Equipoise (noun)

1. A state of balance or equality of opposing forces or influences.
2. An equal distribution of weight, especially on opposite sides of a central axis.

Origin:

Late latin aequilibritas, from latin aequus 'equal' + libra 'balance'.

Examples:

1. The crane's design relied on the equipoise of its two arms to lift heavy loads.
2. The room was filled with an equipoise of warm and cool colors, creating a harmonious atmosphere.
3. The politician's proposal sought to achieve equipoise between economic growth and environmental protection.
4. The tightrope walker maintained his equipoise by shifting his weight from one foot to the other.
5. The equipoise of power between the two political parties has kept the government in a state of gridlock.