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A Bright Future For Solar Energy: An Alternative Energy Source

Alfred Lancer — Tue, 31 Aug 2010 10:46:07 +0000

I was first introduced to solar energy in the movie, Race the Sun with James Belushi and Halley Berry in the lead. It was a story about low- income and under achieving Hawaiian students encouraged by their teacher to join the Solar Car race. In the movie, a car shaped like a cockroach and covered with solar panels used the sun’s rays as an alternative energy source to run the car.

Solar energy is the light and the heat from the sun. Solar energy is free and its supplies are unlimited. There are n air and water pollution caused about by using solar energy. But there is still some impacts on the environment although indirect.

Photovoltaic cells used to convert sunlight into electricity uses silicon and also produce some waste materials. There are also large solar thermal farms and these farms can also be harmful to the environment and desert ecosystems if not properly managed.

Solar energy can be used on different aspects. Solar energy can be used in agriculture. Greenhouses (which is entirely different from greenhouse gas) convert solar light to heat to be maximized in enhancing the growth of plants and crops. Greenhouses has been around since the Roman times and modern greenhouses were built in Europe in 16th century. Greenhouses are still an important part of horticulture nowadays,

Daylight systems are also being used to maximize the energy released by the sun. It is used to provide interior illumination replacing the artificial lighting. Daylight systems include sawtooth roofs, light shelf, skylights, and light tube. Daylight systems when they are properly implemented can reduce lighting-related energy consumption by 25 percent.

Solar energy can also be developed into solar thermal technologies which can be used for water heating, space heating, space cooling and process heat generation. Solar energy can also be used to distil water and make saline or brackish water potable or drinkable.

The solar water disinfection or SODIS involves exposing water-filled plastic polyethylene terephthalate or PET bottles. This process takes a long time, since the exposure time varies on the weather conditions. It requires a minimum of six hours to two days during days with overcast conditions. Currently, there are two million people in developing centuries use SODIS for their daily drinking water needs.

Also sunlight can be converted into electricity using photovoltaics or PV. PV has been mainly used to power small and medium-sized things like a calculator powered by a single solar cell. There are homes powered by photovoltaics. Using solar energy for water and space heating is the most widely use application of solar energy. While ventilation and solar air heating is also growing in popularity.

There are three main ways in using solar energy. The main way of using and converting solar energy is by using the solar cells. Solar cells convert light directly into electricity. Solar cells are also called photovoltaic or photoelectric cells.

Meanwhile, solar furnaces use a huge array of mirrors to concentrate on the Sun’s energy into a small space and produced very high temperatures. Solar furnaces are also called “solar cookers”. A solar cooker can be used in hot countries to cook food.

With all the benefits if using solar energy, there is still a downside for this alternative energy source. It does not work during night time. The cost of setting up solar stations is expensive, but the benefit of using solar energy when accumulated is so much more.

You can find more Alternative Articles at Find Articles

A Woman Must Have Children to Be a Surrogate Mother

admin — Mon, 14 Dec 2009 01:43:44 +0000

By [http://ezinearticles.com/?expert=Rayven_Perkins]Rayven Perkins

Becoming a traditional or gestational surrogate mother and helping another couple complete their family is a wonderful and joyous process. Most healthy women who have had relatively easy pregnancies can qualify to become a surrogate mother, so long as they themselves are already mothers.

Every woman who is being considered as a surrogate mother must have had at least one healthy live birth. This rule is extremely important, and a childless woman will not be considered for surrogacy. There are three main reasons for this.

1.Proven pregnancies
Surrogacy is extremely expensive for the intended parents. They must pay for all of the expenses of the pregnancy in addition to the fertility treatments, lawyers fees, agencies, and surrogate’s fees. These fees can run into the tens of thousands of dollars, if not more.

A woman who has not previously given birth is an unknown risk. She could have infertility problems of her own that she has not realized yet. She could have trouble carrying the child. Because of this expense and the fact that nothing is known about this woman’s ability to carry and deliver children, no intended parent, surrogacy agency, or IVF clinic is willing to take that chance.

2.Unsure emotions
A woman who has not previously given birth may find herself dealing with unexpected emotions when it comes time to deliver and relinquish the surrogate baby. These emotions may happen even with a self-confident woman who has no desire to parent a child anytime soon.

That is not to say that the woman would have any legal ability to keep the child, but it could prove to be a very upsetting situation for both the surrogate mother and her intended parents. Women who already have their own children are able to go home to those children.

Sometimes surrogates are upset, unexpectedly, when it comes time for the birth of the baby. But those with children of their own are able to receive comfort with this fact.

3.Anything can happen
Not only does a woman who is considering becoming a surrogate mother need to have her own children, she also needs to be completely done with her family. She should not desire to have any more children in the future.

A surrogate pregnancy is just like any other pregnancy. Occasionally, something may happen that will cause the surrogate mother to be unable to ever carry another child.

This is a sad situation when it happens to a surrogate mother who has completed her family. It is horribly tragic if it happens to one who is not finished having her own children. It has happened more than once that a surrogate mother has turned into an intended mother, needing the help of another surrogate to complete her family at a later date.

For a woman who has never given birth before, to be unable to ever carry your own children due to the fact that you decided to help another family first, this can be devastating. Even if the woman is not planning ever to have her own children, time has a way of changing one’s mind.

Though wanting to become a surrogate mother for another couple is a noble and generous thing to do, a woman must have her own children first. It is simply a bad idea to do otherwise.

Rayven Perkins is an author and two-time surrogate mother. To find out more information on surrogacy or how to become a traditional or gestational surrogate mother, please see her site
Information on Surrogacy Qualifications

Article Source: http://EzineArticles.com/?expert=Rayven_Perkins http://EzineArticles.com/?A-Woman-Must-Have-Children-to-Be-a-Surrogate-Mother&id=1407328

Surrogate Blog

admin — Thu, 12 Nov 2009 19:50:00 +0000

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