Sunday, August 26, 2007

Vegetable

Vegetable is a cookery term which usually refers to an edible part of a plant. The definition is traditional rather than scientific and is somewhat random and subjective. All parts of herbaceous plants eaten as food by humans, whole or in part, are in general considered vegetables. Mushrooms, though belong to the biological kingdom fungi, and are also commonly considered vegetables. In common, vegetables are consideration of as being savory, and not sweet, although there are many exceptions. Nuts, grains, herbs, spices and culinary fruits are usually not exact vegetables.

Tuesday, August 21, 2007

Electron

The electron is a basic subatomic particle that carries a negative electric charge. It is a spin-½ lepton that participates in electromagnetic connections, and its mass is less than one thousandth of that of the smallest atom. Its electric charge is clear by convention to be negative, with a charge of -1 in atomic unit. Together with atomic nuclei, electrons make up atoms; their interaction with adjoining nuclei is the main cause of chemical bonding.
The electron is in the class of subatomic particles called leptons, which are supposed to be basic particles (that is, they cannot be broken down into smaller constituent parts).
As with all particles, electrons are able to act as waves. This is called the wave-particle duality; also known by the term complementarily coined by Niles Bohr and can be established using the double-slit experiment.

Sunday, August 19, 2007

Denim

Denim, in American usage since the late eighteenth century, shows a rough cotton twill textile, in which the weft passes under two (twi- "double") or more warp fibers, producing the memorable diagonal ribbing specialized on the reverse of the fabric, which distinguishes denim from cotton duck. Denim was conventionally colored blue with indigo dye to make blue "jeans," though "jean" then denoted a different, lighter cotton textile; the up to date use of jean comes from the French word for Genoa, Italy (Genes), from which the initial denim trousers were made.

Sunday, August 12, 2007

Gasoline

Gasoline engines have the benefit over diesel in being lighter and able to work at higher rotating speeds and they are the usual choice for fitting in high presentation sports cars. Continuous development of gasoline engines for over a hundred years has formed improvements in efficiency and reduced pollution. The carburetor was used on nearly all road car engines awaiting the 1980s but it was long realized better control of the fuel/air mixture could be achieved with fuel inoculation.

Indirect fuel injection was initially used in aircraft engines from 1909, in racing car engines from the 1930s, and road cars from the late 1950s. Gasoline Direct Injection (GDI) is now starting to appear in making vehicles such as the 2007 BMW MINI. Wear out gases are also cleaned up by appropriate a catalytic converter into the tire out system. Clean air legislation in many of the car industries most important markets have made both catalysts and fuel injection virtually common fittings. Most modern gasoline engines are also able of running with up to 15% ethanol mixed into the gasoline - older vehicles may have seals and hoses that can be wounded by ethanol. With a small amount of redesign, gasoline-powered vehicles can run on ethanol concentration as high as 85%. 100% ethanol is used in some parts of the world (such as Brazil), but vehicles must be in progress on pure gasoline and switched over to ethanol once the engine is running. Most gasoline engine cars can also run on LPG with the addition up of an LPG tank for fuel storage and carburetion modifications to add an LPG mixer. LPG produces fewer toxic emissions and is a popular fuel for fork lift trucks that have to activate inside buildings.

Monday, August 6, 2007

Early Stages of a pregnant woman and her health

Pregnancy is not an easy job for a woman. Starting from conception to birth, a woman's body carries out the most miraculous process of fertilization, implantation and the maturity and growth of her baby (or babies). Her body is her baby's dwelling place for the next nine months (or around 40 weeks) and the occurrences of pregnancy turn into a journey of many new physical feelings. Whether it is first, second, third (or more) pregnancy, her body will respond in a different way to each individual pregnancy. So health of a pregnant woman is very important to be taken care of.

Throughout the first 12 weeks of pregnancy called the '1st trimester’, a woman's body adjust to present a fostering and protective environment for her baby to grow and develop. Seldom, the early signs of pregnancy can make a woman feel puzzled. This may be for the reason that many of the physical signs of in the early hours of pregnancy such as enlarged tender breasts, sensitivity of tiredness, overstuffed and perhaps experiencing spasms and/or pelvic uneasiness can be considered as normal pre-menstrual signs. In all these stages the health of the woman declines because she is not only feeding herself, also her little developing fetus.

They may also sense disgusted or sick, due to morning sickness. It is not unusual to feel unsure about what is 'normal' during the early stages of pregnancy development, and unfamiliar signs or sensations may trigger concerns about the health, of her and baby. It’s been proved by the Gynecologists that every woman's body will react in a different way to being pregnant. Many women find their early pregnancy symptoms very difficult to cope with, both at work and generally.

Due to continuous vomiting and nourishing the fetus the pregnant woman may be exhausted very easily. She has to constantly keep her energetic by maintaining a healthy diet schedule as prescribed by the physicians. She can have more fresh green vegetables and fruit juices to make her feel fresh and energetic. It’s always significant to make sure that she avoids drinking and smoking because whatever she has will be directly absorbed by the baby. Once the fetus starts developing she has to get primed for all the obstacles she has to experience throughout pregnancy. Many psychologists predict that a healthy pregnancy is not only from taking care of the nutrition for the pregnant women, more than that she has to be taken care from all the hassles in her family. It’s the duty of a loving husband to caress her comfortably and keep her happy always throughout the gestation period. This will not only make the woman feel happy and hopeful it will directly lead to the good development of the fetus.