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Why did Albert Einstein became the man of the century for his E=mc2?

2006-06-16 13:14:27 · 16 answers · asked by Alfred 1 in Science & Mathematics Physics

16 answers

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.

2006-06-16 13:48:58 · answer #1 · answered by Burlesque Beauty 3 · 0 1

The formula,"E=MC^2", was develloped by
Henri Point Carre in 1900.
Einstein used it for his theory of relativity.
The formula represents the structural energy of the Atomic masses.
If you break to basic masses of the electron to pieces and these pieces were to move into space at the speed of light then their energies would sum up to M*C^2.= mass x final velocity of light squared.
Note the formular does not say mass is energy . This is a misconception.Mass is an entity and Energy is a process defined as the product of a moving mass and the final velocity ^2 of that particular mass.
Hence The formula correct interpretation is Equivalency not Equality. It only means that we can calculate The mass of an object if we know its the values of its Energy Process that it has during its its motion.

There was a story about people believing that the King was well dressed when in reality he was naked.

So is the misconception about Point Carre's Equation of E=MC^2

The Theory of Relativity was about Einstein's two postulates.

What made Einstein famous is that he and his wife worked very hard on developing theory. He won his nobel prize not on relativity but on the explanation of Brownian motion and on the Photoelectric effect .He lived at a time when people did not believe that the atom existed. The respect that I have for Him is that he wrote 45000 papers relating to physics and other subjects.. He developed a form of Aether theory which was called the theory of General relativety.
This was a laborious mathematics were he expressed the gravity pressure in terms of space time curvature using tensor
analysis.I dont know why they did not make him the man of the century when his was alive.

2006-06-16 15:08:58 · answer #2 · answered by goring 6 · 0 0

This equation expresses the equivalence of mass and energy.

It was disovered before the proper development of quantum mechanics, so the mechanisms by which mass can be converted to energy and vice versa were not thoroughly understood at the time.

But it highlighted that it is not meaningful to talk about mass or energy, ot the conservation of either - it is only meaningful to talk about mass-energy.

To see why this is the case, think about a ball thrown by you at v m/s. It has kinetic energy 1/2 mv^2. But now think about it if you are moving along at the same speed as the ball. v = 0 now, so it has energy 0. On the other hand, from the balls perspective, you are moving so you now have some kinetic energy.

This is easy to reconcile when you can simply add velocities in the Newtonian way, because the total kinetic energy stay the same invariant of the frame of reference chosen. Its not so easy in special relativity, because once you allow that the speed of light is constant, then velocities no longer add in a straight forward manner.

E = mc^2 captures this by effectively allowing added energy to make things more massive. So if you tried to accelerate your ball to the speed of light by applying a constant supply of energy, as you got closer to the speed of light the velocity you added per unit of energy would get less and less. But you would have added the energy to the particle, so you must conclude that its mass has increased.

2006-06-16 21:17:13 · answer #3 · answered by Epidavros 4 · 0 0

It means that if you wanted to spontaneously create some matter, it would cost you an amount of energy equal to the mass of the matter in kg times the speed of light squared. Also, if you were to completely eradicate some matter from existance, that would be how much energy would be released. When physicists cause certain particles to collide in "atom smashers", the particles are going at speeds that are close to the speed of light, and therefore have ungodly amounts of Kinetic Energy. When the particles collide, the old particles are destroyed and new particles are created, but the new particles are more massive than the old ones. This is because in the collision, most of the kinetic energy was converted into matter in amounts determined by E=mc^2. Also, when physicists cause matter to come in contact with antimatter, they completely annihilate each other and both turn into pure energy. Guess what--E=mc^2. This law also extends the principles of conservation of energy and conservation of mass because mass can be converted into energy and vice versa. However, the total amount of mass/energy in the universe is a constant. One final interesting bit is that when particle physicists talk about the mass of a subatomic particle (proton, neutron, etc.), they usually refer to the mass in terms of energy, in this case using the unit GeV (Giga electron-volt).

