Bypass ratio the velocity of a very large volume and consequently mass of air produces a very large change in momentum and thrust: thrust is the engine's mass flow (the amount of air flowing through the engine) multiplied by the difference between the inlet and exhaust velocities in—a linear relationship—but the kinetic energy of the exhaust is the mass flow multiplied by one-half the square of the difference in velocities. A low disc loading (thrust per disc area) increases the aircraft's energy efficiency, and this reduces the fuel use. The Rolls–Royce Conway turbofan engine, developed in the early 1950s, was an early
Mercy Multiplied Henry Cloud and John Townsend and "The Battlefield of the Mind" by Joyce Meyer. In addition to individual and group counseling, other aspects of the Mercy Multiplied program include praise and worship, bible reading, listening to sermons and Christian teachings (both during scheduled class times as well as for prescribed counseling homework), cooking, cleaning and recreational time. During class time, residents are taught from preachers such as Beth Moore, Priscilla Shirer, Jordan Rubin, Joyce Meyer, Andy Stanley, Louie Giglio and Dave Ramsey. The Mercy Multiplied website states that they also facilitate "life-skills training", "nutritional care" and "financial management instruction". Since