Mingshern’s Blog

    Well, i received a comment from Dinash about the P.O.E.T which says that he can prove the Law of Conservation of Matter wrong. He says that matter can be converted to energy and be converted back into matter using the anti-matter theory, otherwise known as teleportation. Well, i wouldn’t say thats false. But wat im trying to stress here is the Principle of Equivalent Trade. You see, in the process of convertion from matter to energy and from energy to matter back, the total ‘value’ of it will stay the same. I may not know how to calculate the ‘value’ of the matter or energy, but i know that it stays the same. Reason? Simple, if it doesn’t stay the same, then the matter converted back from the energy will be something else, right? Matter1 = Energy = Matter2, therefore, Matter1 = Matter2. From that equation, i’ll say that it is Equivalent Trade. Matter1 was converted into Energy of the Equal Value. Then this Energy was converted back into Matter2 which is of Equal Value as well. That is an example of Equivalent Trade.

    Another thing that attracted my attention about his comments are these words, " I also believe that every element differs from the other by just the
proton number. If i can find a way to add protons into iron i can be an
alchemist. Iron to gold. Love it huh. " Well, i also think that elements differ by their proton number. And like he said, if we can find a way to add protons into an atom, or remove protons from an atom, then we can change the element. That’s alchemy. Well, alchemist those days, tried and did many experiments and researchs, to create/find/discover the ‘Philosopher’s Stone’, which they say could be used to change lead into gold. Some even said that it could be used to achieve eternal life.

    Well, accoring to the anime series, ‘Fullmetal Alchemist’, " Alchemy is a science where one understands the structure of a matter, breaks it down, and then rebuild it. If used correctly, it could turn plain lead into gold. However since it is science, the principles of natures still apply. You can only create something of a certain mass from something wif the same mass. It is the Principle of Equivalent Trade. " The Philosopher’s Stone in ‘Fullmetal Alchemist’ allows the user to be unbound by the Principle of Equivalent Trade. In other words, the Principle of Equivalent Trade no longer applies. What does this mean? This means that he can use alchemy at his will. He can create something out of nothing. Thats the power of the Philosopher’s Stone in ‘Fullmetal Alchemist’. Cool huh ?

    Hmm, i guess thats all this time in this post. Its 2.00 am in the morning. Gotta go sleep now. =)

    Well, today’s my Physics Paper2 test…and theres a few question which i can’t solve but i feel so stupid at one particular question that i cannot solve. Well, some of you out there might say, " Come on, its just a few question, i cant even answer a single question in my physics test! " Yeah, you may be right, but i really feel angry at myself for not being able to answer it. You see, i really know how to work it out, its just that i didn’t think of it during the exam. And after its all over, i asked one of my friend, and she just told me the way she did that question…and then i was like, " Yeah ! How could i not think of that??? "

Well, this is the question that made me feel so stupid at the end of the test. The question is broken into a few parts, but i’ll just skip it all and go on the the question that really made me feel so stupid, OK? :

A bullet was shot from a gun towards a target which is hanged from the ceiling. The bullet’s mass is 5 g while the target’s mass is 0.495 kg. The bullet moves at the speed of 400 metres per second. After the bullet hit the target, it gets buried in it and moves along with the target.
(click the picture to see a bigger and clearer version of it. I don’t know why it becomes blurry and small in this page)
a) Find the speed of the target and the bullet after it was shot
b) Find the maximum height that the target will be able to reach

Well, a) is kinda easy for me, as i could solve it.

a)            
        Total
momentum before = Total momentum after
      (400 ms-1)(0.005 kg) + (0 ms-1)(0.495 kg) = (v)(0.005
+ 0.495)kg
               
                
              2 kgms-1 = 0.5kg (v)
               
                
                
      v = 2 kgms-1/0.5 kg
               
                
                
      v = 4
ms-1

However, the problem is with question b), i cracked my head for some time, but still was unable to think of a way to solve it. In the end, after about 10 minutes, i skipped that question and move on to the other questions. At the end, i go back to this question, and think more. But, im still unable to think of a way to solve it. Finally, i pass up the test paper with that question blanked.

