Nibley is old and alcoholic. But it can still be useful. He is a calculator. And he is able in his mind to determine the trajectory of the movement of bodies. From the orbits of planets and asteroids to the movement of people and objects. He will make his final calculation to save the earthlings' base on Jupiter ...

(. Ray Douglas Bradbury; 22 1920 , , 5 2012 , -) , "451 ", " " " ".