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Save Energy To Reduce Global Warming

Editor — Sat, 05 Dec 2009 16:08:31 +0000

Saving energy is not about being a miser, but being caring enough to save this planet from the effects of Global Warming. Our elders were more conserving then we were; they lived during the wars when resources were scarce. However, the post war generation, especially in western developed countries, became a very consuming society, where the motto was 'live for today'. The result was that in the last 20 to 30 years, the 'greenhouse gases' that causes global warming have increased to an alarming level and a natural phenomena that made life possible in this planet, became a crisis, threatening the planet.

How Is Energy Consumption Related To Global Warming?

Energy we get today is mostly by burning fossil fuels like, coal or petroleum. They release CO2 which is the leading 'Greenhouse gas' to affect global warming. Therefore, saving energy will lead to less consumption of fossil fuels and reduce the emission of CO2.

How Do We Do It?

Every big journey begins with a small step; so start saving energy in your home first. Look around; all electrical equipment that you use has an energy saving feature, so use it. The traditional light bulbs consume huge electricity, but give less light; so change them to CFL lights. In fact, some countries are banning the making of traditional bulbs. Switch off light, fans, and other electrical application when not in use. During winter, wear worm clothes indoor, so that less room heating is needed. See, that you have closed the windows well before switching the air conditioner on. Do not use hot water to wash even ordinary everyday clothes. Turn off the taps, when not needed, to save water. While, watering the plants, use sprinklers instead of garden hose. Walk small distance and try to use lead free oil. Use car pool for same destination and take public transport whenever possible. Cars do the biggest emission of CO2.

Another most important thing to save is, paper, as trees are cut down to make paper. Utilize a paper to it's fullest. Go for recycled paper whenever possible. In office, try to use as less paper as possible. If you think that paper you subscribe are sending you unnecessary papers write to them.

Speak Up

Just doing your part won't be enough, speak up when you think that energy is being wasted. See to it that those streets light in your area are turned off during daytime. Ask the government to enforce carbon emission reduction seriously and persuade the authorities to use alternative energy source, whenever possible. Only then can we reduce global warming and save our future. Remember, if we do not act today, we will leave a world full of war, famine, and misery for our future generation to inherit.

Solar Power Appliances

Editor — Sat, 05 Dec 2009 09:51:31 +0000

You can save an incredible amount by using solar power appliances, and if you are interested in purchasing solar power appliances yourself, then you should know that there are a few different companies in particular that you should take into consideration.

Finding Solar Power Appliances

One of the best solar power appliances that you can get is the solar ant charmer. This is an appliance which is placed in the center of an ant mound, and which is activated by the sun. The solar energy that is produced by the sun then works to provide the electrical stimulus, which is what actually attracts the ants.

The ants crawl into this appliance and then they cannot get out. It is estimated that about 60,000 ants can be caught in about 20 minutes, which is really astounding. In order to help you keep track of the number of ants caught, you can look at the marked meter that is located just inside of the charmer. This appliance is great because it does not require any bait, chemicals or batteries.

Another popular solar power appliance is the solar anti-mosquito guard, which is a device which again is powered by the sun, and it works to keep mosquitoes away by using an ultra high sonic frequency that repels mosquitoes both day and night. The best part of all is that it is safe for everyone to use, and is even safe for pets and children, because there are no harmful chemicals that are being used.

Another of the best solar power appliances is the 14-8008 solar mulching lawnmower, which is a lawnmower that has solar panels attached, and so it is great because there are no cords that you can run over and no need to plug anything in. As well, because it is solar powered it is not harmful to the environment and as well is incredibly quiet while it is running.

The solar shower is a fun option, and all you have to do is, when you want, hop underneath of it, adjust it to the temperature that you prefer, and there you are. How it works is that your garden hose is connected to it to provide the water, and the sun is used in order to actually warm up the water. It can reach temperatures of up to 130F in about 1 or 2 hours in sunny weather, and as well it can store up to 5.5 gallons of water.

Although the initial price of solar energy can be rather pricy, overall you can save yourself a great deal of money, and this is why solar energy has become so incredibly popular in the world today.

