Opal
Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike crystalline forms of silica, which are classed as minerals. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. Opal is the national gemstone of Australia.
The internal structure of precious opal makes it diffract light; depending on the conditions in which it formed, it can take on many colors. Precious opal ranges from clear through white, gray, red, orange, yellow, green, blue, magenta, rose, pink, slate, olive, brown, and black. Of these hues, the black opals are the most rare, whereas white and greens are the most common. It varies in optical density from opaque to semitransparent.
Precious opal
Precious opal shows a variable interplay of internal colors, and though it is a mineraloid, it has an internal structure. At microscopic scales, precious opal is composed of silica spheres some 150 to 300 nm in diameter in a hexagonal or cubic close-packed lattice. It was shown by J. V. Sanders in the mid-1960s, that these ordered silica spheres produce the internal colors by causing the interference and diffraction of light passing through the microstructure of the opal. The regularity of the sizes and the packing of these spheres determines the quality of precious opal. Where the distance between the regularly packed planes of spheres is around half the wavelength of a component of visible light, the light of that wavelength may be subject to diffraction from the grating created by the stacked planes. The colors that are observed are determined by the spacing between the planes and the orientation of planes with respect to the incident light. The process can be described by Bragg's law of diffraction.
Opal (armoured personnel carrier)
The Opal-I is a multi-purpose fully amphibious armoured personnel carrier developed and produced by HSW S.A.. APC is a development of MT-LB that was produced in HSW on licence. Major changes are with reworked nose section and propellers for better in water speed and manoeuvrability, new turret with 12.7 mm NSVT machine-gun instead of old with 7.62 PKT and powered-up engine. Opal-II is a stretched variant with longer chassis with 7 road wheels on each side, like the 2S1 and MT-LBu and 300 hp (220 kW) SW680T engine.
Variants
WPT Mors
(WPT for Wóz Pogotowia Technicznego - lit Technical Support Vehicle) - technical support vehicle with light crane, hydraulic dozerblade, welding equipment and an NBC detection system. The vehicle is a basic support vehicle of mechanized battalions equipped with BMP-1 IFV in Polish Land Forces.
TRI Hors
(TRI for Transporter Rozpoznania Inżynieryjnego - lit. Engineering Reconnaissance Vehicle) - engineering vehicle with basic equipment. In use with Polish Land Forces.
Year Zero (game)
Year Zero is an alternate reality game (ARG) based on the Nine Inch Nails concept album of the same name, its expected follow-up, and a possible accompanying film or television project. Although the album was released on April 16, 2007 in Europe, and the following day worldwide, the game has been underway since roughly February 12, 2007 and was expected to continue for approximately eighteen months. The game was created by 42 Entertainment, the same group responsible for the Halo 2 promotional alternative reality game I Love Bees.Trent Reznor, frontman and sole member of the band, has called the game "a new entertainment form". In response to criticism regarding the promotion of the album, Reznor stated:
Premise
Reznor said that Year Zero is a concept album, "could be about the end of the world", and marked a "shift in direction" in that it "doesn't sound like With Teeth." The 2006 tour merchandise designs featured overt references to the United States military, which "reflects future directions."
Lullaby (disambiguation)
A lullaby or lullabye is a soothing song, sung most often to children before sleep.
Lullaby or lullabye may also refer to:
Film and television
Literature
Music
Classical compositions
Ed Di Lello
Ed Di Lello (born 1952) is a former American composer, choreographer, director, dancer, and actor who worked in the United States during the 1970s and 1980s. He was born in New York City to Vincent and Angela (née Salvatore). He received a bachelor's degree from Sarah Lawrence College in 1974. He is currently a Vice President at JP Morgan Chase Bank.
Early Work
In 1967-1970 Di Lello studied and performed with the Everyman Company and the Chalk Circle Players in Brooklyn, NY, under the tutelage of actress Geraldine Fitzgerald and Bro. Jonathan Ringkamp. In February 1970, the Chalk Circle Players premiered Pieces, a “collage theater” work composed of segments, in which Di Lello wrote, directed and choreographed Mommy/Daddy, played the title role in St. Francis, and composed and performed the songs Pieces, Runnin' Away, Tickle My Soul and Hey Who Are You?.
From 1971 to 1973 Di Lello was a member of the La Mama ETC company, under the direction of Wilford Leach and John Braswel, in which he performed featured roles in Demon (The Damask Drum) and Carmilla. In May 1972 Di Lello directed a production of Next by Terrence McNally which featured Alan Blumenfeld and Gina Barnett.
Podcasts:
