Cagnò

Cagnò (Ladin: Cignòu, German: Kanau) is a comune (municipality) in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol, located about 35 kilometres (22 mi) north of Trento. As of 31 December 2004, it had a population of 378 and an area of 3.3 square kilometres (1.3 sq mi).

Cagnò borders the following municipalities: Laurein, Proveis, Rumo, Revò, Livo, and Cles.

Demographic evolution

References

Cagn

Cagn (also known as /Kaggen) is the supreme god of the San of southern Africa. He is the first being and the creator of the world. He is a trickster god who can shape shift, most often into the praying mantis.

Shapeshifting

Cagn is a trickster who is able to shape shift into the form of any animal. He is most frequently represented as a praying mantis but also takes the form of a bull eland, a louse, a snake, and a caterpillar. His wife, Coti, is represented as a marmot or rather a cape hyrax and is known as the mother of bees. Their adopted daughter is represented as a porcupine.

Eland myth

One of the first animals created by Cagn, and his favourite, was the eland. Cagn's wife Coti gave birth to the eland, and Cagn hid it near a secluded cliff to let it grow. One day his sons, Cogaz and Gewi, were out hunting. Not knowing their father's love for the eland, they killed it. Cagn was angry, and told Gewi to put the blood from the dead eland into a pot and churn it. Blood spattered from the pot onto the ground and turned into snakes. Cagn was displeased. Next, Gewi scattered the blood, and it turned into hartebeests. Again, Cagn was unhappy. He told Coti to clean the pot and add more blood from the eland, with fat from the heart. She churned it, and Cagn sprinkled the mixture on the ground. It turned into a large herd of eland. This was how Cagn gave meat to his people to hunt and eat. The Bushmen attribute the wildness of the eland to the fact that Cagn's sons killed it before it was ready to be hunted, spoiling it.

Silver cyanide

Silver cyanide is the chemical compound with the formula AgCN. This white solid forms upon treatment of solutions containing Ag⁺ with cyanide. This precipitation step is used in some schemes to recover silver from solution. Silver cyanide is used in silver-plating.

Structure

Its structure consist of -[Ag-CN]- chains in which the linear two-coordinate Ag⁺ ions, typical of silver(I) and other d¹⁰ ions are bridge by the cyanide ions. (This is the same binding mode as seen in the more famous case of Prussian blue.) These chains then pack hexagonally with adjacent chains ofset by +/- 1/3 of the "c" lattice parameter. This is the same as the structure adopted by the high temperature polymorph of copper(I) cyanide. The silver to carbon and silver to nitrogen bond lengths in AgCN are both ~2.09 Å and the cyanide groups show head-to-tail disorder.

Reactions

AgCN precipitates upon the addition of sodium cyanide to a solution containing Ag⁺. The precipitate dissolves upon the addition of further amounts of cyanide to form linear [Ag(CN)₂]⁻_(aq) and [Ag(CN)₃]²⁻_(aq) on the addition of further cyanide. Silver cyanide is also soluble in solutions containing other ligands such as ammonia or tertiary phosphines.