Although the Citadel is equipped with mass-effect-generating element-zero cores, most of the gravity on the station is generated by the centrifugal force of rotation.

[…] from the hilltop were to be seen no cluttered barren lots sodden with spring rain and churned and torn by hoof of horse and cattle, no piles of winter ashes and rusting tin cans, no dingy hoardings covered with the tattered insanities of posted salacities and advertisements.

The hay is pressed from the bottom upwards, by the chains winding on the cone and drawing up the fallower. When the bale is secured, there is an arrangement for throwing out of gear, and the fallower drops with its own weight, and in the same manner is repeated.

[…] got in on the act himself, firing in an unstoppable shot that arced into the postage stamp top corner of Andy Goram's goal.