Can someone explain the Heisenberg Uncertainty Principle?

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    Quantum Uncertainty
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SUMMARY

The Heisenberg Uncertainty Principle asserts that it is impossible to simultaneously know both the position and momentum of a subatomic particle with absolute precision. This principle highlights an inherent limitation in quantum mechanics, where the act of measurement itself disturbs the particle's state. Specifically, there exists an inverse relationship between the accuracy of measuring a particle's position and its momentum, meaning that increasing precision in one leads to greater uncertainty in the other. This phenomenon is not merely a technical limitation but reflects the fundamental nature of particles in quantum physics.

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spacecadet11
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Hello...sorry about the vague nature of the question..but I am trying to learn in an 'economical' sort of way. That is asking almost redundant questions..but answers I can work with in a 'free style' way...and gain understanding in the process or be able to ask another question.

Can someone explain to me what the principal says? I know you are not supposed to be able to determine both the position and the momentum of a particle at the same time on the sub-atomic level. The act of measurement disturbs the result..apparently. A particle I am guessing can not have both at 'the same time'. Does the fact that there is no such thing as an 'instant' or 'frozen' period of time explain why you can not pin down 'both' pieces of info?

Bye
P.
 
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Welcome to PF!

Essentially, the Heisenberg Uncertainty Principle states that (a) you can never fully determine a particular property of a particle, and (b) there is an inverse relationship between your knowledge of a particle's position and momentum (or any two opposing features).

Keep in mind that this is not just a technical limitation - a particle literally does not have a definite position or momentum. Also, you should read this.
 

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