Verizon Wireless Broadband

Editor — Wed, 02 Dec 2009 13:13:31 +0000

As cellular technology develops, we go closer to being able to do the same things over wireless phones as we do over land lines. Currently, the big gap between the capabilities of the two has been the speed in which data can be transferred. For the last few years, while phones have been able to access the Internet, it's been at speeds equivalent to dial-up speeds ten years ago. However, companies such as Verizon Wireless Broadband have new technology that will allow true broadband speeds to be enjoyed using cellular technology. The flexibility of this new technology not only gives us faster Internet speeds when using cellular technology, but also gives several different ways to connect with companies like Verizon Wireless Broadband.

With Your Phone

One of the most obvious ways to connect with Verizon Wireless Broadband is to use an appropriate cellular phone to connect. This has been how most people probably imagine what it's like to use Verizon Wireless Broadband. And since phone technology has advanced to where they do have vivid color screens and sound technology, it's certainly a good use. Cellular phone companies such as Verizon Wireless Broadband have been doing their best to promote this lately, using digital music and video to help make their new phones seem more appealing. An advantage to having a phone like this is that with the right software and a cable, you can connect it to your computer for a wireless Internet connection wherever you are.

Using Your Computer

If you're not keen on using your phone to connect your computer to the Internet, then there are tools to help you computer access the Verizon Wireless Broadband network. Verizon has partnered with several laptop manufacturers to make computers that have this technology built in, so as long as you purchase the right computer, you'll always have one way to access the Verizon Wireless Broadband Network. But, a more flexible method may be to purchase a PC card, so any laptop, or the one you already have, can access that network

As A Backup For Your Business

For those who run businesses that need Internet connections, Verizon Wireless Broadband offers a final way to access their network, with a device that attaches to your company's network router. This method, however, isn't for constant use but for maintaining network connectivity when your main line goes down. Their backup device will detect when your company's main service goes down and will connect your business to the Verizon Wireless Broadband network instead, keeping you from suffering large interruptions. But whether you're using this new technology as a way to enjoy videos on your phone or to keep your business running, Verizon Wireless Broadband has flexible service with something to offer you.

Nuclear Medicine Tests

Editor — Wed, 02 Dec 2009 02:24:31 +0000

Nuclear medicine tests require passing radioisotopes in the patient's body normally via intravenous needles. The radiation is injected only in small amount and that will not stay in the patient's body for long time.

Some of the nuclear medicine tests are as follows are described below.

The radiation inserted in the patient's arm, will enter the soft tissues of human body and help in capturing clear images by the gamma cameras. It is useful in detecting bone fractures, infection and bone tumor. Bone scanning is safe for all. However, pregnant women and feeding mother are restricted to use this method. Drinking plenty of water and emptying the bladder frequently before scanning will help to improve the quality of scanning images.

Nuclear medicine tests for diagnosing thyroid glands are taken by giving iodine isotopes in pill form or through injection one day before scanning. This will help in detecting the hyperactive or under active thyroid glands. This will take minimum one hour to complete. This test will not cause any side effects. But some people may experience vomiting, skin rash etc due to radiation.

Gallium is a form of radioactive compound, which is injected in the patient's vein through the arm to detect any infections in any part of the body. This is known as Gallium scan.

Nuclear stress test is taken to detect coronary artery disease. It helps in diagnosing the functioning of heart muscle, blood flow etc. Nuclear medicine test is taken at two levels, when the heart is at rest and at stress.

Gastric emptying is useful in detecting gastro paresis disease, which is common in diabetic patients.

Normally nuclear medicine tests do not require any special preparation. But sometimes the doctor will ask you to remain on empty stomach. This will enhance the clarity of images. The radiation required for these tests will differ according to the organs. Though there are number of radioisotopes available, Food and Drug administration approves only a few amongst them. The nuclear medicine tests show clear images than x-ray and CT scan.

What Are Nuclear Medicines

Editor — Sun, 29 Nov 2009 21:39:31 +0000

Nuclear medicine is a branch of medical science utilizing the nuclear properties of matter for the sake of therapy as well as diagnosis. It is also a part of molecular imaging as the images produced reflect the biological processes occurring at cellular as well as sub cellular levels. Nuclear Medicines are the used as radioactive materials or isotopes for obtaining particular diagnostic information. A pattern of rays is transmitted by the isotopes that represent the shape, size and the functioning of the organ.

