couple
Two equal and opposite parallel forces, with different lines of action, tending to produce rotation of a body; their moment […]
A permanent, overhead, theater stage rigging system; used to raise or lower scenery or lighting equipment which is counterbalanced by
A window having sashes, each of which is counterbalanced with a weight.
A movable frame in which are stacked the modular counterweights of a counterweight system.
1. A weight that just balances another weight. 2. In a theater stagehouse, a weight (usually of iron, sand, or
1. A wall of a building that is adjacent to, but separated from, the end wall of a building; party