Generator
Generator may refer to:
Mathematics
Computing
Generator (category theory)
In category theory in mathematics a family of generators (or family of separators) of a category 
is a collection 
of objects, indexed by some set I, such that for any two morphisms 
in , if 
then there is some i∈I and morphism 
, such that the compositions 
. If the family consists of a single object G, we say it is a generator (or separator).
Generators are central to the definition of Grothendieck categories.
The dual concept is called a cogenerator or coseparator.
Examples
is a generator: If f and g are different, then there is an element 
, such that 
. Hence the map 
suffices.References
Generator (Foo Fighters song)
"Generator" is a Foo Fighters song, released as a single in 2000 from their third album There Is Nothing Left to Lose. The single was only released in Australia and also released as a limited edition single in Europe.
The song is particularly unique among the band's work because of Dave Grohl's implementation of the talk box in parts of the song. The usage of the device was partly inspired by Grohl's admiration of Peter Frampton and Joe Walsh, both of whom helped popularize it in the 1970s.
Track listing
Australian CD
(The EP also contains an enhanced segment containing exclusive documentary footage and photos)
European CD
(This version was available for only 1 week between March 6 and March 12, 2000, each CD was a limited, numbered edition and at the end of the week of release all remaining stock was deleted. As well as the music tracks it also included a multimedia 'enhanced' segment containing exclusive documentary footage and photos)
Sil (river)
The Sil is a river in León (Castile and León) and Galicia, Spain, a tributary of the Miño. Its total length is 225 kilometres (140 mi). The source of the Sil is in the Cantabrian Mountains in the Leonese town of Villablino. It flows through the provinces of León and Ourense. The largest city on the Sil is Ponferrada (León). The Sil flows into the Miño upstream from Ourense.
Mouth
The river joins the Miño river in Os Peares, in the province of Ourense.
Generally, the hierarchy between rivers is performed by taking into account which junction has more volume and length. In this case, as with the Esla and Pisuerga with the Duero, the Sil has flows larger than the Miño at the junction. There is a saying that goes, "The Miño has the fame, but the Sil gives it water" (in Spanish, El Miño lleva la fama y el Sil le da el agua). The Sil river also surpasses the Miño in length by about 20 kilometres (12 mi).
Course
The Sil runs through the León districts of Bahia, Laciana, El Bierzo and La Cabrera, and Ourense Valdeorras, among other locations across Villablino, Ponferrada, O Barco de Valdeorras, A Rúa, Quiroga and Ribas de Sil.
G♯ (musical note)
G♯ (G-sharp) or Sol Dièse is the ninth semitone of the solfege. In the German pitch nomenclature, it is known as "gis."
It lies a chromatic semitone above G and a diatonic semitone below A, thus being enharmonic to La Bémol or A♭ (A flat).
When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of the G♯ semitone is 415.305 Hz. See pitch (music) for a discussion of historical variations in frequency.
Designation by octave
Scales
Common scales beginning on G♯
G♯
G♯
G♯
Diatonic scales
G♯
D♯ E♯ F G♯
Jazz Melodic Minor
G♯
Jason Kottke
Jason Kottke (born September 27, 1973) is an American blogger and former web designer currently living in New York City. He designed the Silkscreen typeface and has won a Lifetime Achievement Award as a blogger.As of July 2013, his blog is ranked #66 overall and #20 in Science on the Technorati Top 100.
Web design
In 1999, Kottke designed the Silkscreen typeface — since used by Adobe, MTV, and Volvo, among others. His design work has been featured in The New Yorker, The New York Times, Forbes, and Brill's Content. Kottke also created the Gawker logo.
Blogging career
Kottke, a pioneering blogger, began his blog in March 1998.
In 2000, Kottke and his then-girlfriend (now wife) Meg Hourihan were profiled in a New Yorker article, "You've Got Blog", which introduced blogging to a wider audience. His contributions to blogging were acknowledged when he won a Bloggie Lifetime Achievement Award in 2003, after five years of blogging. After a year of soliciting payments from readers who enjoyed his blog, he stopped because he had not managed to attract enough readers or developed "a sufficient cult of personality" to support the subscription model.
Podcasts:
