B - Used Product Index

Polarity - The polarity of an object is, in general, its physical alignment. The term is often used to describe the positive and negative ends of batteries and magnets.

In cell biology, polarity ref. Used Audio. ers to cells not being point-symmetrical in their spatial organization. This is particularly evident for cells organized in single cell layers that separate organs or subcompartments in . Used Audio. organisms.

In chemistry, molecular polarity refers to the dipole-dipole intermolecular forces between the slightly positive end of one molecule to the negative end of another or the same molecule. Mole...

Acoustics - Acoustics is a branch of physics and is the study of sound, mechanical waves in gases, liquids, and solids. A scientist who works in the field of acoustics is an acoustician. The application of acoust. Used Audio. ics in technology is called acoustical engineering. There is often much overlap and interaction between the interests of acousticians and acoustical engineers.

"... acoustic. Used Audio. s is characterized by its reliance on combinations of physical principles drawn from other sources; and that the primary task of modern physical acoustics is to effect a fusion of the principles normally adhering t...

Mount Speakers - A speaker designed to be mounted on or in a wall or on a stand.. Used Audio. . Used Audio. ...

Alternating Current - An alternating current (AC) is an electrical current where the magnitude and direction of the current varies cyclically, as opposed to direct current, where the direction of the current stays constan. Used Audio. t. The usual waveform of an AC power circuit is a sine wave, as this results in the most efficient transmission of energy. However in certain applications different waveforms are used, s. Used Audio. uch as triangular or square waves.

Used generically, AC refers to the form in which electricity is delivered to businesses and residences. However, audio and radio signals carried on electrical wire ar

Microphones - A microphone is a device that converts sound waves into an electrical signal. There are many different kinds of microphones, including carbon, condenser, dynamic, and ribbon microphones, all of which . Used Audio. have serve specific needs in recording and audio production. . Used Audio. ...