## Tuesday, 29 November 2011

### Menguruskan hidup

Bismillahirahmanirahim... Setelah kita semua tetapkan matlamat dan cita-cita, datang lagi satu cabaran pada kita. Cabaran untuk menguruskan masa dan perkara-perkara yang akan kita buat untuk mencapai matlamat tersebut. Cabaran ini tidak boleh dipandang rendah dan diambil mudah. Dalam cabaran ini kita akan berdepan dengan masalah yang mungkin datang dari pembelajaran kita atau kehidupan peribadi. Ini akan menyulitkan kita. Kalau dipandang secara kasar hidup ini, belajar la yang paling penting. Bermula dari belajar, kita mahukan sijil, keputusan, dan ilmu yang baik. Dengan keputusan tersebut, kita memohon pekerjaan yang baik. Kerja yang baik akan membawa rezeki yang baik. Jadi dapat lah kita tangggung keluarga kita. Dengan pendapatan yang baik, kita akan mempunyai keyakinan untuk berumah tangga. Tanggungjawab kita juga untuk menanggung makan minum dan tempat tinggal untuk isteri dan anak-anak kelak. Kalau dipandang secara halus, perjalanan diatas bukan semudah yang disangka. Akan datang ujian yang bermacam-macam bentuk untuk menguji kita. Ujian ini akan berterusan sehingga la kita tiada nafas lagi. Biasanya ujian tersebut datang dari kehidupan peribadi kita. Kadang-kadang kita akan terasa sangat lemah, keliru dan tak boleh fikir apa-apa pun. Dalam keadaan macam ini la nilai persahabatan diperlukan sangat-sangat. Ada masa kita boleh berdiri dengan sendiri, tapi ada juga masa kita memerlukan bantuan orang lain untuk bangun kembali. Rumitnya hidup ini..Tapi kalau dipandang balik, difikir secara tenang cabaran ini lah yang banyak membantu kita untuk hidup. Kita dapat memilih jalan mana yang terbaik untuk diikuti berdasarkan pengalaman yang kita dapat.

## Sunday, 27 November 2011

### Nikmat

Ketahuilah, dalam hidup ini..Kadang-kadang kita mendapat banyak apa yang tidak kita inginkan daripada apa yang kita inginkan. Apabila kita dapat apa yang kita inginkan, baru kita sedar kadang-kadang apa yang kita inginkan itu tidak dapat buatkan hidup kita lebih baik. Oleh itu, hargailah segala apa yang ada di hadapan kita..Bersyukurlah segala nikmat yang telah dianugerahkan pada kita.

### Siapa aku

Siapa aku sebenarnya?...apa kelebihan aku?.. persoalan inilah yang bermain di fikiran ku, tapi masih tiada jawapannya. Aku dah bertahun-tahun mencari jawapan, tetapi sampai sekarang tidak ku temui. Aku cuba bertanya kepada orang lain, apa kelebihan aku..Tetapi dia tak dapat berikan jawapannya. Susahnya mencari kebenaran. Setiap hari aku mencari dan terus mencari..Apabila aku kenal seseorang, aku boleh nampak kelebihan dirinya berbanding orang lain walaupun satu. Bila aku renung diri aku pula, aku tak jumpa pun kelebihan itu walaupun satu. Setiap  perkara yang aku buat mesti ada orang lain yang dapat buat lebih baik dari aku..Jadi di mana lebihnya aku..Kadang-kadang, aku sendiri terasa penat mencari jawapan ini. Tapi keinginan untuk tahu itu sangat kuat..Ini yang menjadi semangat buat aku mencari makna hidup ini dan siapa aku sebenarnya.

## Saturday, 26 November 2011

### takut

Hari yang dijanjikan semakin dekat. Aku semakin takut. Cukupkah kelengkapan aku, persediaan aku untuk melalui hari tersebut. Dengan beberapa persediaan yang mengecewakan sebelum ini. Aku rasa diri ini masih banyak kekurangannya. Hei..Lemahnya aku.

