Tuesday, September 25, 2007

Electromagnetic hypersensitivity syndrome

Some users of mobile handsets have reported feeling several unspecific symptoms during and after its use, such as flaming and tingling feelings in the skin of the head and extremities, fatigue, sleep disturbances, dizziness, loss of mental attention, reaction times and memory retentiveness, headaches, malaise, tachycardia and disturbances of the digestive system. Some researchers, implying a causal relationship, have named this syndrome as a new diagnostic entity, EHS or ES. The World Health Organization prefers to name it “idiopathic environmental intolerance", in order to avoid the insinuation of causation.

Tuesday, September 18, 2007

The Vanilla orchid

The main type harvested for vanillin is Vanilla planifolia. Even though it is native to Mexico, it is now extensively grown throughout the tropics. Madagascar is the world's largest producer, Additional sources include Vanilla pompona and Vanilla tahitiensis (grown in Tahiti), though the vanillin satisfied of these species is much less than Vanilla planifolia.

Vanilla grows as a vine, mountaineering up an existing tree, pole, or other support. It can be full-fledged in a wood (on trees), in a plantation (on trees or poles), or in a "shader", in increasing orders of productivity. Left alone, it will produce as high as possible on the support, with few flowers. Every year, growers fold the senior parts of the plant downwards so that the plant stays at heights accessible by a standing human. This also very much stimulate flowering.

Tuesday, September 11, 2007

Stratosphere

From the Latin word "stratus" meaning a scattering out. The stratosphere extends from the troposphere's 7 to 17 km (23,000 – 60,000 ft) range to about 50 km (160,000 ft). Temperature in crease through height. The stratosphere contains the ozone layer, the division of the Earth's atmosphere which contains comparatively high concentrations of ozone. "Relatively high" means a few parts per million—much higher than the concentrations in the lower atmosphere but still small compare to the main components of the atmosphere. It is frequently located in the lower portion of the stratosphere from approximately 15 to 35 km (50,000 – 115,000 ft) above Earth's surface, although the thickness varies seasonally and geographically.

Tuesday, September 04, 2007

Yawl

A yawl (from Dutch Jolt) is a two-misted sailing craft similar to a sloop or cutter but with an extra mizzen mast well behind of the main mast, often right on the transom. A small mizzen sail is raise on the mizzen mast.
The yawl is often puzzled with the ketch, which also has two masts with the main mast foremost. The common view is that a ketch has the mizzen mast forward of the rudder post whereas the mizzen on a yawl is aft of the wheel post. This definition is a relatively recent meaning and the historical definition is likely to be quite different.
In practice, on a ketch the main purpose of the mizzen mast is to help push the vessel, while on a yawl it is mostly used for the purposes of trim and balance. In result the mizzen sail of a yawl tends to be smaller, and the mainsail larger, when compared to a ketch of similar size. The mainsail of a yawl will be comparable in size to that of a similarly sized and proportioned sloop.
The yawl was initially developed as a rig for commercial fishing boats, one good example of this being the Sercombe Yawl (a traditional small fishing boat built in Devon). In its heyday, the rig was mainly popular with single-handed sailors, such as circumnavigators Joshua Slocum and Francis Chi Chester. This was mostly due to the remarkable ability of a yawl to be trimmed to follow a compass course exactly despite minor wind shifts. Modern self-steering and navigation aids have made this less important, and the yawl has normally fallen out of favor.

Monday, August 27, 2007

Leaf vegetable

Leaf vegetables, also called potherbs, greens, or leafy greens, are plant leaves eat as a vegetable; sometimes attend by tender petioles and shoots. Although they come from a very broad diversity of plants, most share a great deal with other leaf vegetables in nutrition and cooking methods.

Nearly one thousand types of plants with edible leaves are known Leaf vegetables most often come from short-lived herbaceous plants such as lettuce and spinach. Woody plants whose leaves can be eaten as leaf vegetables include Adenosine, Aralia, and Moringa, Morus, and Toona species.

The leaves of many fodder crops are also edible by humans, but frequently only eaten under famine conditions. Examples include alfalfa, clover, and most grasses, as well as wheat and barley. These plants are often much more prolific than more traditional leaf vegetables, but utilization of their rich nutrition is difficult, primarily because of their high fiber content. This obstacle can be overcome by further giving out such as drying and grinding into powder or pulping and pressing for juice.

During the first half of the 20th century many grocery stores with vegetable sections sold small bunch of herbs tied with a thread to small green and red peppers known as "potherbs."

Tuesday, August 21, 2007

Security

A security is a fungible, negotiable interest on behalf of financial value. Securities are generally categorized into debt and equity securities. The company or other individual issuing the security is called the issuer.
Securities may be represented by a certificate or, more characteristically, by an electronic book entry interest. Certificates may be bearer, meaning they entitle the holder to rights under the security merely by holding the security, or registered, meaning they give the right the holder to rights only if he or she appears on a security register maintained by the issuer or an intermediary. They include shares of corporate stock or mutual funds, bonds issued by corporations or governmental agencies, stock options or other options, limited partnership units, and a variety of other formal investment instruments that are negotiable and fungible.

Monday, August 13, 2007

Chef's uniform

The conventional chef's uniform, including toque (traditional hat), white double breasted jacket, and checked pants are immediately recognized by most members of the Western world, especially in this day of television's celebrity chefs. The double breasted jacket can be inverted to conceal stains. Its thick cotton cloth protects from the heat of stove and oven and protects from splattering of steaming liquids. An apron is an obviously useful piece of utensils used to guard the rest of the wearer's garments from food splatters and stains.

The toque (chef's hat) dates back to the 16th century when hats were regular in many businesses. Different heights of hats point out rank within a kitchen. Some modern chefs have put their own diverse whirl on the traditional uniform. But the traditional, practical, clothing of the chef still remainders a standard in the food industry.