Einstein introduced theory of relativity which means e=MC-2.what is it stands for?
337886
If any object moves with certain speed its mass increases.\n\nThis concept was unknown to classical physics.\n\nThe increase in mass is very small when the speed is NOT comparable to the speed of light.\n\nWhen the speed approaches the speed of light the increase in mass is tremendous.\n\nThe mass becomes infinite when it speed is equal to the speed of light.\n\nThus we have a NEW type of energy called “ENERGY OF THE BODY” due its mass.\n\nEvery object has some “energy of body” called its REST MASS ENERGY when the speed is zero.\n\nThis ‘energy of body’ is calculated by a very simple formula. E = M0. C.C.\n\nM0 is the mass when the velocity of the body is zero. C is a constant = 3x 10^ 8 m/s^2. \n\nIf the body attains a velocity v, its mass increases to M.  (There is a formula to calculate the mass of a body when it moves with a velocity v) \n\nThe ‘energy of body’ is now M. C.C.\n\nThe difference between the two states of energies of body is the kinetic energy of the body. In classical physics it was equal to ½ m .v.v. \n\nBut now we see that it equal to M. C.C - M0. C.C. = (M - M0). C.C.\n\nIf (M - M0) = m, Then we get kinetic energy of motion is m . C.C\n\nNote that all formula has the same form mass x a constant x constant.\n\nBut the mass involved is different in different equation.
541498
it is a conception of Space, made not only of 3 dimension, but 4. The fourth is Time. The relativity equations are made in this 4 dimension Space-time "Space".\nThe idea was not from Einstein, but he was the one who hd spread it.
289580
E is Energy\nm is mass\nc is the speed of light\nenergy=mass times the speed of light squared\nthis is the equation for Relativity.
8321
The theoretical physics equation E = mc2 states a relationship between energy (E) and mass (m) first formulated by Albert Einstein in his 1905 paper "Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig?" ("Does the Inertia of a Body Depend Upon Its Energy Content?", published in Annalen der Physik on September 27), one of the articles now known as his Annus Mirabilis Papers.
1055212
E=mc²\n\nOne of the most famous equations in the world, even to non-physicists, the theoretical physics equation E = mc2 states a relationship between energy (E), in whatever form, and mass (m). In this formula, c², the square of the speed of light in vacuum, is the conversion factor required to formally convert from units of mass to units of energy, i.e. the energy per unit mass. In unit specific terms, E (joules) = M (kilograms) multiplied by (299792458 m/s) 2.\n\nMeanings of the formula\nThis formula, which was discovered by Albert Einstein, proposes that when a body has a mass (measured at rest), it has a certain (very large) amount of energy associated with this mass. This is opposed to the Newtonian mechanics, in which a massive body at rest has no kinetic energy, and may or may not have other (relatively small) amounts of internal stored energy (such as chemical energy or thermal energy), in addition to any potential energy it may have from its position in a field of force. That is why a body's rest mass, in Einstein's theory, is often called the rest energy of the body. The E of the formula can be seen as the total energy of the body, which is proportional to the mass when the body is at rest.\n\nConversely, a single photon travelling in empty space cannot be considered to have an effective mass, m, according to the above equation. The reason is that such a photon cannot be measured in any way to be at "rest" and the formula above applies only to single particles when they are at rest. Photons are generally considered to be "massless," (i.e., they have no rest mass or invariant mass) even though they have varying amounts of energy.\n\nThis formula also gives the quantitative relation of the quantity of mass lost from a resting body or an initially resting system, when energy is removed from it, such as in a chemical or a nuclear reaction where heat and light are removed. Then this E could be seen as the energy released or removed, corresponding with a certain amount of mass m which is lost, and which corresponds with the removed heat or light. In those cases, the energy released and removed is equal in quantity to the mass lost, times the speed of light squared. Similarly, when energy of any kind is added to a resting body, the increase in the resting mass of the body will be the energy added, divided by the speed of light squared
200022
Friedman Solved Einstein's field equation asuming the abscence of mass and he still came out with a description of energy in the Universe.\nWhat exists in the Univerves is Power in the Structure of Space. Relativity theory calls it space- time.Whether we call it Aether or Time -Space ,Its still the same Animal.\nThe can only be so and only if the Universe has restrains. your question was one of the most interesting ones.
272146
Special relativity (SR) or the special theory of relativity is the physical theory published in 1905 by Albert Einstein in his article "On the Electrodynamics of Moving Bodies". It replaced Newtonian notions of space and time and incorporated electromagnetism as represented by Maxwell's equations. The theory is called "special" because it applies the principle of relativity only to the "restricted" or "special" case of inertial reference frames in flat spacetime, where the effects of gravity can be ignored.\n\nSpecial relativity inter-relates space and time in such a way that the speed of light is constant, and the theory leads to situations where two observers can disagree over time intervals and distances between events, but without ever disagreeing about what events actually happened. It shows that time can pass more slowly if an observer is moving, depending on their relative speed.\n\nThe theory also predicts the famous equation E=mc². Special relativity applied to objects travelling close to the speed of light as opposed to the lower speeds covered by Newtonian theory. It is now well established although Newton's methods are commonly used to cover slower objects.
