A turbine is a rotary engine that extracts energy from a fluid flow. The simplest turbines have one moving part, a rotor assembly, which is a shaft with blades attached. Moving fluid acts on the blades (or the blades react to the flow), so that they rotate and impart energy to the rotor. Gas, steam, and water turbines have a casing around the blades that contains and controls the working fluid. Examples of early turbine are windmills and water wheels.
Turbines are often part of a larger machine. Nearly all of the electrical power humans generate and consume is produced with a turbine of some type. Most jet engines rely on turbines to supply mechanical work from their working fluid and fuel, as do all nuclear ships and power plants.
From a Unification perspective, a number of points can be made:
- Turbine technology has been playing an important part in modern civilization, bringing people more benefits in life. It thus contributes to the advancement of human civilization and in the overall goal of building one family of humanity under God.
- The external structure and operation of a turbine is based on invisible, internal physical principles. Thus, for any object to function properly, its internal and external aspects need to work together in harmony.
- Human talents and abilities to design and construct turbines for different purposes are manifestations of the gifts of higher intelligence, creativity, and responsible action that God has endowed people with. These attributes are linked to humanity's spiritual nature and set Homo sapiens apart from all other known species on Earth. In addition, these attributes reflect humankind's inheritance of God's intelligence, ingenuity, and creativity.
- Humam efforts to design, construct, and use turbines have helped us not only in practical terms but also to fulfill our inner drive to have dominion over the natural world. Unification Thought expresses this in terms of fulfilling God's Third Great Blessing to humanity, which is to exert efforts to understand, harmonize with, and gain dominion (stewardship) of true love over the environment.
- The usefulness of turbines indicates that they serve the larger purpose, or the "purpose of the whole." From a Unification perspective, they provide an insight for one's own spiritual growth: To live for the sake of others. By practicing this principle, people transcend the level of mere survival and travel the path toward inheriting God's nature. Eventually, people can vibrate with God's spirit and become channels for God's love to flow through them to others and to the rest of creation. In this manner, humanity can fulfill God's "Three Great Blessings" and establish a world of peace and harmony.