Tuesday, July 31, 2007
In telegraphy and telephony a lightning arrester is to be found where wires enter a structure, preventing harm to electronic instruments within and ensuring the protection of individuals near them. Lightning arresters, also called rush protector, are devices which are linked between each electrical conductor in a power and transportation systems and the earth. These provide a short circuit to the earth that is interrupted by a non-conductor over which lightning jumps. Its function is to limit the rise in voltage when a connections or power line is struck by lightning.
The non-conducting substance may consist of a semi-conducting material like silicon carbide or zinc oxide, or a spark gap. Primitive varieties of such flash gaps are simply open to the air, but more modern varieties are filled with dry gas and provided with a little amount of radioactive material to support the gas to ionize when the voltage across the gap reaches a particular level. Other designs of lightning arresters use a glow-discharge tube associated between the protected conductor and ground, or any one of a many of voltage-activated solid-state switches called varistors or MOV's. Lightning arresters built for substation use are consisting of a porcelain tube several feet in length and several inches in diameter, impressive devices, fill with disks of zinc oxide. A safety port is full on the side of the device to vent the occasional internal explosion without shocking the porcelain cylinder.
Tuesday, July 24, 2007
Turmeric (Curcuma longa) is a rhizomatous herbaceous continuing plant of the ginger family, Zingiberaceae which is citizen to tropical
Its rhizomes are boil for several hours and then dried in hot ovens, after which they are position into a deep orange-yellow powder generally used as a flavor in curries and for dyeing, other South Asian cuisine, and to impart color to mustard condiments. Its active component is curcumin and it has an bitter, earthy, peppery flavor.Sangli, a town in the southern part of the Indian state of
Tuesday, July 17, 2007
Whether religious love can be uttered in related terms to interpersonal love is an issue for philosophical debate. Religious 'love' may be considered a euphemistic term, more intimately describing feelings of esteem or acquiescence. Most religions apply the word love to utter the devotion the admirer has to their deity, who may be a living guru or religious educator. This love can be spoken by prayer, service, superior deeds, and personal sacrifice. Commonly, the followers may consider that the God loves the admirers and all of creation. Few traditions support the development of passionate love in the supporter for the deity. The tension flanked by religious love of the other and self-affirmation is determined in part by contrasting equally love and self-affirmation with their impostors. Additional analysis and references about such contrasts are summarized by Roderick Hindery in relative religious contexts and in the framework of love as corroborating the other.
Sunday, July 08, 2007
Marketing is one of the most significant functions in business. It is the regulation required to understand customers' needs and the benefits they seek. Academia does not have one commonly agreed upon description. Even after a better part of a century the dispute continues. In a nutshell it consists of the social and managerial processes by which goods or services and value are exchanged in order to fulfill the needs and wants of individuals or groups. Although many people appear to think that "marketing" and "advertising" are synonymous, they are not. Advertising is simply one of the lots of processes that together constitute marketing.
Tuesday, July 03, 2007
The term whale is ambiguous: it can refer to all cetaceans, to just the larger ones, or only to members of particular families within the order Cetacea. The last definition is the one followed here. Whales are those cetaceans which are neither dolphins nor porpoises. This can lead to some confusion because Orcas ("Killer Whales") and Pilot whales have "whale" in their name, but they are dolphins for the purpose of classification.