Update 1: E = released energy m = mass frustration c = light speed.

E = MC 2 is a formula deduced by Einstein in a paper in 1905. Because the speed of light is very high,

About 300 thousand kilometers per second

The formula should be expressed in meters per second (m/s), that is, 300,000 x1000 = 3x108c2, that is, 9x10/6e, and the units of joule (j) and kilogram (kg) are also based on this principle. Neutrons shoot into the nucleus of a heavy gold medal, releasing several neutrons and energy. Neutrons shoot into other nuclei, releasing neutrons and energy by chain effect, which becomes a big bang. We often hear that the mass of antimatter and matter annihilated and destroyed becomes the energy of photons, which is E = MC 2. Although antimatter is an energy with an efficiency of 65,438+0,000%, it is extremely destructive. I think the energy of the whole big bang will become. Quality column ... 2006-10-2317: 28: 29 supplement: E = MC 2 is correctly spelled as e = m0c 2/(1-v 2/c 2)-m0c 2m 0 for an object.

The inertial mass will increase because its kinetic energy is converted into the mass of the object, and its mass is the first term of the formula, lacking C 2, that is, M0 1-V 2/C 2).

E=mc？ E = mc2 (pronounced as e equals the square of mc, also known as mass-energy conversion formula or mass-energy equation) is a theoretical physical formula to explain the relationship between energy (e, which can be in any form) and mass (m), where c is a constant representing the speed of light in physics. The meaning of the equation This formula shows that an object still has energy when it is at rest relative to the reference system, which is contrary to Newton's system, because in Newton's system, an object at rest has no energy. This is why the mass of an object is called static energy. E in the formula can be regarded as the total energy of the object, which is directly proportional to the total mass of the object (including the rest mass and the mass brought by motion). Only when an object is at rest is it related to its (static) mass (&; #39; Mass & # 39) is directly proportional. This also shows that the total mass and static mass of an object are different. On the contrary, a beam of photons propagates in a vacuum, and its rest mass is zero, but because they have motion energy, they also have mass. [Editor] Notes on different terms: In the use of some terms, mass only refers to static mass, because total mass and energy are equivalent concepts. If m refers to the rest mass, the formula should be rewritten as E0 = mc2. So γm is also the expression of total mass. [Editor] Meaning In the special theory of relativity, this formula shows that energy and mass are equal. Although many people don't know the true meaning of this formula, it has become one of the most famous formulas in human history and a part of culture. Some people think that this formula directly leads to the design and manufacture of atomic bombs, but in fact, the mass-energy conversion formula does not directly or indirectly promote the atomic theory and the design and manufacture of atomic bombs.

It is just one of the explanatory tools used by later generations to explain the principle of atomic bombs. Einstein's own contribution to the manufacture of atomic bombs lies in

"About the atomic bomb and Roosevelt, all I did was: in view of the danger that Chytra might have the atomic bomb first, I signed a letter to the president drafted by szilard." Collected Works of Einstein, Volume III, page 335. )。 [Editor] The background equation and its influence originated from Albert Einstein's research on the relationship between the inertia of an object and its own energy. The famous conclusion of this study is that the mass of an object is actually a measure of its own energy. In order to understand the importance of this relationship, we can compare electromagnetic force with gravity. According to the theory of electromagnetism, energy is contained in fields (electric field and magnetic field) related to force but not to charge. In the theory of universal gravitation, energy is contained in matter itself. Therefore, it is no accident that the mass of matter can distort space-time, while the particles of the other three basic interactions (electromagnetic interaction, strong interaction and weak interaction) cannot. This equation is crucial to the development of the atomic bomb. By measuring the difference between the masses of different nuclei and the sum of the masses of protons and neutrons, the estimated binding energy contained in the nuclei can be obtained. This not only shows that it is possible to release this binding energy through nuclear fusion of light nuclei and nuclear fission of heavy nuclei, but also can be used to estimate the amount of binding energy to be released. Note that the masses of protons and neutrons are still there, and they also represent an energy value. A famous tidbit is that Einstein first wrote the equation as dm = L/c? Use an "L" instead of an "E" to represent energy, and use E to represent energy in other places. One kilogram of material is completely equivalent to 89.

875

5 17

873

68 1

764 Joules or 24 Joules

965

42 1

632 kWh 2 1.48074 1 kiloton TNT equivalent is about 0.085 1900643 Quads (giga-British thermal units). It is worth noting that the actual static mass-energy conversion cannot be 100% effective. Theoretically, the perfect transformation is the annihilation of matter and antimatter; In most cases, many by-products are static mass instead of energy, so only a small part of static mass is really transformed. In this equation, mass is energy, but for the sake of brevity, the word transformation is often used to replace the equivalent relationship between mass and energy. In fact, it usually refers to the transformation between static mass and energy. [Editor] The low-energy strategy assumes that the rest energy is m0c? The total energy is kinetic energy plus energy at rest, and its relative kinetic energy is that at low speed, it still basically conforms to the classical expression of kinetic energy, so. Using Taylor series to expand γ can prove that the two formulas are consistent, and the above formulas can be replaced by the original equation.

So there is

or

That is, the relativistic expression of energy is different from the classical Newton expression with only kinetic energy. This shows that relativity is a higher-order correction of classical mechanics, and Newton and relativistic mechanics are not equivalent in low energy or classical fields. So what is equivalence? It is only an expression of kinetic energy, not total energy. In the extrapolation from classical mechanics to high speed, Einstein proved that classical mechanics was wrong. In the case of low-speed objects, such as those used to establish classical mechanics, classical mechanics is a subset of relativistic mechanics. These two theories will only lead to contradictions outside the classical field. [Editor] Einstein and his 1905 paper Albert Einstein did not accurately express this equation in his 1905 paper &; Quot is it dead? gheit eines K？ What is an energy company like? ngig？ & ampquot ("Does the inertia of an object depend on the energy it contains?" , published in the Yearbook of Physics on September 27th), this is one of his articles now called "Miracle Year Paper". The exact content of this paper is: "If an object emits energy L in the form of radiation, its mass decreases by L/c? . In this case, kinetic energy is radiant, and mass is what was usually referred to at that time, which is what we call static energy or constant mass according to the situation today. This is the mass difference before and after energy emission, which is equal to L/c? , rather than the overall mass of the object. At that time, it was only theoretical and had not been proved by experiments. [Editor] Other Contributions Einstein was not the only one who linked energy and mass, but he was the first person to introduce this as part of a larger theory, and it was the result derived from the premise of this theory. Umberto Bartocchi, a mathematical historian at the University of Perugia, said that Olinto de puletto, an Italian industrialist in Vicenza, published this equation two years ago. However, no mainstream historian thinks this conclusion is correct or important. They think that even though De puletto was the first person to discover this formula, it didn't really show its value until Einstein really linked it with the theory of relativity. [editor] TV biography E=mc? Used as the name of a TV biography of Einstein in 2005, which mainly tells the events between 65438 and 0905.

Reference: You can go to this website to refer to zh. *** /wiki/E%3Dmc%5E2。

He can work out several interesting reasons. First of all,

The faster the speed.

The greater the mass.

When matter reaches the speed of light,

The mass will be infinite.

But the infinitesimal second matter does not exist in the known field when it reaches the speed of light.

Probably in another space, no one has confirmed it.

Because this is a formula derived from the existing physics.

No one can deny this.

But no one can prove it, so Hawking extrapolated his theory to the level of time and universe, and many scientists also looked for evidence to confirm these theories in cosmic observation to understand this theory.

It is possible to go back to the past or the future.

Understand Zhou Yu

Looking for unknown space