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A ducted propeller, also known as a Kort nozzle, is a marine propeller fitted with a non-rotating nozzle. It is used to improve the efficiency of the propeller and is especially used on heavily loaded propellers or propellers with limited diameter. It was developed first by Luigi Stipa (1931) and later by Ludwig Kort (1934). The Kort nozzle is ...
Background music (British English: piped music) is a mode of musical performance in which the music is not intended to be a primary focus of potential listeners, but its content, character, and volume level are deliberately chosen to affect behavioral and emotional responses in humans such as concentration, relaxation, distraction, and excitement.
In aeronautics, a ducted fan is a thrust-generating mechanical fan or propeller mounted within a cylindrical duct or shroud. Other terms include ducted propeller or shrouded propeller . [ 1 ] When used in vertical takeoff and landing ( VTOL ) applications it is also known as a shrouded rotor .
A rim-driven thruster integrates an electric motor into a ducted propeller. The cylindrical duct acts as the stator, while the tips of the blades act as the rotor. They typically provide high torque and operate at low RPMs, producing less noise. The system does not require a shaft, reducing weight.
Describing it as an "eloquent compromise", Duncan Wingham told the Commons Science and Technology Committee, "The controversy over the naming of a new polar research vessel was an 'astoundingly good outcome for public interest in science '", and "the row had 'put a smile' on people's faces" after attracting huge public interest.
Simon Vouet, Saint Cecilia, c. 1626. Research into music and emotion seeks to understand the psychological relationship between human affect and music.The field, a branch of music psychology, covers numerous areas of study, including the nature of emotional reactions to music, how characteristics of the listener may determine which emotions are felt, and which components of a musical ...
The term can also be used for kinds of easy listening, [7] lounge, piano solo, jazz or middle of the road music, or what are known as "beautiful music" radio stations.. This style of music is sometimes used to comedic effect in mass media such as film, where intense or dramatic scenes may be interrupted or interspersed with such anodyne music while characters use an elevator.
Adaptive music is music which changes in response to real-time events or user interactions, found most commonly in video games. [1] It may change in volume, arrangement , tempo , and more. Adaptive music is a staple within the role-playing game genre, often being used to change the tone and intensity of music when the player enters and leaves ...