english: So this says that it's impossible, by definition, to measure exactly the state -- i.e., the position -- and the momentum of a particle, because the act of measuring it, by definition, changes it.
non_english: Hovorí to, že je nemožné, z definície, presne zmerať stav, resp. polohu a hybnosť častice, lebo akt merania ich, z definície, mení.