Is black, a color?

mbhcsf

well good morning,

hehehe..well dear,
heheheh as far as i am concerned, it is true ( and I agreed with you on this ) that the absolute  value of certain physical quantities like temperature cannot be readily obtained, we  merely obtained  the relative value just by relying on the expansion of mercury in the thermometer. In a way Encik Werner Heisenberg was telling us the truth and proposed the "uncertainty principle" which already addressed the matter above.  He said that we could never know the TRUE values of things, but we could get the relative value of things, at least .

So  you are right in that sense.

But in discussing this your green - is - the- same - as - mine ni well, relative comparsion would be suffice ..kan?
let us say we have several tones / shades of green and we say to the cute green + blue - eyed boy ( i mean the iris is blue;  not becoz he was being hit on the eyes) if he were to come back again and we instruct him to show us how green is the grass, like say " Hello Tom/ Nicole/ Siti/ Hafiz/Mutu / Devi/Ah Kow/ Mei Hua, could you please match the colour you see on the grass with the colour that we have on the pellets here?".... bagilah  gula gula lepas tu sebab dia participate in research .....so in a way we could gauge whether he is perceiving the green grass as what we would expected for the rest 95 % of the population hopefully.

okay .....so the fact that we , never know the true value is okay i would say, as it would not hampering us from knowing whether the child is perceiving  the "green" normally or the other way around.

the second task of defining those morphemes / words - hmm..i would be thinking of locating those words in Mr Webster of other online dictionaries ......hahhaa U think


but then, alas I try..
mass - how much elements contained by  an object ; but depends on whether it is an object of say an atom -kan ? if it is an object then it  ok direct measurement could be obtained..if it is an Atom like say..rubidium etc etc that you'd be relying on relative molecular  mass of C-12.

( not C-4 though why?)--?
becoz it 'll blow another altantuya away i guess

time - this is RELATIVE to the vibrating capacity / rate of caessium kan? yg atomic clock tu?

i lupa lah


I ( saya) - me , a name ...i called myself well those darling... are  basically pronoun lah kata ganti diri ( pertama in the case of I , Saya)

distance ( length) ni bukan relative comparison to the length made by the krypton punya - laser type rays ker ..ni i dah lupa chapter 1 physics form 4..sesapa boleh verify

-----------------

how about this one

langit?
ni i tatau ....could u ?

well ...why did you give me all those words in the first place?

hmm?


how are you today?

anyway , you know what i have noticed?

we both agree that that strange little boy is cute indeed,
we  concur that relative comparison is the key but eer you said that is not really  valid kot , sebab dia bukan absolute value but then again ...Encik Heisenberg akan cakap , nak buek cam ner ...?

but again
did you notice tak ? sebab i baru notice yg  kalau macam jisim , a mass of an object - we could easily obtained the value by direct measurement using the scale weighing scale etc etc or three balance beam tu  tapi in some cases we just need to depend on relative comparison

but strange enough ker that the speed of light , could be directly measured....cantik , kan?

[ Last edited by  mbhcsf at 1-2-2009 07:58 AM ]

blastoff

Originally posted by mbhcsf at 31-1-2009 11:13 PM

cakap dgn tembok ...no....it 's  matter of exploring different perspectives, meh lah join

well, try guna explanation yang scientific dan bersimpang siur dengan jiran sebelah rumah ke , atau maid , atau dengan makcik dan tokcik kat kampung ke , so tak yah tunggu budak kecik kan , yang tua-tua pun tak semestinya paham , tapi tak bermakna explanation kita tu tak betul atau kita cuba nak bermegah dengan knowledge kita ke apa , cuma kita aje la yang tak akan mendapat respon yang kita inginkan sebab mesej tak difahami   so only selective people aje kan understand , tapi kebanyakan manusia hanya akan terkebil-kebil aje itu makna " macam cakap dengan tembok" tu

tapi kat bod ni tak pe , banyak otak se wavelength belaka-belaka   , kat bod CI parah sikit la kot sebab wavelength kat situ caca marba sikit jadi silap haribulan boleh kena bedil tak sudah   

[ Last edited by  blastoff at 1-2-2009 08:16 AM ]

blastoff

Originally posted by saden at 1-2-2009 12:31 AM

1. mass
2. distance or space (pick either)
3. time
4. I (saya)

