Heisenberg extended this idea to focus not on an uncontrollable variable but rather the indeterminac

Heisenberg extended this idea to focus not on an uncontrollable variable but rather the indeterminac

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Heisenberg extended this idea to focus not on an uncontrollable variable but rather the  indeterminacy of both in a reciprocal manner. That is, the more accurately we measure  one variable, the less accurately it will be possible to measure the other. The reason for  this is that the very act of measurement affects the particle's velocity (momentum and  velocity are affected the same way, since momentum is equal to velocity times mass).  To determine a particle's position, one must use light, and the use of light means the  addition of energy. The consequences of the uncertainty principle are vast. For one, it limits the notion of  causality. The hope of physics previously had been that if all forces were understood,  then the exact position and velocity of a particle could be determined for any given  moment in the future. However, such determinism was impossible if the exact 
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This note was uploaded on 12/26/2011 for the course HIST 101 taught by Professor Womer during the Fall '08 term at Texas State.

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