english: That the force that causes the apple to fall to the ground is the same force that causes the planets and the moon to move around, and so on? Everybody knows that. It's a property of gravitation.
non_english: Že tá sila, ktorá spôsobila pád jablka na zem, je tá istá sila, ktorá núti planéty a Mesiac, aby sa točili dokola, a tak ďalej? Každý to vie. Je to vlastnosť gravitácie.