1. mass - tahap kecekapan yang badan boleh capai bila kena paksa  
2. distance - berapa jauh limitnya tahap paksaan tu boleh dikenakan pada badan
space - bagaimana pengaruh persekitaran limit atau expand kecekapan badan yang di paksa   
3. time - berapa lama kekuatan badan dapat bertahan bila di paksa
4. I - apakah saya boleh mencapai semaksima yang mampu di capai oleh orang lain sekiranya saya memaksa badan saya , adakah saya dan orang lain semua benar-benar sama kecekapannya dari segi mass , distance / space and time , macam mana nak ukur secara tepat untuk tahu dengan pasti ?

Adakah keinginan yang menjadi faktor utama yang membolehkan manusia mencapai kecekapan badan semaksima mungkin  , di antara paksaan dengan keinginan maka yang mana yang lebih memberi impak lebih kepada kecekapan badan manusia ? Adakah manusia yang buat sesuatu kerana dia ingin , atau kerana dia dipaksa , akan sama aje ke dapat mencapai kecekapan badannya semaksima mungkin ?

Scientists ( mostly dari barat ) selalunya suka melimitkan pencapaian mereka pada apa yang mereka sekarang boleh capai , sebab apa yang mereka tak boleh maka mereka menyangka mesti in reality memang tak boleh langsung pun ... tanpa mereka menyedari mungkin mereka aje yang tak mencapai lagi ke tahap termaksima tu kan , dalam erti kata lain apa yang mereka tak tahu maka tak wujud la jawabnya pada mereka sebab tak dak bukti secara scientific, walaupun bukti secara logik jelas dah depan mata  .

[ Last edited by  blastoff at 1-2-2009 10:09 AM ]

mbhcsf

Originally posted by blastoff at 1-2-2009 08:14 AM


well, try guna explanation yang scientific dan bersimpang siur dengan jiran sebelah rumah ke , atau maid , atau dengan makcik dan tokcik kat kampung ke , so tak yah tunggu budak kecik ka ...

i am open about this ...well kalau depa tatau boleh tanya , tapi ya lah nak break the barrier tu supaya mesej sampai  iam learning this actually to impart something that other could easily comprehend well i need and i want to actually for  the sake of my profession.

anyway tu lah pasal Kubbler - Ross tu ker ? hehehe i let if off ....it 's just u know may be too complicated or rather  i cannot perceived what is so difficult about that as some people cannot get it and sadly making fun of it so...tak pa unless a person had underwent a traumatic experience i guess they would understand anyway.....or perhaps i try to improve myself in communicating my understanding about their problem, sometimes kita faham situasi org tu tapi kita tidak  berkomunikasi  secara berkesan untuk menyatakan kita mmg faham dia punya situasi, tapi kan kat Current Issue - i think, personally kita boleh cakap apa sahaja sebab kebanyakan pattern yg i tengok ialah : A akan buka thread , B datang either menyokong or buat lawak ( which is fine)  then B and C pula  either labelling people with  those words yg kiat  kalau boleh tak nak anak nak kita cakap pun tapi masya ALLAH sesama ISlam melabel dgn perkataan kotor boleh pulak ...ish ish i cannot see the spirit OF isLAM IN THERE.... then begitulah setersunya , seriosu discussion kalau boleh tak mau ..ni org kita ...so anyway  i guess kalau org nak bincang seserius yg boleh pun ( alaaaa bukan serious pun) depa label itu dan ini so? where's that SPIRIT of ISLAM ....so u see tak pala nak label label lah sebab kita buat bukan sebab org atas niat lah  kan  sebab kalau sesia jer tu lagha kalau ilmu yg bermanfaat pahala..anywabut on personal note i like the way you handle yopu handled me at elast you are not making fun but being very appreaciative , bless you again.

well, how to break the barrier ? perception mentality kena betul positive thinking is the key ...

anyway .....cakap dgn tembok well kalau tembok pun boleh response dgn yg menyenangkan sekali why not , eh?

