Monday, September 29, 2008

The Caloric Balance Equation

When it comes to maintaining a healthy weight for a lifetime, the bottom line is -calories count! Weight management is all about balance—balancing the number of calories you consume with the number of calories your body uses or "burns off."

A calorie is defined as a unit of energy supplied by food. A calorie is a calorie regardless of its source. Whether you're eating carbohydrates, fats, sugars, or proteins, all of them contain calories. Caloric balance is like a scale. To remain in balance and maintain your body weight, the calories consumed (from foods) must be balanced by the calories used (in normal body functions, daily activities, and exercise).

Wednesday, September 24, 2008

Siamese Fighting Fish

This fish can safely be kept in a community tank, although not with another male of their own species, and also, not usually with a female lest they start protecting (or hating) her and causing trouble all round.

In gorgeous color sheens; pure or mixed, with red, blue, green and albino predominating; but by no means being exhaustive. Growing to a sturdy 3 in., these dominating males are short-lived, thirty months or les, and ride roughshod over their terrified females who are shorter finned, paler, smaller, and no match whatsoever for their vigorous partners.

Monday, September 15, 2008


The common bean includes the edible fresh, and processed, green snap, green-shelled, and dry beans. In 1969, about 1,872,000 acres were devoted to the many types and scores of cultivars of beans, which had a farm value of more than $243 million. Fresh snap beans are primarily produced in Florida and along the eastern seaboard; processed beans, in New York, Oregon, and California, and along the eastern seaboard. Dry beans are produced in two main areas, in the West (Idaho, Colorado, and New Mexico) and in north central U.S. (in and around Michigan).

Tuesday, September 09, 2008

What causes tornadoes?

Thunderstorms develop in warm, moist air in advance of eastward-moving cold fronts. These thunderstorms often produce large hail, strong winds, and tornadoes. Tornadoes in the winter and early spring are often associated with strong, frontal systems that form in the Central States and move east. Occasionally, large outbreaks of tornadoes occur with this type of weather pattern. Several states may be affected by numerous severe thunderstorms and tornadoes.
During the spring in the Central Plains, thunderstorms frequently develop along a "dryline," which separates very warm, moist air to the east from hot, dry air to the west. Tornado-producing thunderstorms may form as the dryline moves east during the afternoon hours.
Along the front range of the Rocky Mountains, in the Texas panhandle, and in the southern High Plains, thunderstorms frequently form as air near the ground flows "upslope" toward higher terrain. If other favorable conditions exist, these thunderstorms can produce tornadoes.
Tornadoes occasionally accompany tropical storms and hurricanes that move over land. Tornadoes are most common to the right and ahead of the path of the storm center as it comes onshore.

Monday, September 01, 2008

Photovoltaic (PV) Device

A solid-state electrical device that converts light directly into direct current electricity of voltage-current characteristics that are a function of the characteristics of the light source and the materials in and design of the device. Solar photovoltaic devices are made of various semiconductor materials including silicon, cadmium sulfide, cadmium telluride, and gallium arsenide, and in single crystalline, multicrystalline, or amorphous forms.