## Wednesday, 23 November 2011

### sahabat Sejati...

Assalamualaikum...Untuk pagi ini, Aku ingin sampaikan sedikit pedoman daripada Iman Al-syafie yang berkait dengan sahabat sejati. Sebelum itu aku ada sesuatu nak kata..Mencari kawan adalah sangat mudah, tapi mencari sahabat sejati tersangatlah susah..Aku jenis yang mudah berkawan dengan sesiapa pun dan aku akui aku juga mempunyai sahabat sejati. Dimasa aku susah, aku boleh meminta pertolongan mereka, dan dimasa aku senang, aku boleh bergelak ketawa dengan mereka..Aku nampak macam mana sahabat aku betul-betul ikhlas dalam persahabatan kami..Tapi aku takut..Takut..Adakan aku dapat menjadi sahabat sejati kepada mereka?...

IMAM
Al-Syafie banyak memberi pedoman dalam memilih kawan. Beliau juga
mengakui sukar mencari sahabat sejati yang mahu berkongsi suka duka
bersama...Ketika
menilai sahabat sejati pada waktu susah, katanya: Kawan yang tidak
dapat dimanfaatkan ketika susah lebih mendekati musuh daripada sebagai
kawan....

Tidak
ketika susah....

Sepanjang hidup aku berjuang bersungguh-sungguh mencari
sahabat sejati hingga pencarianku melenakanku....

Kukunjungi seribu negara, namun tidak satu negara pun yang penduduknya
berhati manusia...
Imam Al-Syafie turut meminta kita berhati-hati
memilih sahabat kerana sahabat yang baik akan membawa ke arah kebaikan
dan begitu sebaliknya....
Katanya:
Jika seseorang tidak dapat menjaga nama baiknya kecuali dalam keadaan
terpaksa, tinggalkanlah dia dan jangan bersikap belas kasihan
dengannya bererti istirehat....Dalam
hati masih ada kesabaran buat kekasih, meskipun memerlukan daya usaha
yang keras...Tidak semua orang yang engkau cintai, mencintaimu dan
sikap ramahmu kadangkala dibalas dengan sikap tidak sopan...Jika cinta
dibuat-buat.Tidak
baik bersahabat dengan pengkhianat kerana dia akan mencampakkan cinta
setelah dicintai....Dia akan memungkiri jalinan cinta yang terbentuk
dan akan menampakkan hal yang dulunya menjadi rahsia...Seseorang itu
Al-Syafie dalam hal ini berkata: Ketika aku menjadi pemaaf dan tidak
mempunyai rasa dengki, hatiku lega, jiwaku bebas daripada bara
menghormatinya... Semua itu kulakukan agar aku dapat menjaga diriku
daripada kejahatan....Aku nampakkan keramahan, kesopanan dan rasa
persahabatanku kepada orang yang kubenci, seperti aku nampakkan hal itu

## Sunday, 20 November 2011

### New technology (Maglev)

Maglev (derived from magnetic levitation), is a system of transportation that uses magnetic levitation to suspend, guide and propel vehicles from magnets rather than using mechanical methods, such as friction-reliant wheels, axles and bearings. Maglev transport is a means of flying a vehicle or object along a guideway by using magnets to create both lift and thrust, only a few inches above the guideway surface. High-speed maglev vehicles are lifted off their guideway and thus move more smoothly, quietly and require less maintenance than wheeled mass transit systems – regardless of speed. This non-reliance on friction also means that acceleration and deceleration can far surpass that of existing forms of transport. The power needed for levitation is not a particularly large percentage of the overall energy consumption; most of the power used is needed to overcome air resistance (drag), as with any other high-speed form of transport.

The highest recorded speed of a Maglev train is 581 km/h (361 mph), achieved in Japan by the CJR's MLX01 superconducting maglev in 2003, 6 km/h (3.7 mph) faster than the conventional TGV wheel-rail speed record.

