english: Well, we'll measure the amount of energy after the collision, compare it to the amount of energy before, and if there's less energy after the collision than before, this will be evidence that the energy has drifted away.
non_english: Zmeriame množstvo energie po kolízií, porovnáme ho s množstvom energie pred ňou, a keď bude po kolízii menej energie ako pred ňou, bude to dôkaz, že energia niekam unikla.