HUMPTY DUMPTY sat on the wall ..wakakakkakkak


anyway...tasik titiwangsa mmg penuh dgn org tadi..it was fun

_________________________________________________________________________________________________

moving on

cam ner dgn your definition of mass, time etc etc
it is rather interesting ,how did  you see that ?

saden

alamak...sempat ke nak jawab ni? nak gi kl pulak ni...ada jemputan

sikit2lah...mana yg sempat dulu

[ Last edited by  saden at 1-2-2009 12:24 PM ]

saden

Originally posted by blastoff at 1-2-2009 09:14 AM
1. mass - tahap kecekapan yang badan boleh capai bila kena paksa  
2. distance - berapa jauh limitnya tahap paksaan tu boleh dikenakan pada badan
space - bagaimana pengaruh persekitaran limit atau expand kecekapan badan yang di paksa   
3. time - berapa lama kekuatan badan dapat bertahan bila di paksa
4. I - apakah saya boleh mencapai semaksima yang mampu di capai olehorang lain sekiranya saya memaksa badan saya , adakah saya dan oranglain semua benar-benar sama kecekapannya dari segi mass , distance /space and time , macam mana nak ukur secara tepat untuk tahu denganpasti ?

boleh jadi guard kat guantanamo bay ni jadi tukang torture

blastoff

Originally posted by mbhcsf at 1-2-2009 11:51 AM
i am open about this ...well kalau depa tatau boleh tanya

this is what I like about you

Originally posted by mbhcsf at 1-2-2009 11:51 AM
well, how to break the barrier ? perception mentality kena betul positive thinking is the key ...

anyway .....cakap dgn tembok well kalau tembok pun boleh response dgn yg menyenangkan sekali why not , eh?

HUMPTY DUMPTY sat on the wall ..wakakakkakkak


anyway...tasik titiwangsa mmg penuh dgn org tadi..it was fun  

kekadang cakap dengan tembok dalam bilik sorang-sorang untuk practice bagi tak gagap ka ok pe    , well orang yang guna blue tooth ketika jawap panggilan kalau menghadap tembok akan nampak macam dia cakap dengan tembok lah kan kekdahnya , kalau dia mengadap kita kang kita pulak yang terperasan yang dia cakap dengan kita pulak dah tu la kan , teknologi terkini macam blue tooth ni bagi orang nampak macam orang gila cakap sengsorang ajelah   

Well , how to break the barrier ? I guess kena berani berdepan dengan tohmahan orang , dan cuba faham apa yang tersirat sebenarnya melalui tohmahan mereka tu , maksud I psikologi mereka lah kan . Apabila kita faham maka kita mudah untuk memberi reaksi yang sesuai mengikut psikologi orang yang kita berdepan tu .  

Tak dinafikan ada forummer kat CI yang kita perlu just ignore aje kalau tidak kang kita pulak yang dapat headache lebey sebab layan dia , terutama forummers yang gemar mengutuk tak hengat la kan bila start kutuk - mengutuk tu maknanya memang emosi menguasai diri la maka apa yang kita kata pun dia dah pekak dah waktu tu , jadi buat menghabih boreh aje la kita dok pi explain panjang lebar pulak ... kita semua pun dalam proses belajar mengenali diri dan mengenali orang di sekeliling kita , so minda kita kena terbuka untuk terima kelemahan diri kita dan orang lain

[ Last edited by  blastoff at 1-2-2009 12:42 PM ]

saden

Originally posted by mbhcsf at 1-2-2009 07:46 AM
mass - how much elements contained by  an object ; but depends onwhether it is an object of say an atom -kan ? if it is an object thenit  ok direct measurement could be obtained..if it is an Atom likesay..rubidium etc etc that you'd be relying on relative molecular  massof C-12.

( not C-4 though why?)--?
becoz it 'll blow another altantuya away i guess

time - this is RELATIVE to the vibrating capacity / rate of caessium kan? yg atomic clock tu?

i lupa lah


I ( saya) - me , a name ...i called myself well those darling...are  basically pronoun lah kata ganti diri ( pertama in the case of I ,Saya)

distance ( length) ni bukan relative comparison to the length made bythe krypton punya - laser type rays ker ..ni i dah lupa chapter 1physics form 4..sesapa boleh verify

if u notice, definition2 yg u quote tu sume semata2 untuk membolehkan measurement of said things, but it does not exactly describe what it is.

yang 'I, saya, me' tu pun, kalau u cuba explain kat orang, last2 u just sebut I! ME! SAYA! dgn muka penuh ekspresi sambil tunjuk kat diri sendiri pakai dua2 telunjuk kiri kanan hehehehe..dgn harapan dia paham apa yg kita cuba maksudkan.