588727
The equation E=MC2 is the derivation from Einstein's relativity theory. this is not a case of the classic mechanics. this equation explains the value of energy of an atom. \n\nE-> Energy\nM-> mass of the atom\nC-> speed of the light.\n\nin this only speed of the light is constant. the mass differs by frame to frame in accordance to theory of relativity. so the energy of the atoms also differs with frame to frame. but this equation is not fully correct and Lorentz had made corrections to it. \n\nAnybody who can prove this equation as a total wrong thing with strong evidences will be announced as the greatest of the universe..
1156590
E = energy\nm = mass\nc^2 = speed of light squared\nMass and energy are equivalent.\nThis is a part of theory of relativity of Albert Einstein.\n\nDuring nuclear fission and fusion about 1% mass disappears and an equivalent amount of energy comes free.\n\nDuring annihilisation all mass 'changes' into energy.\nDuring creation of an electron and positron the inverse happens.
236771
Try this link - it's Relativity in very short words.\n\nhttp://www.muppetlabs.com/~breadbox/txt/al.html
1139014
E=MC2 means energy equals mass times the speed of light squared.  It applies to nuclear reactions because it disproves the Law of Conservation of Matter, which states neither mass nor energy can be destroyed.  In nuclear reactions mass can be converted into energy and vis versa, proven by Einstein's equation, thus causing the Law of Conservation of Matter to be re-written as neither mass nor energy can be destroyed in a chemical reaction.  This was an amazing breakthrough for the scientific world as we came into the nuclear age.
537611
Do you know Einstein's theory e=mc(^2)? In theory (taking out the relevant c for these purposes), it means energy and mass are the same thing ("e" is energy, "m" is mass; a packet of light is considered a particle, etc). Mass and energy are never created or destroyed, simply "change" from one to the other. For example, you get up in the morning and you eat a carrot. I don't know why you'd do that, but say you do; where does that carrot go? G-rated/simply speaking, that mass is translated into energy for your body to use. Your body gives off energy through things like motion and heat when you move, but the mass/concept of the nutrients you received from that carrot weren't lost, were merely translated into an equivalent amount of energy, which your body then gives off. If you go from mass --> energy --> mass, hypothetically, repeatedly, hundreds and hundreds of times, you will end up with the same amount of mass/energy each time.
83538
E=m*c*c is one of the most famous formulae that exist. It is actually not the full formula, which is \n\nE^2= (m^2)( c^4) + (p^2 )(c^2)\n\nbut for an object at rest, momentum p=0, so we get the familiar equation. Here c is the speed of light in a vacuum, which is the speed limit for our universe (nothing can go faster than the speed of light, according to the special theory of relativity). \n\nThe equation E=mc^2 describes the amount of energy that can be released when matter of mass m is converted to energy E, as in a nuclear power plant or nuclear weapon. \n\nIt arrived as a consequence of Einstein (and other physicists at that time) considering what would happen if you moved very fast, close to the speed of light. This lead to the special theory of relativity, which made all kinds of wild predictions:\n\n1. As you go faster, your mass increases\n2. As you go faster, you shrink, front to back\n3. As you go faster, time travels slower. \n\nThe details get pretty complicated, but I have attached a PBS web site where you can listen to some interviews with famous physicists about what they think about E=mc^2.
8298
In the formula, E stands for energy, m stands for mass, and c-squared is a constant factor equal to the speed of light squared. The formula indicates that large quantities of energy can result from tiny amounts of mass if the mass is completely changed into energy. Developed by Einstein.
851776
E=mc^2\n\nwhere \n E is in joules or kg·m²/s²,\nm is in kilograms, and \nc equals speed of light, in meters/sec (approx 3*10^8)
63810
Albert Einstein shook the foundations of physics with the introduction ofestablished his Special Theory of Relativity in 1905, and his General Theory of Relativity in 1915.
127218
Relativity, as known to Galileo and Newton, refers to the idea that motion is relative to the observer.  Giving a simple example, on a calm day standing outside my house I think the air is not moving, while my friend riding in the back of a pickup truck feels the air blowing in his face.  However, both Newton and Galileo still believed there existed an "absolute" motion, as measured by the unchanging framework of the universe.\n\nWith the theory of Special Relativity in 1905, Einstein changed all that and revolutionized physics.  The main idea of special relativity is that the laws of physics should be the same for all observers moving at a constant speed. (Acceleration is not addressed in Special Relativity, but both acceleration and gravity are included in General Relativity, which Einstein formulated 10 years later.)  According to Special Relativity, there are no such things as absolute rest or absolute motion - speed and motion can only be measured against an arbitrary frame of reference, and one reference frame is as valid as any other.  Special Relativity also includes the concept that light travels at an absolute speed which is the same for all observers, regardless of the motion of the observer or the light source. Building on this concept, Special Relativity shows us that not only is motion relative, but so are many other familiar concepts like distance, time, and even energy.  In other words, different observers moving at different speeds will measure quantities such as length, time, and energy differently.  But each observer's measurement is equally valid.  It is the relativity of time that gives us the famous "twins paradox", where an astronaut travelling at very high speeds will age less rapidly than his twin back home on Earth.  Finally, Special Relativity gives us  the famous equation E=mc2, which establishes the equivalence of mass and energy.  All of these ideas were revolutionary and marked the end of Newtonian physics, which had reigned unchallenged for nearly 300 years.