Nuclear medicine is a specialized department in the field of radiology. It involves some diagnostic examinations resulting in the images of the anatomy and the functioning of the body. Based on the emission of energy from the radioactive substance inserted to the patients, by mouth or through the veins, the images are developed. The procedures of nuclear medicines make use of the pharmaceuticals labeled with the radionuclides. At the time of diagnosis, the patients are given radioactive substances and the emitted radiation is then detected by the therapist. This will partially solve your question "what are Nuclear Medicines"

The therapist can assess the images of the nuclear medicines in diagnosing the disease. Nuclear medicine is used to:

* Detect the infections, tumors and other disorders of the organs in the body

* Analyze the functioning of the kidney and scanning the lungs for respiratory problems

* Identify the bleeding in the bowel or the blockage of the gall bladder

* Evaluate the bones for fractures, arthritis, or infections.

* Determine the presence of cancer

* Measure the functioning of the thyroid for detecting the over and under active thyroid.

The information generated with the help of the nuclear medicines is unique and cannot be obtained using any other procedures. Nuclear medicines provide you with the most useful information for diagnosing any disease and determining the appropriate treatment. It is a painless procedure associated with no side effects. Allergic reactions to the radiopharmaceutical materials may be seen in very rare cases. It generally takes a day or two for interpreting, reporting as well as delivering the results of the nuclear medicine.

Bt Broadband

Editor — Sat, 28 Nov 2009 05:39:31 +0000

When the internet first began, the only choice people had for logging on was dial-up. That meant that a modem hooked up to their phone line and that was how they accessed the virtual world within their computers. However, as times have changed, so has technology, and the internet is now as fast as ever, thanks, in part, to BT broadband.

Faster Downloads

When internet surfers were forced to use dial-up, they were often faced with excruciating download times. If the file was really large, it may take a day or more to download. Who has that kind of time, or patience? Well, no longer do these long download times have to ruin your day for now there is BT broadband.

With BT broadband, you get faster downloads as well as faster page loading. That means that you can actually accomplish whatever it is you seek to accomplish online in an enjoyable, and timely, manner without having to wait for long periods of time for the dial-up modem to secure your connection. Not only that, but BT broadband saves your phone line for what it's actually designed for: making and receiving phone calls.

BT broadband can even provide a network if you have several computers in your home or office. With BT broadband, all computers can work off the same line and there will be little to no disruption of service, nor will the quality be compromised.

To find BT broadband, search your local yellow pages for providers in your area. There's bound to be a provider next to you who will come out and set you up with BT broadband. If you've always used dial-up and are going to be using BT broadband for the first time, prepare to be blown away. Just the speed with which the pages load will seem like magic.

Once you go to BT broadband, you will never go back to dial-up again. So, save your phone for what it's truly designed for and no longer wait hours or days for downloads, no matter what they may be. Get BT broadband today and finally get with the ever changing times.

Broadband internet service isn't that expensive and providers are offering specials all the time to entice new customers to try it out for themselves. They know that once someone switches to broadband, they are forever hooked. After all, there are more important things to be doing than to have to wait for download times.

Nuclear Medicines In Renal Disorders

Editor — Fri, 27 Nov 2009 06:35:31 +0000

Nuclear medicine in renal disorders has wide range of diagnostic methods for renal disorders. It is a valuable tool in determination of renal functions. Nuclear medicine is the branch of diagnostic radiology and gives unique structural and functional information of the infected body organ.

In the practice of the nuclear medicine, administration of the body is carried out with the help of radioactive isotopes in the form of drugs that travel to particular body part. These radioactive isotopes then emit gamma radiations. These radiations are captured with gamma cameras for imaging. Appropriate amount of radioactive isotopes and location of the organ, informs about the body organ functions.

Usually to access the renal functions, renal scintigraphies are used and expressed as glomerular filtration and kidney perfusion. Now day's recent methods depend on positron emission tomography that generates images with superior resolution and complete quantization of biological processes like enzyme activities and transport activities. With the help of renal scintigraphy, relative amount of radioactive substances are extracted from blood of kidney. It is proportional to kidneys function and is called glomerular filtration rate (GFR).

Renal disorder is mutilation of excretory kidney function. In these disorders, urinary amount decreases considerably in many patients whereas acute renal failure is associated with normal kidney size. Diuresis varies from normria to anuria. Because of this and other serious problems, application of sensitive and inexpensive methods in assessment of renal function is necessary. Therefore, imaging and non-imaging techniques are available to measure GFR and effective renal plasma flow (ERPF) using radioactive substances.