i picked those things pasal nak bagi contoh perkara2 yg tak boleh nak didescribekan konsepnya (like color ). contoh2 tu nama dia 'fundamental quantities'...fundamental pasal dah takleh nak describe lagi dah dgn cara lebih mudah. whatever word yg kita guna utk describe akan jadi circular logic atau circular definition.... macam u cakap mass tu.. mass ialah banyak mana benda yg ada dlm objek. objek pulak? objek ialah benda yg ada mass! and if u notice i used 'benda' for both objek and mass..so benda is objek and mass? see what i mean as circular definition? anyway.. but we know what it is anyway, cuma tak terungkap dgn kata2 aje.

blastoff

Originally posted by mbhcsf at 1-2-2009 11:51 AM

moving on

cam ner dgn your definition of mass, time etc etc
it is rather interesting ,how did  you see that ?

I pernah tengok documentary mengenai seorang manusia yang ketika dia lengkap tubuh badan dia macam merasakan diri dia tak begitu berguna sangat , ye lah kan menjalani hidup macam manusia lain pergi kerja balik kerja , tak de papa yang special atau extraordinary yang dia rasa dia boleh achieve , tapi bila dia kena accident yang menyebabkan kedua tangan dia terpaksa di kerat langsung, jadi dia mula belajar menggunakan kakinya untuk makan , minum , mandi dan menyiapkan segala kerja lah yang perlu dia siapkan termasuk menulis .... boleh la pulak kaki dia melakukannya malah secekap tangan !

Itulah kan kecekapan badan manusia ni sebenarnya masih manusia tak utilize semaksima mungkin lah kan   kalau dipaksa atau terpaksa baru manusia sedar bahwa dia boleh melakukan banyak benda yang selalunya dia tak terdaya nak buat , jadi adakah keinginan yang menjadi puncanya yang melimitkan kecekapan badan manusia sebenarnya  ?

I juga pernah tengok documentary bagaimana tok-tok sami yang diletakkan dalam bilik sejuk beku , lalu mereka meditate dengan membayangkan api dan haba dalam minda mereka , lalu badan mereka jadi panas sehingga menitik peluh satu badan walau dalam bilik sedingin tu sekali pun. Jadi ini menimbulkan persoalan pada I apa sebenarnya kecekapan paling maksima yang badan manusia boleh capai ......   

apa lagi wonders yang badan manusia mampu capai yang mereka sendiri tak sedar lagi kan   ...... apakah semua manusia punya kemampuan yang sama gitu termasuk kita jugak ? Jadi kenapa kita tak mampu buat apa yang di buat oleh mereka-mereka tu kan ... apa yang menghalang kita sebenarnya ? Keinginan kita atau dalam erti kata lain kita tak bersungguh inginkan kebolehan gitu ....  If there's a will there's a way ?

[ Last edited by  blastoff at 1-2-2009 01:20 PM ]

blastoff

Originally posted by saden at 1-2-2009 12:26 PM


boleh jadi guard kat guantanamo bay ni jadi tukang torture

patut di buat kajian macam mana keadaan psikologi para banduan kat situ untuk melihat teknik survival yang mereka guna kan untuk dapat bertahan dalam environment yang mencabar rohani dan jasmani gitu   apa yang membantu mereka untuk survive lah kan . Bukan bermakna kita gi torture depa , cuma kita belajar apa yang mereka dah lalui aje

mbhcsf

well..hari wilayah dah habis dah...yg ada chess game kot , etc etc  semapt kot if u wanna go to that place ...

very close to my working area....

mbhcsf

Originally posted by saden at 1-2-2009 12:22 PM
alamak...sempat ke nak jawab ni? nak gi kl pulak ni...ada jemputan

sikit2lah...mana yg sempat dulu

eh? where  you are from , then? ( if i may ask?)

mbhcsf

let us  see..
a) if u notice, definition2 yg u quote tu sume semata2 untuk membolehkan measurement of said things, but it does not exactly describe what it is.

b) yang 'I, saya, me' tu pun, kalau u cuba explain kat orang, last2 u just sebut I! ME! SAYA! dgn muka penuh ekspresi sambil tunjuk kat diri sendiri pakai dua2 telunjuk kiri kanan hehehehe..dgn harapan dia paham apa yg kita cuba maksudkan.