After that, i went to ask one of my friends on how to solve that question. She just reply me, she calculated the kinetic energy of the moving body and then convert it into potential energy to find out the height. Then i was like, " Eh, how come i didn’t think of that? "

b)       Kinetic energy = Potential energy
               
      ½mv² = mgh
     ½(0.5 kg)(4 ms-1)² = (0.5 kg)(10 ms-2)(h)
               
    8 m²s-² = 10 m s-² (h)
               
            h
= 0.8 m

There, the answer should be 0.8 metres in height, but its too late now. I really feel stupid coz i know how to do it all along. Its just that i didn’t thought of it. Feel so foolish. The question is easily solved using some application of the Law of Conservation of Energy. But that didn’t even crossed into my mind. And here was I, talking so much about the Law of Conservations and the Principle Of Equivalent Trade, haha!

~Why I am not studying???

Because :

No Study = Fail ………………….. ( I )

Study = No Fail ………………………. ( II )

By Combining equation ( I ) & equation ( II ),

( I ) + ( II ) :

=====> ( No Study + Study ) = ( No Fail + Fail )

By Taking ( Study ) as a common factor in the left
hand side
And Taking ( Fail ) as a common factor in the
right hand side

=====> Study ( No + 1) = Fail (No + 1 )

By Dividing both sides by ( No + 1)

=====> Study = Fail

SO I ADVICE YOU TO STOP STUDYING

    All right, this shall be Part 2 of the whole Principle of Equivalent Trade (P.O.E.T) thingie. So…i’ll continue from where i stopped the previous nite (actually 2AM in the morning) All right…as i said in the previous post, the P.O.E.T can be used to explain the Law of Conversation of Matter and the Law of Conversation of Energy…right? Now i’ll show you wat i mean by it…First of all…we have to look into the 2 Laws…and what do they mean by it…

Law of Conservation of Matter:

The Law of Conservation of Matter states that, " Matter cannot be created nor destroyed "

 

Law of Conservation of Energy:

The Law of Conservation of Energy states that, " Energy cannot be created  or destroyed, but can be converted from one form to another "

OK…thats about the two laws…what about the P.O.E.T ?

The Principle of Equivalent Trade:

You must present something of equal value in order to gain something of the same value

    All right…now we have define all the three stuffs we’re talking about…Now, how are they related to each other? Lets take an example, lets say u have 100 kJ of electric energy, and you use it to power a light bulb, you get light and heat…right ? Assuming that all the electric energy is converted to only light and heat, i.e the light bulb is 100% efficient, and all the electric energy is used, you get something like, 100 kJ Electric = x kJ light + y kJ heat, right? According to the Law of Conservation of Energy, energy cannot be created or destroyed, therefore, the amount of energy before and after should stay the same right? That means that, x + y = 100, right? Now, that is also Equivalent Trade, as the amount of energy you give equals to the amount of energy you get…Do you get what i mean? To make things simpler, lets put it this way, you have 100Kj of energy in the first place, and after the process, you still have 100kJ of energy rite? The amount is equal, only its form has changed. That’s what you mean by Equivalent Trade, you trade in 100kJ of electricity to get back 100kJ of light and heat.

    OK, that’s about the Law of Conservation of Energy, how does the P.O.E.T relate to the Law of Conservation of Matter? It is the same concept, lets take an example, a burning reaction between Magnesium and Oxygen, you get Magnesium Oxide, right? The chemical equation will be 2Mg + O2 -> 2MgO, right? From the equation itself, you can see that the amount of matter is unchanged before and after the reaction, right? That is the Law of Conservation of Matter, as you cannot create or destroy matter. But from the P.O.E.T point of view, it is also an Equivalent Trade, as the value/amount before and after the reaction stays the same. You give 2 Mols of Magnesium to combine with 1 Mol of Oxygen and you get 2 Mols of Magnesium Oxide at the end of the reaction. But some of you might say, "Wait a minute, how can that be equivalent? 2 + 1 = 2? It should be 3 !!" Yeah, you’re right, but you’re wrong as well…coz if you look back at the equation, 2Mg + O2 -> 2MgO, count back the number of Mg and O at both side of the equation. First, you have 2 atoms of Magnesium and 2 atoms of Oxygen (atoms of oxygen, not molecules OK?) right? At the end of the reaction? you get 2 MgO, but theres still 2 atoms of Magnesium and 2 atoms of Oxygen…rite? Therefore…it is…equivalent…