These techniques will help in diagnosis and treatment for the renal disorders. Results obtained from such techniques have shown nuclear medicine in renal disorders is helpful to cover patients from cancer. Treatment for renal disorder is of few weeks and provides the result in very short duration of time. Therefore, nuclear medicines in renal disorder are a effective way to get rid of renal diseases.

Home Wireless Networking

Editor — Thu, 26 Nov 2009 01:16:31 +0000

If you have more than one computer at home, you are probably looking to connect them to get the most out of your files, computer accessories and internet service. With a wireless network you can easily expand the flexibility and convenience of your home computers. It is extremely easy and affordable to build a home wireless network, here are some tips

A wireless network is super simple to set up. To create a wireless network, you only need a wireless router for the main computer and a wireless card for each computer that you are hooking up to the network. With some of the newer computer, the wireless or network cards are already included with the computer and can easily log into any wireless network available.

Many people love the convenience of moving their computer around their house and still being connected to the internet and computer accessories. Years ago a computer network needed to be connected by wires. Many people spent lots of time and money making holes in their walls in order to connect their computers. Today you can sit in your kitchen with your computer, at your desk, or even outside in your yard. With a wireless home network, you can free your computer from the cord.

Another great feature of wireless networking is that each computer can be connected to only one printer, scanner or other peripheral device. There is no need to buy several printers, each computer can connect with the peripheral device and complete a job without any wires. Not only does this saves you money but also makes any computer productive. So for great features and convenience check out home wireless networking.

Great Locations For Wind Turbines

Editor — Mon, 23 Nov 2009 14:45:31 +0000

Wind turbines are used for several reasons but the main reason is to generate energy from the wind. This may sound difficult but it is possible. You experience energy from the wind whenever someone runs past you quickly. A second after they pass you can feel the wind from them going by. This wind that you feel if produced in a great amount can be converted into energy. You may have seen the tall turbines standing in the fields when you drive by. There is the older classic model windmill that helped to crush grain when the windmill blades would turn, it would turn a mechanism inside which was attached to a device that would crush grain for flour. There are several different locations that are perfect for the wind power and depending on where they are as to how much energy they produce.

OffShore Turbines can be placed offshore in order to produce energy from wind in the air and from the water. They don't bother the view as much when they are out on the water and the noise that they make cannot be heard on land. The average wind speed is higher on the water because the water has less surface roughness and can use every part of energy from the wind. There are several different locations today that you might see wind turbines offshore and there are more building in the future. The one main complaint with people and turbines is the noise they make. It is constant and annoying to some. The other complaint is that they are tall and not pleasant to look at.

While all of these are true the main reason for wind turbines is to find an alternative to using fossil fuels and other non-renewable resources to produce our power. When a tower is built offshore it may cost more money in the long run because the towers need to be higher so there will be no restrictions. Turbines access power through undersea cable which may use high voltage direct current. The sea salt may also cut down on the length of time these turbines stay in shape.

Near Shore These turbines can be seen but not heard. They are on water so they can produce enough energy compared to being totally on the land. Because the sea shore lines are considered to be very windy due to the tides coming in and the wind on the water, it becomes the perfect location for a turbine. There are issues and concerns with how wildlife is using these towers and zones for their nesting and habitats. There is another concern that the shoreline wind farms are not in the best interests of those who wish to come to the shore line to visit. It becomes a sight to see and hear the generation of power through these wind mills. The size of the towers can be minimal but this causes controversy as well because the smaller the tower the lesser amount of energy to produce.

Off shore and near shore are the choices we have. There are advantages and disadvantages to each one. We have to weigh the results with the problems to see which way may be best for everyone.

Solar Energy Uses

Editor — Mon, 23 Nov 2009 11:55:31 +0000

Solar energy is electricity that is produced by the sun's radiation. It has been used in various different traditional technologies for centuries, and as of recently has come into incredibly widespread use where other power supplies are absent, such as in remote locations and in space, for instance.

Solar Energy Systems

Solar energy can only be produced through a solar energy system of some sort, and these systems are composed of solar thermal collectors, a storage tank and a circulation loop. There are three basic classifications of water heaters, which are: batch systems which consist of a tank that is directly heated by sunlight, active systems which use pumps to circulate water or a heat transfer fluid, and passive systems which circulate water or a heat transfer fluid by natural circulation.