Watch this video

After look at this technology, do you think will it be possible to create flying car using this concept????

### Feel alone

You are not alone. Muslims are not alone. We are not suffering in silence. There are millions of good people who are Muslim and non Muslim with beautiful hearts and minds. These are people who have supported us, individually and collectively, by checking up on us and making sure we are safe. These are individuals and organizations who have spoken up in defense of Muslims as we endured harassment and discrimination.We must think of them, talk to them, connect with them, and pray for them. Through our connections, we will break the chain of isolation that leads to depression and anxiety.

### Stress

The things that cross our minds and make us feel distressed are things in the past that have caused grief, things in the future that we are worried about, and things in the present which concern us. People react differently to stress and worries, depending on how many things are concerning them, whether the worry is continuous or not, and on whether they have faith in their hearts or are rebellious and sinful. We may describe people’s hearts as being of two types: either the heart is the throne of Allah, filled with light, life, happiness, joy and all the treasures of goodness; or it is the throne of syaitan, wherein is distress, darkness, death, grief, worry and anxiety.People’s worries and concerns will also differ, according to the differences in their motivations, circumstances and individual responsibilities.

Examples of different kinds of stress

Kinds of anxieties that may result from committing sin include: the distress suffered after shedding blood wrongfully; or the anxiety of a woman who is pregnant as a result of fornication or adultery

Some kinds of anxiety result from fears about what may lie ahead in the future, for example a father may be worried about what will happen to his children after he dies, especially if they are weak and he has nothing to leave behind for them.

Kinds of distress that result from wrongful treatment at the hands of others include that suffered because of mistreatment by one's own relatives, as the poet said: “The wrong suffered at the hands of those who are closely-related is more painful to bear than a blow from a powerful sword.”

Distress suffered because of the calamities that happen in this world include: chronic or serious diseases, disobedience of children towards their parents, hostility on the part of one’s wife or mistreatment on the part of one’s husband.

## Saturday, 19 November 2011

I show my face for the first time in this blog.

## Series circuits

Series circuits are sometimes called current-coupled or daisy chain-coupled. The current in a series circuit goes through every component in the circuit. Therefore, all of the components in a series connection carry the same current. There is only one path in a series circuit in which the current can flow.
A series circuit's main disadvantage or advantage, depending on its intended role in a product's overall design, is that because there is only one path in which its current can flow, opening or breaking a series circuit at any point causes the entire circuit to "open" or stop operating. For example, even one of the light bulbs in an older-style string of Christmas tree lights burns out or is removed, the entire string becomes inoperable until the bulb is replaced.

### Resistors

The total resistance of resistors in series is equal to the sum of their individual resistances:

$R_\mathrm{total} = R_1 + R_2 + \cdots + R_n$

Electrical conductance presents a reciprocal quantity to resistance. Total conductance of a series circuits of pure resistors, therefore, can be calculated from the following expression:
$\frac{1}{G_\mathrm{total}} = \frac{1}{G_1} + \frac{1}{G_2} + \cdots + \frac{1}{G_n}$.
For a special case of two resistors in series, the total conductance is equal to:
$G_{total} = \frac{G_1 G_2}{G_1+G_2}.$

### Inductors

Inductors follow the same law, in that the total inductance of non-coupled inductors in series is equal to the sum of their individual inductances:

$L_\mathrm{total} = L_1 + L_2 + \cdots + L_n$
However, in some situations it is difficult to prevent adjacent inductors from influencing each other, as the magnetic field of one device couples with the windings of its neighbours. This influence is defined by the mutual inductance M. For example, if two inductors are in series, there are two possible equivalent inductances depending on how the magnetic fields of both inductors influence each other.
When there are more than two inductors, the mutual inductance between each of them and the way the coils influence each other complicates the calculation. For a larger number of coils the total combined inductance is given by the sum of all mutual inductances between the various coils including the mutual inductance of each given coil with itself, which we term self-inductance or simply inductance. For three coils, there are six mutual inductances M12, M13, M23 and M21, M31 and M32. There are also the three self-inductances of the three coils: M11, M22 and M33.
Therefore
Ltotal = (M11 + M22 + M33) + (M12 + M13 + M23) + (M21 + M31 + M32)
By reciprocity Mij = Mji so that the last two groups can be combined. The first three terms represent the sum of the self-inductances of the various coils. The formula is easily extended to any number of series coils with mutual coupling. The method can be used to find the self-inductance of large coils of wire of any cross-sectional shape by computing the sum of the mutual inductance of each turn of wire in the coil with every other turn since in such a coil all turns are in series.

### Capacitors

Capacitors follow the same law using the reciprocals. The total capacitance of capacitors in series is equal to the reciprocal of the sum of the reciprocals of their individual capacitances:

$\frac{1}{C_\mathrm{total}} = \frac{1}{C_1} + \frac{1}{C_2} + \cdots + \frac{1}{C_n}$.

### Switches

Two or more switches in series form a logical AND; the circuit only carries current if all switches are 'on'. See AND gate.

### Cells and batteries

A battery is a collection of electrochemical cells. If the cells are connected in series, the voltage of the battery will be the sum of the cell voltages. For example, a 12 volt car battery contains six 2-volt cells connected in series.

## Parallel circuits

If two or more components are connected in parallel they have the same potential difference (voltage) across their ends. The potential differences across the components are the same in magnitude, and they also have identical polarities. The same voltage is applicable to all circuit components connected in parallel. The total current is the sum of the currents through the individual components, in accordance with Kirchhoff’s current law.

### Resistors

The current in each individual resistor is found by Ohm's law. Factoring out the voltage gives
$I_\mathrm{total} = V\left(\frac{1}{R_1} + \frac{1}{R_2} + \cdots + \frac{1}{R_n}\right)$.
To find the total resistance of all components, add the reciprocals of the resistances Ri of each component and take the reciprocal of the sum. Total resistance will always be less than the value of the smallest resistance:

$\frac{1}{R_\mathrm{total}} = \frac{1}{R_1} + \frac{1}{R_2} + \cdots + \frac{1}{R_n}$.
For only two resistors, the unreciprocated expression is reasonably simple:
$R_\mathrm{total} = \frac{R_1R_2}{R_1+R_2} .$
This sometimes goes by the mnemonic "product over sum".
For N equal resistors in parallel, the reciprocal sum expression simplifies to:
$\frac{1}{R_\mathrm{total}} = \frac{1}{R} \times N$.
and therefore to:
${R_\mathrm{total}} = \frac{R}{N}$.
To find the current in a component with resistance Ri, use Ohm's law again:
$I_i = \frac{V}{R_i}\,$.
The components divide the current according to their reciprocal resistances, so, in the case of two resistors,
$\frac{I_1}{I_2} = \frac{R_2}{R_1}$.
An old term for devices connected in parallel is multiple, such as a multiple connection for arc lamps.
Since electrical conductance G is reciprocal to resistance, the expression for total conductance of a parallel circuit of resistors reads:
${G_\mathrm{total}} = {G_1} + {G_2} + \cdots + {G_n}$.
The relations for total conductance and resistance stand in a complementary relationship: the expression for a series connection of resistances is the same as for parallel connection of conductances, and vice versa.