c) i picked those things pasal nak bagi contoh perkara2 yg tak boleh nak didescribekan konsepnya (like color ). contoh2 tu nama dia 'fundamental quantities'...fundamental pasal dah takleh nak describe lagi dah dgn cara lebih mudah. whatever word yg kita guna utk describe akan jadi circular logic atau circular definition.... macam u cakap mass tu.. mass ialah banyak mana benda yg ada dlm objek. objek pulak? objek ialah benda yg ada mass! and if u notice i used 'benda' for both objek and mass..so benda is objek and mass? see what i mean as circular definition? anyway.. but we know what it is anyway, cuma tak terungkap dgn kata2 aje.

>>> yes , I noticed and i have highlighted with my own postings..

we both agree that that strange little boy is cute indeed,
we  concur that relative comparison isthe key but eer you said that is not really  valid kot , sebab diabukan absolute value but then again ...Encik Heisenberg akan cakap ,nak buek cam ner ...?

but again
did you notice tak ? sebab i barunotice yg  kalau macam jisim , a mass of an object - we could easilyobtained the value by direct measurement using the scale weighing scaleetc etc or three balance beam tu  tapi in some cases we just need todepend on relative comparison

cuma your using the term circular logic and circular definition are rather cognitively really appealing at least to my retina and occipital lobes, in a way ...
boleh elaborate further tak on which circumstances these logics whatever it is ni could be applied , this is a new thing for me, please ..puhlleasse....

blastoff

Originally posted by saden at 1-2-2009 12:42 PM
mass ialah banyak mana benda yg ada dlm objek. objek pulak? objek ialah benda yg ada mass! and if u notice i used 'benda' for both objek and mass..so benda is objek and mass? see what i mean as circular definition? anyway.. but we know what it is anyway, cuma tak terungkap dgn kata2 aje.

Tu kalau you explain gitu , memang nampak circular , pi mai pi mai tang tu aje , tapi kalau you guna explanation macam kat bawah ni ( i ambik kat wiki aje ) maka tak lah circular definition pun kan mau kena perah otak untuk faham lah pulak

In phyisical science  mass refers to the degree of acceleration a body acquires when subject to a force : bodies with greater mass are accelerated less by the same force. One says the body of greater mass has greater inertia . The mass of an amount of matter in a chemical substance is determined in part by the number and type of atoms or molecules it contains, and in part by the energy involved in binding it together. According to special relativity, energy also has mass according to the principle of mass-energy equivalence as exemplified in the process of nuclear fusion and the bending of light .
In everyday usage, mass is commonly confused with weight . But, in physics  and engineering , weight means the strength of the gravitational pull on the object; that is, how heavy it is, measured in units of newtons . In everyday situations, the weight of an object is proportional to its mass, which usually makes it unproblematic to use the same word for both concepts. However, the distinction between mass and wieght becomes important for measurements with a precision better than a few percent (due to slight differences in the strength of the Earth's gravitational field at different places), and for places far from the surface of the Earth, such as in space or on other planets.

[ Last edited by  blastoff at 1-2-2009 08:13 PM ]

mbhcsf

Originally posted by blastoff at 1-2-2009 12:56 PM


I pernah tengok documentary mengenai seorang manusia yang ketika dia lengkap tubuh badan dia macam merasakan diri dia tak begitu berguna sangat , ye lah kan menjalani hidup macam manusia lain ...

well, it is possible to achieve the things that  you want if you put your mind to it . Meaning the kind of mind required is that of highly focused one, attentive and thorough plus strong determination and that's the motivation part .However, another  thing to remember is, sometimes when we are stretched to the limit and this is at the extreme end of the human capacity , you must know the energy required  or  utilised are so  great and sometimes might get our system overworked so

i am unsure whether physiologically  this is bad or good...anything Quran says about this?
u happened to know...?

interesting postings...

mbhcsf

kalau itu circular logic sebab it works in a loop kan so how's fuzzy logic works then ?

mbhcsf

In physical science  mass refers to the degree of acceleration a body acquires when subject to a force : bodies with greater mass are accelerated less by the same force.

jap naa..

F (N) = m( kg ) a ( accelaration) ms-2
         = kgms-2

ni definition untuk daya , Force (F) , rasanya.

