Transmitter

In electronics and telecommunications a transmitter or radio transmitter is an electronic device which, with the aid of an antenna, produces radio waves. The transmitter itself generates a radio frequency alternating current, which is applied to the antenna. When excited by this alternating current, the antenna radiates radio waves. In addition to their use in broadcasting, transmitters are necessary component parts of many electronic devices that communicate by radio, such as cell phones, wireless computer networks, Bluetooth enabled devices, garage door openers, two-way radios in aircraft, ships, spacecraft, radar sets and navigational beacons. The term transmitter is usually limited to equipment that generates radio waves for communication purposes; or radiolocation, such as radar and navigational transmitters. Generators of radio waves for heating or industrial purposes, such as microwave ovens or diathermy equipment, are not usually called transmitters even though they often have similar circuits.

Transmitter (album)

Initial release by Spiraling. Reviewed on CD Baby as "the best new pop record I have heard in years. Spiraling plays high-energy, rocking pop songs with delicious vocals and awesome lyrics that are damn near impossible not to sing along to."

Personnel

Track listing

Submarine sandwich

A submarine sandwich, also known as a sub, wedge, hoagie, hero, grinder, or one of the many regional naming variations, is a type of sandwich that consists of a long roll of bread split widthwise into two pieces, and filled with a variety of meats, cheeses, vegetables, seasonings, and sauces. The sandwich has no standardized name, and many U.S. regions have their own names for it; one study found 13 different names for the sandwich in the United States. The usage of the several terms varies regionally but not in any pattern, as they have been used variously by the people and enterprises who make and sell them. The terms submarine and sub are widespread and not assignable to any certain region, though many of the localized terms are clustered in the northeastern United States.

History and etymology

The sandwich originated in several different Italian American communities in the Northeastern United States from the late 19th to mid-20th centuries. Portland, Maine claims to be the birthplace of the "Italian sandwich" and it is considered Maine's signature sandwich. The popularity of this Italian-American cuisine has grown from its origins in Connecticut, Pennsylvania, Delaware, New York, New Jersey, and Massachusetts to most parts of the United States, Canada, and with the advent of chain restaurants, is now available in many parts of the world.

Wedge prism

The wedge prism is a prism with a shallow angle between its input and output surfaces. This angle is usually 3 degrees or less. Refraction at the surfaces causes the prism to deflect light by a fixed angle. When viewing a scene through such a prism, objects will appear to be offset by an amount that varies with their distance from the prism.

Deflection angle

For a wedge prism in air, rays of light passing through the prism are deflected by the angle δ, which is approximately given by

where n is the index of refraction of the prism material, and α is the angle between the prism's surfaces.

Applications

The term "optical wedge" refers to any shallow angle between two plane surfaces of a window. This wedge may range from a few millionths of a degree of perfect parallelism to as much as three degrees of angle. Even though high-precision optics, such as optical flats, may be lapped and polished to extremely high levels of parallelism, nearly all optics with parallel faces have some slight wedge. This margin of error is usually listed in minutes or seconds of arc. Windows manufactured with an intentional wedge are often referred to as wedge prisms, and typically come with wedge angles of one, two, or three degrees. Many applications exist for wedge prisms, including laser-beam steering, rangefinding and variable focusing.

Accretionary wedge

An accretionary wedge or accretionary prism is formed from sediments that are accreted onto the non-subducting tectonic plate at a convergent plate boundary. Most of the material in the accretionary wedge consists of marine sediments scraped off from the downgoing slab of oceanic crust but in some cases includes the erosional products of volcanic island arcs formed on the overriding plate.

Materials within an accretionary wedge

Accretionary wedges and accreted terranes are not equivalent to tectonic plates, but rather are associated with tectonic plates and accrete as a result of tectonic collision. Materials incorporated in accretionary wedges include:

Bass note

In music theory, the bass note of a chord or sonority is the lowest note played or notated. If there are multiple voices it is the note played or notated in the lowest voice. (the note furthest in the bass) While the bass note is often the root or fundamental of the chord, it does not have to be, and sometimes one of the other pitches of the chord will be found in the bass. See: inversion (music).

In pre-tonal theory (Early music), root notes were not considered and thus the bass was the most defining note of a sonority. See: thoroughbass. In pandiatonic chords the bass often does not determine the chord, as is always the case with a nonharmonic bass.

Miami bass

Miami bass (booty music or booty bass) is a subgenre of hip hop music that became popular in the 1980s and 1990s. Its roots are directly linked to the electro-funk sound of the early 1980s.

The use of the Roland TR-808 sustained kick drum, raised dance tempos, and frequently sexually explicit lyrical content differentiate it from other hip hop subgenres. Music author Richie Unterberger has characterized Miami bass as using rhythms with a "stop start flavor" and "hissy" cymbals with lyrics that "reflected the language of the streets, particularly Miami's historically black neighborhoods such as Liberty City and Overtown".

Miami bass has never found consistent mainstream acceptance, though it has had a profound impact on the development of Baltimore club, West Coast hip hop, funk carioca, and other genres.

History

1980s

During the 1980s, the focus of Miami bass tended to be on DJs and record producers, rather than individual performers. Record labels such as Pandisc, HOT Records, 4-Sight Records and Skyywalker Records released much material of the genre. Unterberger has referred to James (Maggotron) McCauley (also known as DXJ, Maggozulu 2, Planet Detroit and Bass Master Khan) as the "father of Miami bass", a distinction McCauley himself denies, choosing rather to confer that status on producer Amos Larkins.