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aerodynamics

(Encyclopedia)aerodynamics, study of gases in motion. As the principal application of aerodynamics is the design of aircraft, air is the gas with which the science is most concerned. Although aerodynamics is primar...

reflection

(Encyclopedia)CE5 Image formation by curved mirrors and lenses reflection, return of a wave from a surface that it strikes into the medium through which it has traveled. The general principles governing the ref...

Etruscan civilization

(Encyclopedia)Etruscan civilization, highest civilization in Italy before the rise of Rome. The core of the territory of the Etruscans, known as Etruria to the Latins, was northwest of the Tiber River, now in moder...

industrial management

(Encyclopedia)industrial management, term applied to highly organized modern methods of carrying on industrial, especially manufacturing, operations. Modern technological devices, particularly in the areas of com...

marketing

(Encyclopedia)marketing, in economics, that part of the process of production and exchange that is concerned with the flow of goods and services from producer to consumer. In popular usage it is defined as the dist...

jet propulsion

(Encyclopedia)CE5 Types of jet engines: In the propeller-driven turbine a stream of high-velocity gases provides the power to drive the turbine and turn the propeller. In the jet-driven turbine the stream of gas...

Atlanta

(Encyclopedia)Atlanta ətlănˈtə, ăt– [key], city (2020 pop. 498,715), state capital and seat of Fulton co., NW Ga., on the Chattahoochee R. and Peachtree Creek, near the Appalachi...

machine

(Encyclopedia)machine, arrangement of moving and stationary mechanical parts used to perform some useful work or to provide transportation. From a historical perspective, many of the first machines were the result ...

strike

(Encyclopedia)strike, concentrated work stoppage by a group of employees, the chief weapon of organized labor. A suspension of work on the employer's part is called a lockout. Strikes usually result from conflicts ...

Brittany

(Encyclopedia)Brittany brĭtˈənē [key], Breton Breiz, Fr. Bretagne, region and former province, NW France. It is a peninsula between the English Channel (N) and the Bay of Biscay (S) and comprises four departmen...