One says the body of greater mass has greater inertia .  ya lah Newton First Law and momentum ni logic ...o ok hmmmm interesting

The mass of an amount of matter in a chemical substance is determined in part by the number and type of atoms or molecules it contains, and in part by the energy involved in binding it together.  >>>> ni yg definition yg common  tapi ada gak elemen circular definition tu like " atoms and molecules it contains  the number thus we are talking about quantifying the mass" tapi then it links with energy = ya lah by Einstein punya equation kot , ? yg  E = mc2 ( Emek kekekekek)...so in a way dia boleh branching out jugak ler kirenya bila ASSOCIATION dibuat .....this is new, as kalau  link dibuat maka you still need another entity to describe it  tapi quantity ni ialah ( kalau if you go by physics) kuantiti terbitan , derivatives so ...hmm...so fundamental quantities kita tak boleh definisikan dgn words, tapi jika mass dikaitkan dgn kuantiti terbitan boleh pulak , tapi  adakah ia menerangkan mass itu?

ntah ...hehhheh...tak jugak kan...sebab mass - momentum ( inertia) - energy dah dikaitkan kaitkan
u agree ker ?
i am unsure , agagin there is no hard rules ...hmm? interesting

i hope sapa sapa in lingusitic especially yg semantic  tu boleh buat PhD out of this exploring the meaning of an attributes ..intellectual propertis tak pal ah...asalkan knowledge dapat kongsi



According to special relativity, energy also has mass according to the principle of mass-energy equivalence as exemplified in the process of nuclear fusion and the bending of light .

In everyday usage, mass is commonly confused with weight . But, in physics  and engineering , weight means the strength of the gravitational pull on the object; that is, how heavy it is, measured in units of newtons . In everyday situations, the weight of an object is proportional to its mass, which usually makes it unproblematic to use the same word for both concepts. However, the distinction between mass and wieght becomes important for measurements with a precision better than a few percent (due to slight differences in the strength of the Earth's gravitational field at different places), and for places far from the surface of the Earth, such as in space or on other planets.

>>> yg ni tak pa ...it's ok.

i nak solat jap

[ Last edited by  mbhcsf at 1-2-2009 02:10 PM ]

blastoff

Originally posted by mbhcsf at 1-2-2009 02:08 PM

jap naa..

F (N) = m( kg ) a ( accelaration) ms-2
         = kgms-2

ni definition untuk daya , Force (F) , rasanya.

One says the body of greater mass has greater inertia .  ya lah Ne ...

article kat bawah ni senang sikit nak faham mengenai definition mass nih , mass dalam konteks apa yang berlaku pada berbagai galaxies in space adalah lebih mudah untuk di fahami , pada I la

I interested tentang teori "dark matter and dark energy " kat berzillion galaxies tu , yang  bertindak macam glue to make sure everything in space is in good order and run smoothly . Apa akan jadi pada dark matter and dark energy tu once kiamat berlaku ? Dalam Quran Allah sebut mengenai macam mana Allah jadikan semua di langit teratur aje ..... itu clue tentang wujudnya satu daya ( tak kiralah nama apa pun daya tu kan ) yang memegang semua galaxies ni supaya berjalan menurut yang sepatutnya .....  tapi para pengkaji cuma baru tau aje mengenai dark matter and dark energy nih , itu pun teori saja la , diberi terms gitu pun sebab mereka tak boleh nampak apa pun sebab kawasan yang ada dark matter and dark energy tu hitam aje ... then this means kita kembali membicarakan mengenai black lah kan



Definition of Matter

by Ron Kurtus (revised 31 October 2007)

Matter is what makes up all substances. We normally look at matter as the molecules and atoms that make up material and chemical substances. But also, subatomic particles such as protons and electrons are considered matter. Major characteristics or properties are that matter takes up space and has mass. There are also variations of matter, such as antimatter and dark matter.
Questions you may have include:

• How does matter take up space?
• What is mass?
• What are the variations of matter?

Matter takes up space

Particles of matter have size and take up space. At the very least, all matter has three dimensions: length, width and height. This is somewhat obvious when you look at various objects around you. They all take up space.

Note: There are theories that matter may consist of many more dimensions. Since we consist of matter and also are 3-dimensional objects, we cannot experience or measure other dimensions except through mathematical theories.

