Talk:mass energy

mass-energy

 * Shouldn't this be mass-energy, not mass energy? I have always seen it spelled with a hyphen not a space.  I think the difference is "mass energy" i.e. mass used adjectivally describing a type of energy (which we see as mass) as opposed to the unified concept of "mass-energy" i.e. being neither mass nor energy but both (in physics both concepts are just different manifestations of the same thing, mass-energy). Nicoleta 14:03, 7 July 2010 (UTC)
 * I believe that it is only hyphenated when used attributively (as an adjective) in such terms as mass-energy equivalence:. SemperBlotto 14:07, 7 July 2010 (UTC)