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→Reasons to restore the version of Feb 10, 2010: always proof-read!
::::Perhaps Mr. Schlafly would be comfortable with the original interpretation (which I'll write slightly differently to make my point):
::::Perhaps Mr. Schlafly would be comfortable with the original interpretation (which I'll write slightly differently to make my point):
::::<math>\Delta m = \frac{\Delta E}{c^2}</math>
::::<math>\Delta m = \frac{\Delta E}{c^2}</math>
::::which states only that a system's mass will change by a small amount when it releases or absorbs energy. It's still E=mc<sup>2</sup>; the difference is the definition of m and E. For example, it describes the rather difficult-to-ignore fact that a &sup4;He nucleus weighs less than the two deuterons from which it was formed. This concept is easier to prove than the more general statement of mass-energy equivalence. [[User:Spielman|Spielman]] 13:06, 11 February 2013 (EST)
::::which states only that a system's mass will change by a small amount when it releases or absorbs energy. It's still E=mc<sup>2</sup>; the difference is the definition of m and E. For example, it describes the rather difficult-to-ignore fact that a <sup>4</sup>He nucleus weighs less than the two deuterons from which it was formed. This concept is easier to prove than the more general statement of mass-energy equivalence. [[User:Spielman|Spielman]] 13:06, 11 February 2013 (EST)