Measurements have been made of the diameter of various atoms and the space they take up. It is assumed that the various subatomic particles also have a physical size and take up space.

Joke:
Teacher to student: "What is matter?"
Student: "Nothing's the matter. Everything's fine.

Matter has mass, but mass is difficult to define. One circular definition is that mass is how much matter there is in an object. Since mass is a very fundamental property, like distance and time, it can only be defined indirectly.
Quantities of matter will attract each other through a gravitation force related to the amount of mass in the objects. Likewise, the inertia of an object is dependent on its mass.
Typically, we use matter as a catch-all term related to objects, while we use mass to describe what happens to the matter.

Variations of matter

One variation of matter is antimatter. It simply consists of mirror images of common subatomic particles that have the opposite electrical charge and sometimes opposite spin. An antiproton is the same as a proton, except that it has a negative (−) electrical charge instead of a positive (+) charge. An antineutron has a spin component in the opposite direction of a neutron. These particles are still matter.

Another variation of matter, called dark matter, is still a theory. Astronomical measurements indicate that some galaxies have more mass than is observed. The theory is that there exists some sort of "dark matter" that cannot be seen but that has an influence on the gravity of those galaxies.

Summary

Matter is what makes up all substances. Molecules, atoms and sub-atomic particles are all matter. The major properties of matter is that it takes up space, has mass and attracts other matter with gravity. There are different opinions on whether photons are matter.

[ Last edited by  blastoff at 1-2-2009 03:27 PM ]

blastoff

Originally posted by mbhcsf at 1-2-2009 02:08 PM
ntah ...hehhheh...tak jugak kan...sebab mass - momentum ( inertia) - energy dah dikaitkan kaitkan
u agree ker ?
i am unsure , agagin there is no hard rules ...hmm? interesting

Bila di lihat pada statement yang merah bawah ni ,  maka I rasa memang itu aje la kan cara nak ukur mass ni gamaknya lah for now , kena dikaitkan kaitkan yer  


Mass

Mass is a measure of the number of atoms in an object combined with the density of those atoms. Usually people measure mass in kilograms. You can tell how much mass something has by measuring how hard it is to get that thing to change directions or slow down.

If you're driving a big truck, for instance, you're going to need a lot stronger brakes to stop the truck than if you were riding a bicycle. That's because the truck has more mass than the bicycle, and force = mass x acceleration. Even if the truck and the bike were going the same speed, it would take a lot more force to stop the truck, because it has a lot more mass.
Mass is not the same as size - some big things, like balloons, are very light, while some small things, like a lead bullet, are very heavy. The truck we were talking about would be the same size whether it was empty or full, but it would have a lot more mass if it was full - and it would be even harder to stop.
People often get mass mixed up with weight, because when you're on Earth, the two are pretty much the same - things with more mass also have more weight. The truck would be heavier than the bike. But weight changes depending on how much gravity you have pulling on you - the same truck would be lighter on Mars or on the Moon, and it wouldn't weigh anything at all in space, but it would always have the same mass.

[ Last edited by  blastoff at 1-2-2009 05:51 PM ]

mbhcsf

I interested tentang teori "dark matter and dark energy " kat berzillion galaxies tu , yang  bertindak macam glue to make sure everything in space is in good order and run smoothly . Apa akan jadi pada dark matter and dark energy tu once kiamat berlaku ?  Dalam Quran Allah sebut mengenai macam mana Allah jadikan semua di langit teratur aje ..... itu clue tentang wujudnya satu daya ( tak kiralah nama apa pun daya tu kan ) yang memegang semua galaxies ni supaya berjalan menurut yang sepatutnya .....  tapi para pengkaji cuma baru tau aje mengenai dark matter and dark energy nih , itu pun teori saja la , diberi terms gitu pun sebab mereka tak boleh nampak apa pun sebab kawasan yang ada dark matter and dark energy tu hitam aje ... then this means kita kembali membicarakan mengenai black lah kan

just to add on something

sekarang ni i tatau sama ada depa dag setuju ker yg universe ni tengah expanding ? itu satu lagi benda yang dikaji jugak


u interested in those "matter" matters

how about this

Surah Hud ayat  7 ....?

".... His throne was on water ..."  hmmm sounded interesting kan?