### Inductors

Inductors follow the same law, in that the total inductance of non-coupled inductors in parallel is equal to the reciprocal of the sum of the reciprocals of their individual inductances:

$\frac{1}{L_\mathrm{total}} = \frac{1}{L_1} + \frac{1}{L_2} + \cdots + \frac{1}{L_n}$.
If the inductors are situated in each other's magnetic fields, this approach is invalid due to mutual inductance. If the mutual inductance between two coils in parallel is M, the equivalent inductor is:
$\frac{1}{L_\mathrm{total}} = \frac{L_1+L_2-2M}{L_1L_2-M^2 }$
If L1 = L2
$L_{total} = \frac{L+M}{2}$
The sign of M depends on how the magnetic fields influence each other. For two equal tightly coupled coils the total inductance is close to that of each single coil. If the polarity of one coil is reversed so that M is negative, then the parallel inductance is nearly zero or the combination is almost non-inductive. It is assumed in the "tightly coupled" case M is very nearly equal to L. However, if the inductances are not equal and the coils are tightly coupled there can be near short circuit conditions and high circulating currents for both positive and negative values of M, which can cause problems.
More than three inductors becomes more complex and the mutual inductance of each inductor on each other inductor and their influence on each other must be considered. For three coils, there are three mutual inductances M12, M13 and M23. This is best handled by matrix methods and summing the terms of the inverse of the L matrix (3 by 3 in this case).
The pertinent equations are of the form: $v_{i}=\sum_{j} L_{i,j}\frac{di_{j}}{dt}$

### Capacitors

Capacitors follow the same law using the reciprocals. The total capacitance of capacitors in parallel is equal to the sum of their individual capacitances:

$C_\mathrm{total} = C_1 + C_2 + \cdots + C_n$.
The working voltage of a parallel combination of capacitors is always limited by the smallest working voltage of an individual capacitor.

### Switches

Two or more switches in parallel form a logical OR; the circuit carries current if at least one switch is 'on'. See OR gate.

### Cells and batteries

If the cells of a battery are connected in parallel, the battery voltage will be the same as the cell voltage but the current supplied by each cell will be a fraction of the total current. For example, if a battery contains four cells connected in parallel and delivers a current of 1 ampere, the current supplied by each cell will be 0.25 ampere. Parallel-connected batteries were widely used to power the valve filaments in portable radios but they are now rare.

## Combining conductances

From Kirchhoff's circuit laws we can deduce the rules for combining conductances. For two conductances G1 and G2 in parallel the voltage across them is the same and from Kirchoff's Current Law the total current is
$I_{Eq} = I_1 + I_2.\ \,$
Substituting Ohm's law for conductances gives
$G_{Eq} V = G_1 V + G_2 V\ \,$
and the equivalent conductance will be,
$G_{Eq} = G_1 + G_2.\ \,$
For two conductances G1 and G2 in series the current through them will be the same and Kirchhoff's Voltage Law tells us that the voltage across them is the sum of the voltages across each conductance, that is,
$V_{Eq} = V_1 + V_2.\ \,$
Substituting Ohm's law for conductance then gives,
$\frac {I}{G_{Eq}} = \frac {I}{G_1} + \frac {I}{G_2}$
which in turn gives the formula for the equivalent conductance,
$\frac {1}{G_{Eq}} = \frac {1}{G_1} + \frac {1}{G_2}.$
This equation can be rearranged slightly, though this is a special case that will only rearrange like this for two components.
$G_{Eq} = \frac{G_1 G_2}{G_1+G_2}.$

### Ohm's law

Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. Introducing the constant of proportionality, the resistance. one arrives at the usual mathematical equation that describes this relationship:
$I = \frac{V}{R}$

where I is the current through the conductor in units of amperes, V is the potential difference measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms.

V=IR

Is the formula which is Ohm's law. According to this formula, V=IR, I=V/R, and R=V/I.
V means voltage, I means current, and R means resistance. So, Voltage equals Current times Resistance. To remember this, here is Ohm's Pyramid

### English

Starting today i will try my best to post articles or story in english. My english is still in primary school. So, any comment or correction from the reader is needed. This is a way for me to improve my english. You can laugh if i make a silly mistake. i will take it as my weakness. hope for the best.

## Monday, 14 November 2011

### Ingatan

Hari ni aku lakukan kesilapan yang teramat besar..X dapat dimaafkan..Aku sendiri xdapat maafkan diri ini..Aku terima sebagai ingatan untuk aku...