Heisenberg uncertainty principle Helium

Heisenberg uncertainty principle commutator of two operators, 49-50 particle in a box, 35 Helium atom... 

Although scientists of the time found Heisenberg s principle difficult to accept, it has been proven to describe the fundamental limitations on what can be observed. How important is the Heisenberg uncertainty principle The interaction of a photon with an object such as a helium-filled balloon has so little effect on the balloon that the uncertainty in its position is too small to measure. But that s not the case with an electron moving at 6 X 10 m/s near an atomic nucleus. The uncertainty in the electron s position is at least 10 m, about ten times greater than the diameter of the entire atom ... 

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