Propulsion

Propulsion is a means of creating force leading to movement. The term is derived from two Latin words: pro, meaning after or forward; and pellere, meaning to drive. A propulsion system consists of a source of mechanical power, and a propulsor (means of converting this power into propulsive force).

A technological system uses an engine or motor as the power source, and wheels and axles, propellers, or a propulsive nozzle to generate the force. Components such as clutches or gearboxes may be needed to connect the motor to axles, wheels, or propellors.

Biological propulsion systems use an animal's muscles as the power source, and limbs such as wings, fins or legs as the propulsors.

Vehicular propulsion

Air propulsion

An aircraft propulsion system generally consists of an aircraft engine and some means to generate thrust, such as a propeller or a propulsive nozzle.

An aircraft propulsion system must achieve two things. First, the thrust from the propulsion system must balance the drag of the airplane when the airplane is cruising. And second, the thrust from the propulsion system must exceed the drag of the airplane for the airplane to accelerate. In fact, the greater the difference between the thrust and the drag, called the excess thrust, the faster the airplane will accelerate.

615 Music

615 Music is a broadcast production music company based in Nashville, Tennessee. 615 Music composes television news music packages and custom image campaigns for many television networks around the world. 615 Music also operates out of Los Angeles. The name 615 Music comes from Nashville's Area Code (615), which is where the company is based.

The company composed the last three image campaigns for NBC's Today morning news/entertainment program: "Live for Today" (2005–2006), "It's a New Day" (2006–2007), and "Why I Love Today" (2008). The "Live for Today" theme was nominated for an Emmy. 615 Music also has a production music library.

The company, along with other composers of news music such as Gari Communications, have seen a surge in business since the third quarter of 2006. This is because licensing companies had raised the prices of licensing. In 2007, 615 Music signed a deal with Belo Corporation making them the exclusive provider of news music for the station group.

The company's music has also been licensed for use in movie trailers. Their track "Goth" was used in the domestic trailer for the critically acclaimed 2007 action film, Live Free or Die Hard.

Podcasts:

Propulsion

ALBUMS

Propulsion

developed with YouTube
PLAYLIST TIME:

Propulsion

by: Howe Gelb

in the moment it's the much too much.
in the present it's the touch.
shakeing from emotion.
shakeing from sheer propulsion.
it's the long lunge and it's the lurch.
the urge of the surge and the endless search.
a dull shine can emerse in emulsion.
propulsion
eleanor was only in it for roosevelt
she knows it felt sending all that motion across the
ocean.
living in the pulse of the sun.
up to my neck with emulsion.
propulsion.
systematic attack of devotion.




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