12-hour clock

The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods:a.m. (from the Latin ante meridiem, meaning "before midday") and p.m. (post meridiem, "after midday"). Each period consists of 12 hours numbered: 12 (acting as zero),1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11. The 24 hour/day cycle starts at 12 midnight (often indicated as 12 a.m.), runs through 12 noon (often indicated as 12 p.m.), and continues to the midnight at the end of the day.

The 12-hour clock was developed over time from the mid-second millennium BC to the 16th century AD.

History and use

The natural day/night division of a calendar day forms the fundamental basis as to why each day is split into two cycles. Originally these were one cycle which could be tracked by the position of the Sun (day) followed by one cycle which could be tracked by the Moon and stars (night). This would eventually evolve into the two 12-hour periods that started at midnight (a.m.) and noon (p.m.) which are used today. Noon itself is rarely abbreviated today, but if it is, it is denoted M.

From Hell

From Hell is a graphic novel by writer Alan Moore and artist Eddie Campbell, originally published in serial form from 1989 to 1996 and collected in 1999, speculating upon the identity and motives of Jack the Ripper. The title is taken from the first words of the "From Hell" letter, which some authorities believe was an authentic message sent from the killer in 1888. The collected edition is 572 pages long. The 2000 and later editions are the most common prints. The comic was loosely adapted into a film of the same title, released in 2001.

About the book

From Hell was originally serialized as one of several features in Taboo, an anthology comic book published by Steve Bissette's Spiderbaby Grafix. After running in Taboo #2–7 (1989–1992), Moore and Campbell moved the project to its own series, published first by Tundra Publishing, then by Kitchen Sink Press. The series was published in ten volumes between 1991 and 1996, and an appendix, From Hell: The Dance of the Gull-catchers, was published in 1998. The entire series was collected in a trade paperback and published by Eddie Campbell Comics in 1999; trade paperback and hardcover versions are now published by Top Shelf Productions in the USA and Knockabout Comics in the UK.

Two Steps from Hell

Two Steps from Hell is an American production music company based in Los Angeles, California, founded by Thomas J. Bergersen and Nick Phoenix in 2006. The company focuses predominantly on movie and trailer music, and has supplied tracks to films such as Harry Potter, Pirates of the Caribbean, and X-Men.

History

Two Steps from Hell was founded in 2006 when Thomas Bergersen and Nick Phoenix joined forces to write original music for movie trailers. Bergersen moved from Trondheim, Norway to the United States in 2003, along with Phoenix, who began composing in 1997, before moving to Los Angeles. The two formed the company in early 2006, and have composed music for over 1,000 major motion picture trailers.

Founding and initial success (2006-10)

Two Steps from Hell mainly produces trailer music, although recently it has also been used for television shows and selected video games.

Despite the company finding success for its music, the tracks were never officially released to the public until the May 2010 release of the commercial album Invincible. In addition to approaching Gold record status, Invincible became the first of several such albums to chart in the iTunes Top 100 Soundtracks. As of July 2014, Two Steps from Hell has published 8 public albums in addition to 20 demonstration albums, with almost 1,000 unique tracks in total.

Platinum group

The platinum-group metals (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs)) are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6).

The six platinum-group metals are ruthenium, rhodium, palladium, osmium, iridium, and platinum. They have similar physical and chemical properties, and tend to occur together in the same mineral deposits. However they can be further subdivided into the iridium-group platinum-group elements (IPGEs: Os, Ir, Ru) and the palladium-group platinum-group elements (PPGEs: Rh, Pt, Pd) based on their behaviour in geological systems.

The three elements above the platinum group in the traditional periodic table (iron, nickel and cobalt) are all ferromagnetic, these being the only known transition metals with this property.

Music

Music is an art form and cultural activity whose medium is sound and silence. The common elements of music are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics (loudness and softness), and the sonic qualities of timbre and texture (which are sometimes termed the "color" of a musical sound). Different styles or types of music may emphasize, de-emphasize or omit some of these elements. Music is performed with a vast range of instruments and with vocal techniques ranging from singing to rapping, and there are solely instrumental pieces, solely vocal pieces and pieces that combine singing and instruments. The word derives from Greek μουσική (mousike; "art of the Muses"). In its most general form, the activities describing music as an art form include the production of works of music (songs, tunes, symphonies, and so on), the criticism of music, the study of the history of music, and the aesthetic examination of music. Ancient Greek and Indian philosophers defined music as tones ordered horizontally as melodies and vertically as harmonies. Common sayings such as "the harmony of the spheres" and "it is music to my ears" point to the notion that music is often ordered and pleasant to listen to. However, 20th-century composer John Cage thought that any sound can be music, saying, for example, "There is no noise, only sound."