What is E=MC2 ? And did anyone ever find it out?

Answer 1

Einstein discovered that mass is related to energy. It's called his theory of relativity. Nuclear physicists work with the principle all the time. It explains how nuclear power plants and nuclear bombs work. The equation is the relationship between mass and energy. Energy can be converted into mass, and mass can be converted into energy.

E(energy) = m(mass) times C(the speed of light) squared.

Now this is getting into some hardcore physics, and I haven't had a physics class in a while so this stuff is kinda foggy. But if two atoms of the same element (that have, I believe, a lower atomic number than that of iron) collide and join together to make an atom that is bigger, but lighter in weight than the original two atoms together, there is missing mass. The two atoms beforehand weighed more than when they were combined to make one atom. this poses a problem, because mass can't just disappear. In reality the mass was converted into energy.

And just a teensy bit of mass equals a LOT of energy. (think about it, you're multiplying by the speed of light squared!)

That is part of what makes atomic boms give off such huge explosions.

That is, in short, what the equation represents

Answer 2

Albert Einstein came up with this formula which means Energy equals Mass Combined Squared

Answer 3

E=MC2 is energy eguals mass times the speed of light in a vacuum squared. it's usually used to convert units of mass to units of energy. Einstien derived it as a consequence of the special theory of reletivity.

Answer 4

Einstein's theories

--Exhibit Contents-- Exhibit HOME Formative Years The Great Works - 1905 World Fame Public Concerns Quantum and Cosmos Nuclear Age Science and Philosophy "The World As I See It" - - - - - - - - - - - - - - - - - - - - More About Einstein Site Contents


"In light of knowledge attained, the happy achievement seems almost a matter of course, and any intelligent student can grasp it without too much trouble. But the years of anxious searching in the dark, with their intense longing, their alterations of confidence and exhaustion and the final emergence into the light -- only those who have experienced it can understand it."


Einstein's theories sprang from a ground of ideas prepared by decades of experiments. One of the most striking, in retrospect, was done in Cleveland, Ohio, by Albert Michelson and Edward Morley in 1887. Their apparatus, shown above, was a massive stone block with mirrors and crisscrossing light beams, giving an accurate measurement of any change in the velocity of light. Michelson and Morley expected to see their light beams shifted by the swift motion of the earth in space. To their surprise, they could not detect any change. It is debatable whether Einstein paid heed to this particular experiment, but his work provided an explanation of the unexpected result through a new analysis of space and time.

As noted on the previous page, when Einstein used his equations to study the motion of a body, they pointed him to a startling insight about the body's mass and energy.




Conversion of energy into mass.

The deep connection Einstein discovered between energy and mass is expressed in the equation E=mc² . Here E represents energy, m represents mass, and c² is a very large number, the square of the speed of light. Full confirmation was slow in coming. In Paris in 1933, Irène and Frédéric Joliot-Curie took a photograph showing the conversion of energy into mass. A quantum of light, invisible here, carries energy up from beneath. In the middle it changes into mass -- two freshly created particles which curve away from each other.


Click here for Einstein's voice explaining the formula


Meanwhile in Cambridge, England, the reverse process was seen: the conversion of mass into pure energy. With their apparatus John Cockcroft and E.T.S. Walton broke apart an atom. The fragments had slightly less mass in total than the original atom, but they flew apart with great energy.

(In 2005, the centennial of Einstein’s great year, a team made the most accurate test yet of his equation. They measured the tiny change in mass of radioactive atoms before and after the atoms emitted gamma-rays. And they measured the energy of the rays. The missing mass times c² equalled the energy of the rays to within 4 hundred-thousandths of one percent.)

Answer 5

Energy equals mass times the speed of light raised to the second power

Answer 6

Einstein found this relativity equation which means Energy = Mass times Speed of Light square (c=3.0x10^8 m/s)

Answer 7

E = mc^2 is a thanks to account for the flexibility kept in chemical and atomic bonds and the replace in mass even as atoms are mixed into molecules. on condition that protons are at the same time repulsive, i.e., they don't like being close jointly, some ability could triumph over this repulsion. even as atomic bonds are damaged, inclusive of even as Uranium fissions, a number of that binding ability is released, and would nicely be used to generate steam to exhibit electric powered turbines. different atomic bonds truly create ability even as they are made, inclusive of contained with regards to hydrogen fusion into helium. human beings have already harnessed such ability. The hydrogen bomb is a short fusion reaction that motives hydrogen atoms to fuse into helium, which truly releases ability, precisely like the solar. Many fusion reactors have also finished an same, in an attempt to keep up a non-stop fusion reaction for generating capacity.

Answer 8

Einstein. Basically when you split an atom, the energy that comes out (E) equals the mass (M) of the atom times the speed of light (C) squared.

Answer 9

This equation, as derived by Albert Einstein, is energy equals mass times the speed of light squared.... as revealed by the awesome power of the hydrogen bomb...

Answer 10

The energy (E) in every particle of matter is equal to the mass of the particle of matter (M, should be m) multiplied by the squared speed of light (C2, should be c^2). Albert Einstein "found it out".