[Foobarz]

Yeah, I really don't understand why the right hand side of the Heisenberg equation is h/4pi (h is regular Planck's constant). How come this equation only applies to small objects like electrons and not large objects like a human? Is this related to the de Broglie equation that shows how macroscopic objects have negligible wavelengths (since the really small Planck's constant divided by a high mass and high velocity equals a very very small wavelength)?

[Borek]

How come this equation only applies to small objects like electrons and not large objects like a human? Is this related to the de Broglie equation that shows how macroscopic objects have negligible wavelengths (since the really small Planck's constant divided by a high mass and high velocity equals a very very small wavelength)?

Yes. Heisenberg uncertainty principle applies to all objects, but the larger the object is, the less important it is.