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Datum gepubliseer: 09 Oct 2011
'n Baie weird formule. E=energie, m=massa en c=die spoed van lig.
Ek het probeer leer wat Einstein met die formule bedoel het en toe op Wickedpedia gaan lees oor dit. Ek het dit so snaaks gevind dat ek nounog lag.
Ek verstaan nie eintlik hoekom hulle 'n 2 in die lug laat hang nie want mens kan netsowel skryf E=mcc. Dit beteken dieselfde maar dalk lyk en klink dit meer fancy?
Kom ek try meer ernstig daarna kyk. Wat het die spoed van lig met die massa of die hoeveelheid energie te doen?
"In physics, mass–energy equivalence is the concept that the mass of a body is a measure of its energy content. In this concept the total internal energy E of a body at rest is equal to the product of its rest mass m and a suitable conversion factor to transform from units of mass to units of energy."
Okay, om seker te maak die konsep dat die massa van 'n ding 'n meting van die energie inhoud daarvan is het ons iets nodig om die meting van massa te kan transformeer na 'n meting van die energie inhoud van die ding. Okay, ons maak so. Ons gebruik die spoed van lig. Hoekom?
" If the body is not stationary relative to the observer then account must be made for relativistic effects where m is given by the relativistic mass and E the relativistic energy of the body."
Hier verloor hulle my. Die meting hang af van die relatiewe spoed van die ou wat dit wil meet. Hierdie stelling kom verder aan in die artikel weer voor:
"This means that the amount of relativistic energy, and therefore the amount of relativistic mass, that an object is measured to have depends on the observer."
Wat de fok beteken dit? Die spoed waarteen die "observer" beweeg verander die meting? 'n Ou wat moerse vinnig vlieg meet verkeerd weens sy brein te veel G's beleef en hy nou kokaai kyk en dink? Sy meetinstrument word korter weens dit vinniger beweeg en dit dus foutief raak en foutief meet? As hy vinnig genoeg beweeg gaan dit onsigbaar word want dit word mos al hoe korter!? Gelukkig gaan die ding wat hy wil meet ook onsigbaar plat word. Nevermind, die ou wat dit probeer meet gaan ook onsigbaar plat word! LMGA!
No shit, laat ek eers weer bykom.
"E=mcc where E is energy, m is mass, and c is the speed of light in a vacuum. The formula is dimensionally consistent and does not depend on any specific system of measurement units. For example, in many systems of natural units, the speed (scalar) of light is set equal to 1, and the formula becomes the identity E = m; hence the term "mass–energy equivalence".[2] The equation E = mc2 indicates that energy always exhibits relativistic mass in whatever form the energy takes.[3] Additionally, in systems which have no momentum (or are viewed in their center of momentum frame), then the equation E = mc2 also continues to be correct. Mass–energy equivalence in either of these conditions means that mass conservation becomes a restatement, or requirement, of the law of energy conservation, which is the first law of thermodynamics.
Okay, blykbaar weet ons dat energie gelyk aan die massa by 'n stilstaande voorwerp is. E = m. In die geval moet mens c vervang met 1 want 1 maal enigiets bly 1 en 1 kwadraat bly dus ook 1 (1 x 1 = 1 how surprising) en sodoende kan E=m waar wees. Nou weet ons met behulp van die formule dat E = mcc dat E = m vir stistaande goed OF vir iets wat stilstaan in veregelyking met die ou wat dit probeer meet, wat ons alles klaar besluit het voor ons die formule gebruik het. Slim hè? Dit moet wees anders is 'n ander mensegemaakte wet, die een van termodinamika verkeerd. Wow, prima logika!
Dis fokkol, check nou hier:
"Mass–energy equivalence does not imply that mass may be "converted" to energy, and indeed implies the opposite. Modern theory holds that neither mass nor energy may be destroyed, but only moved from one location to another. Mass and energy are both conserved separately in special relativity, and neither may be created nor destroyed. In physics, mass must be differentiated from matter, a more poorly defined idea in the physical sciences. Matter, when seen as certain types of particles, can be created and destroyed (as in particle annihilation or creation), but the precursors and products of such reactions retain both the original mass and energy, each of which remains unchanged (conserved) throughout the process. Letting the m in E = mc2 stand for a quantity of "matter" (rather than mass) may lead to incorrect results, depending on which of several varying definitions of "matter" are chosen."
Fok die feit dat ons nie eers weet hoe om materie te definieer nie en as ons dit verkeerd definieer gee die wonderlikste formule ooit ons verkeerde resultate!!!
"E = mc2 has sometimes been used as an explanation for the origin of energy in nuclear processes, but mass–energy equivalence does not explain the origin of such energies. Instead, this relationship merely indicates that the large amounts of energy released in such reactions may exhibit enough mass that the mass-loss may be measured, when the released energy (and its mass) have been removed from the system."
Die formule werk alweer nie reg nie! Nevermind, ons karring aan.
"Einstein was not the first to propose a mass–energy relationship (see the History section). However, Einstein was the first scientist to propose the E = mc2 formula and the first to interpret mass–energy equivalence as a fundamental principle that follows from the relativistic symmetries of space and time."
Nou begin ek verstaan. Dis oor Einstein tyd verkeerd verstaan het en hy is nogsteeds nie die enigste een nie.
Ek raak nou verveeld met die onderwerp so ek sal dalk later weet verder uitbrei oor die komiese aspekte van fisika. Net nog een grappie verderaan in die stuk puik akademiese werk:
"Massless particles have zero rest mass" Wow, mens kry bestaandes wat nie bestaan nie! Dit het geen massa nie en dus ook geen energie nie. Wat de fok bly oor???
Ek stel voor hulle bring 'n neutrino op spoed totdat dit die spoed van lig oorskry en dan kyk hulle of die neutrino by die wegspringplek aangekom het voor hulle met die eksperiment begin het. LMGA!
Slotsom: Einstein was 'n dom fokker wat liewers moes aanhou stamps op patente stamp.