2006-06-16 14:27:52 · answer #4 · answered by Anonymous · 0 0

Job 28:28 (English Standard Version) 28And he said to man,'Behold,(A) the fear of the Lord, that is wisdom, and to(B) turn away from evil is understanding.'" Cross references: A.Job 28:28 : Deut 4:6; Psalm 111:10; Prov 1:7; Eccles 12:13 B.Job 28:28 : Prov 3:7; 14:16; 16:6 Proverbs 3:7 (English Standard Version) 7(A) Be not wise in your own eyes; (B) fear the LORD, and turn away from evil. Cross references: A.Proverbs 3:7 : Rom 12:16; Proverbs 12:15 B.Proverbs 3:7 : Job 1:1; 28:28 Hebrews 13:1 (English Standard Version) Hebrews 13 Sacrifices Pleasing to God 1Let(A) brotherly love continue. Cross references: A.Hebrews 13:1 : Rom 12:10; 1 Thess 4:9; 1 Pet 1:22; 2 Pet 1:7; 1 Pet 2:17; 3:8; 1 John 3:10; 4:7, 20, 21 In my own words: If i may, let me tell a very short story of how i see it. Your space ship as just landed on the moons surface , its a routine mining mission and the the robotic arm fails and you need to suit up and go out side to fix it, while your out there over the com set in your helmet you hear your fellow astronaut in your ship say "your running out of air in your suit you need to return to the ship something must be wrong with the suit your in" You tell them " I got this i am almost done " Much the same is the case of our souls, while God is in the right by telling us to come back IN now, we think we have all the time we need, when we should listen and repent, and get back IN the ship, but in this case its not only our lives , but our very soul is at risk. Jesus said this in John 10 '' My sheep hear my voice " some 30 years ago i heard that voice and i returned to the Ship.

2016-05-19 21:56:09 · answer #5 · answered by Anonymous · 0 0

E=mc² is a physical equation, first given by Albert Einstein in his 1905 paper "Does the Inertia of a Body Depend Upon Its Energy Content?" ("Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig?''"). The equation defines a relationship between energy and mass (matter). It is one of the best-known equations of all time — even those who may not explicitly know what it means may have some connotation of its meaning through culture.

2006-06-16 13:18:02 · answer #6 · answered by Chris_Knows 5 · 0 0

This equation, though appears simple, has made a revolutionary change in the concepts and laws of Physics, after Newton’s laws of motion and gravitational laws.

Till the time of this equation mass and energy were considered to be two different entities. There were two separate principles; principle of conservation of mass and principle of conservation of energy. Conservation means that it cannot be created and it cannot be destroyed. The two concepts were firmly established and no one can imagine that a mass can be destroyed to produce equivalent energy and vice versa.

It was experimentally verified that light’s speed is measured to be the same by two different observers moving with relative speed.

Einstein postulated the length, mass and time must change their seemingly absolute values according to the ratio of the speed of the material to the speed of light. That is “the mass, length and time is relative”.

Further a material cannot attain the speed of light or the maximum limit of speed of material is the speed of light.

The concept of mass has abruptly changed; one cannot think mass and energy as separate entities; they are different forms of energy. Thus a mass which is at rest has energy. One can use the unit of mass as unit of energy and vice versa.

The conversion formula is E = MCC.

A mass at rest is said to have an energy given by E = M0CC.

A mass moving with a speed is said to have a total energy is said to have an energy, given by E = MCC. Note that the speed of the object is not in this equation. If we want to use the speed of the object we must replace M by appropriate formula.

The kinetic energy of the object is no more ½ M vv; but it is more than 1/2Mvv and is found by (M- M0) CC.

We can now think of particle having no rest mass like photon. But photons have kinetic energy given by hn or mCC where m corresponds to the mass equivalent of the total energy hn.

Having accustomed to the concept that mass is something which will not change unless some mass is added to it, even now we make mistake in dealing with relativistic concepts.

It is therefore no wonder that Einstein became the man of the century.

2006-06-16 16:16:05 · answer #7 · answered by Pearlsawme 7 · 0 0

E=mc2 is a definition and a law of nature.Like F=MA it needs no proof.You can use it or not.E=mc2 says that you can count the number of photons that make up the atoms in an object travelling c2.You can hardly have c2 without c.

2006-06-17 08:26:51 · answer #8 · answered by Balthor 5 · 0 0

E = Energy
M = Mass
C2 = Speed of light in a vacuum.

E=mc2

2006-06-16 13:18:30 · answer #9 · answered by Sufjan Rules 2 · 0 0

E represents energy, m represents mass, and c² is a very large number, the square of the speed of light its the connection between energy and mass

2006-06-16 13:19:37 · answer #10 · answered by Anonymous · 0 0

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