    OK…thats how both the laws are related to the Principle Of Equivalent Trade. Do you get it now? The P.O.E.T doesn’t only stop here…theres many things where Equivalent Trade applies. Again, i’ll have to state that im not trying to disprove whatever scientist’s Law and Theory, I’m not saying that the Law of Conservations are wrong and im not the person who came up with this Principle Of Equivalent Trade thing. I get to know it from the anime series ‘Fullmetal Alchemist‘ and find it to be kinda true, thats all. All my explainations are based on my understandings of it, and more importantly, this is not a real Physics Law, its just an idea. Therefore, please do not use it during your exams, e.g : According to the Principle of Equivalent Trade, blablabla… NO NO NO !

    First of all…wat comes into your mind after reading the title above, i.e The Principle Of Equivalent Trade? Do you believe in it? Well…for those of you who have seen the anime series ‘Fullmetal Alchemist‘, im sure you guys have no problem understanding that principle rite? But wat about those who didn’t watch it? Now…thats the reason of this post…to briefly explain The Principle Of Equivalent Trade (The P.O.E.T, hmm…the poet?)

    Well…first off, wat do you mean by equivalent? Equivalent means…equal…meaning that it is the same…Some of you might say, "Duhh~ Even a standard one kid knows wat is equal…" Ok…then we go to the next thing…wat do you mean by ‘Equivalent Trade‘? Well…here’s a quote from the anime ‘Fullmetal Alchemist‘ about the P.O.E.T which states that :

People cannot gain anything without sacrificing something. You must present something of equal value in order to gain something. That is the Principle of Equivalent Trade in alchemy…

    There…thats wat the Principle of Equivalent Trade is all about…you cannot get something out of nothing…you have to give something…in order to get something of the equivalent value…In other words, wat u give out…is wat u receive…If you were to put it into a mathematics statement, it would be like this " What You Give/Sacrifise = What You Get/Receive ".

    Sounds easy to you? Yes? No? Well…actually…the P.O.E.T is not much difference from the Law of Conservation of Matter or the Law of Conservation of Energy and other Law of conservations…Well, in fact, both of the laws mentioned above…could be explained by using the P.O.E.T…hehee…sounds interesting? Well…im not trying to disprove Einstien, or Newton, or John Dalton or any other scientist…Nor am i trying to say that im greater than them as i can explain both laws using only the same thing, i.e the P.O.E.T…

    Hmm…i guess this post is getting a little too long? So i guess i’ll just stop here for this time…(actually ‘cos its getting a little too late to continue typing, its 2AM in the morning dude!) Take you time…and try to think about wat i’ve posted…I’ll explain further in my next post…hope all of you can understand wat im trying to say…

    Hie guys…Im actually just testing out this new blog service from friendster…well its not really that ‘new’ actually…i actually knew it for quite some time already…i could actually blog so much earlier…but as usual…im actually too lazy to do it…Hmm…do you actually realise how many times i had actually used the word ‘actually‘ ? hehehe XD

    Well…like i said…just testing out this new blog-ing thingy…so…those of you out there who really is looking forward towards my blog…dun get too enthusiastic about it, ok? ‘Cos i may not update my blog…well, maybe i will…but not that frequent…maybe..once or twice a month? It may be less…or may be more ? Who knows…well…there’s only one way to find out…that is by checking my blog site…but like i said…may not update that frequetly…maybe once or twice a month? Hmm…seems like im repeating myself ? Okla…Then i better stop now…Guess thats all for my first blog post…Hope to post more in the near future…or is it far… ? =)