I have never understood what was the propelling force behind this."

The propelling force of fear sent me up the slick scarp as if I were a fly.

He had leaped with the propelling force of his corded leg muscles.

The evolution of the propelling force is as follows:

The propelling force is a charge of seven ounces of smokeless powder.

The result is a directional optical propelling force.

The soul is a piece of pure All-Source, a propelling force which forces man to evolution.

"The decisive factor is our propelling force.

Then Old Well-Well arose as if pushed from his seat by some strong propelling force.

Samuel Floyd states that blues were both the bedrock and propelling force of bebop, bringing about three main developments:

The pushing force, acting mainly near the cable inlet, combined with the airflow propelling forces, increasing the maximum jetting distance considerably.

The interlocking counterpoint of the timbale bell and bongo bell provides a propelling force during the montuno.

Because of the expanding airflow, the air propelling forces are relatively small at the cable inlet and large at the air exhaust end of the duct.

But nobody knows a vehicle the way an owner does, and the players dedicated to this rusty, still powerful form understand its problems as well as its propelling force.

The propelling force for change is Achille Occhetto, party secretary for the last two years, who saw the writing on the Berlin Wall last November.

It was a Connecticut story and an appealing topic, the propelling force which led to further research and the curator David Herlihy, a renowned bicycle historian."

Gold was the propelling force in New South Wales and Western Australia, British Columbia, and the Yukon.

In this model, the string is assumed massless and the rotational motion frictionless, so no propelling force is needed to keep the ball in circular motion.

The Voiture Lumiere is used to capture solar wind with its light particles and convert it into a propelling force, allowing the mobile suit to accelerate indefinitely.

But as soon as the front cart had passed beyond the non-conductive layer, the electromagnetic current was broken, and the train decelerated fast as the propelling force went dead.

The Shadow's knees, rather than his arms, added the propelling force that rolled him inward, where he landed with only a slight jar on the floor of Albury's studio.

This much I knew of him; but of this marvelous machine of his, of the secrets of its construction and propelling force, what did I really know?

Furthermore, New York City makes possession of any pistol or rifle or similar instrument in which the propelling force is a spring or air unlawful without a license.

Last, but not least, we should not forget about the propelling force of any development, namely education and the position it should hold in the revised version of the Lisbon Strategy.

It moves forward steadily, but not by holding suspense over our heads; rather, the single propelling force in this novel is the passage of time and the corresponding aging of the central character.