- published: 25 Jan 2011
- views: 5349
A crystal or crystalline solid is a solid material whose constituents, such as atoms, molecules or ions, are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations.
The scientific study of crystals and crystal formation is known as crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification. The word crystal is derived from the Ancient Greek word κρύσταλλος (krustallos), meaning both “ice” and “rock crystal”, from κρύος (kruos), "icy cold, frost".
Examples of large crystals include snowflakes, diamonds, and table salt. Most inorganic solids are not crystals but polycrystals, i.e. many microscopic crystals fused together into a single solid. Examples of polycrystals include most metals, rocks, ceramics, and ice. A third category of solids is amorphous solids, where the atoms have no periodic structure whatsoever. Examples of amorphous solids include glass, wax, and many plastics.
Sue or SUE may refer to:
Nancy Ann Grace (born October 23, 1959) is an American legal commentator, television host, television journalist, and former prosecutor. She frequently discusses issues from what she describes as a "victims' rights" standpoint, with an outspoken style that has brought her both praise and criticism. She is the host of Nancy Grace (2005–present), a nightly celebrity news and current affairs show on HLN, and she was the host of Court TV's Closing Arguments (1996–2007). She also co-wrote the book Objection!: How High-Priced Defense Attorneys, Celebrity Defendants, and a 24/7 Media Have Hijacked Our Criminal Justice System.
Grace was also the arbiter of Swift Justice with Nancy Grace in the syndicated courtroom reality show's first season. Due to the show relocating from Atlanta, Georgia (where Grace lives), she was replaced by former Clark County District Court Judge Jackie Glass. The show was not renewed for a new season under Glass.
Nancy Grace was born in Macon, Georgia, the youngest of three children, to factory worker Elizabeth Grace and Mac Grace, a freight agent for Southern Railway. Her older siblings are brother Mac Jr. and sister Ginny. The Graces are longtime members of Macon's Liberty United Methodist Church, where Elizabeth plays the organ and Mac Sr. was once a Sunday School teacher.