ya, I must go form 6 and start everything all over again. And even I got 4 A flat also not guaranteed that I can get to study in the course that I wanted in local U. Abroad, I don't know, hope they will be some organization(private or gov) can offer scholarship for form6 leaver to study abroad, like JPA.

I've been through 4 days of orientation week for form 6. A damn boring week. And today, finally we got to divide into classes. Tomorrow will be studying already.
As stated in my title, my class, which is L6Cergas, have 18 girls and 2 guys. But soon, another guy(Arif) will be move to art stream, which means that I will be the only guy in the class. Really OMG! Never expect this thing will happen. How am I gonna to survive in the class??

Here is roughly what had happened in the class:
I brought the girls into the class and started to clean up the class with Arif. Just simply swept through the floor as teacher asked. Then both of us sit side by side and talked crap till we got nothing to talk. Since our class teacher is busy so I also went out lepak and 'meditate'. After don't know how long, I discussed with Arif of automatically introduce ourselves and get mix with those girls. He agreed and asked me to go 1st.(he didn't follow me to the front,swt) I took a deep breath and with a little courage of mine walked to the front of the class and started my talk.
"Ahem Ahem..Hi, I am from ACS" "Hmm, my name is Lee Zheng Yii"
"HI~!" *they respond*
Note: my eyes didn't look at them, cause I fell not comfortable talking in front of so many girls.
"Can all of you please introduce yourself? And tell me which school are you from?" *look around*
"Ok, start with you" *An Indian Girl*
Then, 1 by 1 I asked them to intro themselves. After that, I talked some crap with them, and ask them to ask questions about ACS. They asked some questions. And I answered with some bad answer. Cause I also not really know how to answer. Haha.. Then, teacher came in.
Our form teacher is a Malay girl name Pn. Hasimah. She will be our Biology teacher. Heard from senior that she is not good.(I think so is true, she is quite young teacher)
Don't care so much, form 6 must be independent already, can't keep depend on teacher only.
She asked to select a president, I am the only guy in the class and I am an Acsian, so I've been selected as class president. And vice president is an Indian girl....
I think that's all la for my 1st day in class.

Haih, really don't know how am i gonna to survive in the class for 1 and a half year. Form 6 life will be tough~ ~

To realize...

From 11/3 till today, that is 8/5, is been nearly 2 months I wasted in this year.
Yea, 11/3 is the day i came back from NS, i thought i could use this 2 months to do something good i.e. can learn something, but i just wasted it mostly in front of a computer and sleeping like a pig.
I sleep a lot during my free time, 1 day at least 10 hours, wake up a while on computer till i sleep(almost half a month i am like that).
I know and i did realized that i cant continue on this piggy routine but i cant control myself. And now, when schooling time is around the corner, i only fell regret. Haih..what can i do?
Wednesday went to my 1st form 6 chemistry tuition, that time i only know that my brain is like not working, become very slow in learning and like stupid-er. I was omg and knew that I must start to prepare myself to get into the mood of studying already, can't play play already and must really concentrate on the more important thing than the useless thing. Must start to train myself to sleep less, get rid of my addiction to computer and mentally prepare to face the hardest thing that i gonna to study.
If i got form 6 books i should had read them already but the problem is I don't have any and don't know which 1 to buy.So, just hope that i can really catch up in form 6 and be more hardworking in the next 1.5 years to get my 4 A flat. Yea, that is my target result, I want to get it and will work it out to get it..I PROMISE to myself!!

Form 6?

Eagerly waiting for JPA Scholarship, but I know is quite impossible for me to get that.
So, decided to go form 6 if I failed to get JPA.
But form 6 is....haih....Hard, Stressful....might torture me.
STPM is one of the hardest exam in the world, this is due to the wide syllabus which we ought to study in 1.5 years and everything will be tested in a single STPM exam in just a few days.
Ya, a few days determine whether you live or dead.
Nevertheless, I have no other choice beside form 6. Cause other pre-U courses are too costly and will cause financial burden for my parents to support me on that, even with 100% waived of tuition fee. All those miscellaneous and living cost in the college are hard to handle. So, the best and the only choice for me is form 6 if i failed to secure JPA.
Haih, regret to didn't take it very seriously during SPM exam. The consequence is I got a not good not bad result. At least it is consider average among students that apply for JPA.
I read about a statistic that state JPA only give 20% of their seats to non-bumiputra students only, that is around 400 places among the 2000 place that is offered. It is unfair!
No matter how, at least I have a way out. Think optimistically, the hard time during form 6 will be able to mould me into a tougher person than now, become more mature and can to solve problem better. That is what I hope for form 6.
Another hope is to get a 4.00 for my STPM and apply scholarship again to study abroad! (That will be quite impossible if I didn't work hard toward it)
Anyway, I believe that God will lead me to the best path for me to walk in this life. He will be walking with me !