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hardcybermaster -> RE: E does NOT equal M C squared! (5/3/2012 4:29:29 PM)
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quote:
ORIGINAL: Kirata Unrelated to Biblical Scientific Foreknowledge (it hurts just to type that) but not to the topic of Einstein's mass-energy relation...What's wrong with E = mc^2? Well, to put it bluntly, there is no such thing as a mass-energy relation. What does exist is a mass-energy-momentum relation. The equation Einstein came up with more than a century ago can be considered a degenerate form of the mass-energy-momentum relation for vanishing momentum. Einstein was very well aware of this, and in later papers repetitively stressed that his mass-energy equation is strictly limited to observers co-moving with the object under study. However, very, very few people seem to have paid attention to Einstein's warnings, nor to any of the more recent warnings. Even worse, the vast majority of authors of popular science books take great liberty in applying E=mc2 to objects moving at speeds close to the speed of light, and then declare mass to increase with velocity in an attempt to recover consistency in what has become an incoherent mix of relativistic and Newtonian dynamics. Theoretical physicist Lev Okun refers to this practice as a “pedagogical virus”. It's a fascinating article. K. so is Lev Okun right?
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