How did E mc 2 come about???

Shows that the object still has energy at rest with respect to a frame of reference. e in the formula can be seen as the total energy of the object, which is proportional to the total mass of the object (which includes the mass at rest and the mass due to motion), and only when the object is at rest is it related to the (stationary) mass of the object (in the Newtonian system).'Quality') in direct proportion. This also shows that the total mass of the object and the mass at rest are different.

The mass-energy equation e=mc, where e is energy, m is mass, and c is the speed of light (constant, c=299792458m s).

e=mc2 is an equation used to describe the equivalence relationship between mass and energy. e=mc2 was proposed by Albert Einstein, so this equation, also known as Einstein's mass-energy equation, is mainly used to describe the equivalent relationship between mass and energy, which can explain the mass loss in nuclear transformation reactions and calculate the energy of particles in high-energy physics.

There is a misunderstanding ... Try explaining...

e=mc 2, this is the formula for the conversion of mass and energy, but it is not a panacea, it can only be used in certain places, and some characteristics of photons make the formula meaningless.

The previous explanation is certainly difficult to accept, so let's explain it below.

1. Photons are by no means the yellow balls in most **, all elementary particles, including photons, are 0-dimensional things (3 dimensions are spheres, 2 dimensions are infinitely thin planes, 1 dimension is infinitely thin ropes, and 0 dimensions are infinitesimally small points).

2. Photons are particles of light, but light can also be interpreted as waves, and the formula e=hv uses the characteristic of wave-particle duality, and the energy of photons is Planck's constant frequency of light.

The front is all nonsense, in order to supplement common sense, the following questions.

Einstein is outdated, and the first thing to know about this problem is that the mass is **, and the mass is affected by the passage of particles through the Higgs field composed of Higgs bosons"Obstruction"generated. The photon is characterized by its ability to travel through the Higgs field without being hindered, so it has no mass, so it seems that no matter how large the e in e=mc 2 is, m will always be 0.

If you are interested, look for the Higgs boson, there should be a detailed explanation, as for there, you know the drop!

e=mc is the mass-energy equation (mass-energy equation).

The mass-energy equation is an equation that describes the equivalence relationship between mass and energy. In classical physics, mass and energy are two completely different concepts, there is no definite equivalence relationship between them, and objects of a certain mass can have different energies; The concept of energy is also relatively limited, and there are years of collapse kinetic energy and potential energy in mechanics.

In the special theory of relativity, the concept of energy is generalized, mass and energy have a definite equivalence relationship, and the mass of the object is m, then the corresponding energy is e=mc.

The mass-energy equation e=mc, where e is energy, m is mass, and c is the speed of light (constant, c=299792458m s). Presented by Albert Einstein. This equation is mainly used to explain the mass loss in nuclear transformation reactions and to calculate the energy of particles in high-energy physics.

This also led to the birth of de Broglie waves and wave dynamics.