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'''E=mc&sup2;''' is [[Einstein]]'s famous formula which asserts that the energy ('''E''') which makes up the [[matter]] in any body is equal to the square of the [[speed of light]] ('''c&sup2;''') times the inertial [[mass]] ('''m''') of that body.<ref>"... Einstein proves that energy and matter are linked in the most famous relationship in physics: E = mc&sup2;. (The energy content of a body is equal to the mass of the body times the speed of light squared.)" [http://www.pbs.org/wgbh/nova/physics/einstein-genius-among-geniuses.html Einstein: Genius Among Geniuses] - PBS's NOVA</ref> Although this mathematical relationship has been shown from experimental data, physicists have not been able to develop a widely accepted [[General Theory of Relativity|theory of general relativity]] to explain it.  In other words, no [[theory]] has successfully unified the [[law]]s governing [[mass]] (''i.e.'', [[gravity]]) with the laws governing light (''i.e.'', [[electromagnetism]]), and numerous attempts to derive '''E=mc&sup2;''' in general from first principles have failed. For this reason, Einstein's work is called the "[[Special Theory of Relativity|Theory of Special Relativity]]", because this part fits the facts leaving other parts unexplained.  [[Politics|Political]] pressure, however, has since made it impossible for anyone pursuing an academic career in [[science]] to even question the validity of this nonsensical [[equation]]. Some people believe that '''E=mc&sup2;''' is [[liberal claptrap]].  However, Einstein's theory of special relativity explains how much energy is released in nuclear reactors and atomic bombs.

'''E=mc&sup2;''' is [[Einstein]]'s famous formula which asserts that the energy ('''E''') which makes up the [[matter]] in any body is equal to the square of the [[speed of light]] ('''c&sup2;''') times the [[mass]] ('''m''') of that body.<ref>"... Einstein proves that energy and matter are linked in the most famous relationship in physics: E = mc&sup2;. (The energy content of a body is equal to the mass of the body times the speed of light squared.)" [http://www.pbs.org/wgbh/nova/physics/einstein-genius-among-geniuses.html Einstein: Genius Among Geniuses] - PBS's NOVA</ref> It is a meaningless, almost nonsensical, statement that purports to relate all [[matter]] to [[light]].  In fact, no [[theory]] has successfully unified the [[law]]s governing [[mass]] (''i.e.'', [[gravity]]) with the laws governing light (''i.e.'', [[electromagnetism]]), and numerous attempts to derive '''E=mc&sup2;''' in general from first principles have failed. [[Politics|Political]] pressure, however, has since made it impossible for anyone pursuing an academic career in [[science]] to even question the validity of this nonsensical [[equation]]. Simply put, '''E=mc&sup2;''' is [[liberal claptrap]].

 

Israel featured this equation in a 1956 postage stamp, and Mexico featured it on a 1979 postage stamp.

[[Biblical Scientific Foreknowledge]] predicts that a unified theory of all the laws of physics is impossible, because light and matter were created at different times, in different ways, as described in the [[Book of Genesis]].

[[Biblical Scientific Foreknowledge]] predicts that a unified theory of all the laws of physics is impossible, because light and matter were created at different times, in different ways, as described in the [[Book of Genesis]].

Accurate measurements and detailed calculations allowed for verifying the theoretical values with an accuracy of ±0.5%. This was the first time a nucleus was artificially split, and thereby the first transmutation of elements using accelerated particles:

Accurate measurements and detailed calculations allowed for verifying the theoretical values with an accuracy of ±0.5%. This was the first time a nucleus was artificially split, and thereby the first transmutation of elements using accelerated particles:

Some claim that the best empirical verification of '''E=mc²''' was done in 2005 by Simon Rainville et al., as published in ''[[Nature (journal)|Nature]]'' (which is a prestigious science journal).<ref>[http://www.nature.com/nature/journal/v438/n7071/full/4381096a.html Nature 438, 1096-1097 (22 December 2005)] doi:10.1038/4381096a; Published online 21 December 2005</ref>  The authors state in their article in ''Nature'' magazine that &quot;Einstein's relationship is separately confirmed in two tests, which yield a combined result of 1−Δmc²/E=(−1.4±4.4)×10⁻⁷, indicating that it holds to a level of at least 0.00004%. To our knowledge, this is the most precise direct test of the famous equation yet described.&quot;

Some claim that the best empirical verification of '''E=mc²''' was done in 2005 by Simon Rainville et al., as published in ''[[Nature (journal)|Nature]]'' (which is not a leading physics journal).<ref>[http://www.nature.com/nature/journal/v438/n7071/full/4381096a.html Nature 438, 1096-1097 (22 December 2005)] doi:10.1038/4381096a; Published online 21 December 2005</ref>  The authors state in their article in ''Nature'' magazine that &quot;Einstein's relationship is separately confirmed in two tests, which yield a combined result of 1−Δmc²/E=(−1.4±4.4)×10⁻⁷, indicating that it holds to a level of at least 0.00004%. To our knowledge, this is the most precise direct test of the famous equation yet described.&quot;

==A Famous Example -- Nuclear Fission of Uranium==

==A Famous Example -- Nuclear Fission of Uranium==

Radium-226 decays into Radon-222 by emission of an alpha particle with an energy of 4.78 MeV.

Radium-226 decays into Radon-222 by emission of an alpha particle with an energy of 4.78 MeV.

1 kg of Radium-226 = <math>\frac{6.022 \times 10^{26}}{226.0254}</math> atoms.  (The numerator is [[Avogadro's number]] times the 1,000 grams in one kg, and the denominator is the atomic weight of Radium-226.)  This is 2.6643647 * 10²⁴ atoms.

1 kg of Radium-226 = <math>\frac{6.022 \times 10^{23}}{226.0254}</math> atoms.  (The numerator is [[Avogadro's number]], and the denominator is the atomic weight of Radium-226.)  This is 2.6643647 * 10²⁴ atoms.

That number of Radon-222 atoms has mass .98226836 kg.  That number of alpha particles has mass .01770863 kg.

That number of Radon-222 atoms has mass .98226836 kg.  That number of alpha particles has mass .01770863 kg.

Also, Radon-222 decays into Polonium-218 by emission of an alpha particle with an energy of 5.49 MeV.

Also, Radon-222 decays into Polonium-218 by emission of an alpha particle with an energy of 5.49 MeV.

1 kg of Radon-222 = <math>\frac{6.022 \times 10^{26}}{222.0176}</math> atoms.  This is 2.7124611 * 10²⁴ atoms.

1 kg of Radon-222 = <math>\frac{6.022 \times 10^{23}}{222.0176}</math> atoms.  This is 2.7124611 * 10²⁴ atoms.

That number of Polonium-218 atoms has mass .98194467 kg.  That number of alpha particles has mass .01802830 kg.

That number of Polonium-218 atoms has mass .98194467 kg.  That number of alpha particles has mass .01802830 kg.