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Heisenberg's Uncertainty Principle: The Limits of Knowing

A buzzing fly can cross your view before you work out where it is going. A bouncing ball is easier to follow, but its position and movement can still be difficult to judge at every instant. Now imagine trying to track an electron, far smaller than a speck of dust. This leads to a central question: are there limits to how precisely we can know a particle’s properties?

Heisenberg's Uncertainty Principle: The Limits of Knowing

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