Solar Energy Uses

There are various solar energy uses, with one of the most popular being solar lighting. Solar lighting works by retrieving the radiation that is produced from the sun during the day, storing it, and then using it to produce light once the sun has gone down. It is an incredibly cost-effective and resourceful means of lighting.

Another of the most popular solar energy uses involves solar electricity. This solar electricity is produced by solar cells, which are devices or banks of devices that use the photovoltaic effect of semiconductors in order to generate electricity directly from sunlight.

Solar cooking is another of the common solar energy uses, and how this process works is that a solar box cooker is used to trap the sun's energy in an insulated box. Solar cooking is incredibly popular around the world as it is an extremely simple and cost-effective resource for cooking, and solar cooking is even helping many developing countries, resulting in reducing both the demands for local firewood and maintaining a cleaner breathing environment for the community.

There are many other solar energy uses as well, and one is just important as the next. Because in the world we live in today our finite resources are beginning to run out, our need for solar energy is going to become that much direr. This is why it is so important that we all do our part and make sure that we help the solar energy causes as much as possible.

We also need to try and stretch out the remaining finite resources that we have until solar energy can be used full-time and supply all the energy that is needed around the world.

The History Of The Movement To Stop Global Warming

Editor — Sun, 22 Nov 2009 21:56:31 +0000

People have not always known about global warming. The idea had to start somewhere. The history of the global warming concept is probably older than you might think. It all began in the late 1800's.

There was a scientist named Svante Arrhenius who was studying fossil fuel combustion in Sweden towards the end of the 19th century. An 1859 prediction claimed that the burning of such fuels would eventually lead to the process of global warming. Svante Arrhenius recognized that temperatures on the earth's surface were related to carbon dioxide levels in the atmosphere.

Arrhenius studied global warming to find out the average surface temperature of earth. He figured that doubling the carbon dioxide in a greenhouse effect would raise the surface temperature by five degrees Celsius. He also concluded that human activities could be to blame for future global warming. His focus, though, was on how much carbon dioxide would have to be taken away to cause global cooling.

Infrared spectroscopy was developed in the 1940's that could be used to measure the sun's radiation. It was used to measure the absorption of radiation with and without added carbon dioxide. Gilbert Plass determined that the increased carbon dioxide would cause the earth to absorb more radiation, and so cause global warming.

From late in the 1950's to early in the 1960's, Charles Keeling produced curves of the concentration of carbon dioxide in the atmosphere. He showed the scientific community that the earth had gone through 32 distinct weather variations. It had previously been thought that there had only been four. This raised alarms of ice ages rather than global warming.

Much changed in the 1980's. The curve was followed and it was discovered that temperatures were getting higher at a rapid rate. Suddenly people stopped preparing for a cooling planet and began pondering global warming. Since Stephen Schneider first gave global warming a name and predicted its coming, which he did in 1976, the emphasis on the subject by the media grew more and more intense.

The Intergovernmental Panel on Climate Change (IPCC) was created in 1988, just as the greenhouse effect was being named. In the IPCC, there are 2500 experts in all fields of study that are affecting and are affected by global warming. These include such diverse specialties as meteorology, economics, medicine, and oceanography, for example. The IPCC is still actively seeking information on global warming.

The term "the greenhouse effect" has fallen somewhat out of favor since 1990. Statistics did not follow the predicted course for the theory. However, the Kyoto Protocol, negotiated in Kyoto Japan, was aimed at preventing and correcting global warming.

Global warming is still a term that is in use and making the news daily. Since Al Gore's movie, An Inconvenient Truth, people have been more aware of the problem than ever. Presently, there are scientists, celebrities, and all manner of people who are working on solutions for global warming.

The history of inquiry into the nature of global warming is over 110 years old. There have been advances and retreats in the science. However, the future of global warming research and activism seems positive.

How Does Solar Energy Work

Editor — Fri, 20 Nov 2009 17:07:31 +0000

Through all the concern about pollution and global warning, some people have attempted to figure out how to run our world using alternate sources of energy. One of these sources, solar energy, holds the appeal of coming from a renewable resource, but the question that the average person has is, how does solar energy work? To answer the question, how does solar energy work, let's take a look at the basics of how this renewable energy source can help.

Our Sun: The Source

Of course, the big key to the question, how does solar energy work, is the energy from the sun. A lot of solar energy hits the Earth; more, in fact, than we can possibly use! The actual amount of energy of energy that hits the planet every minute is much greater than the amount of energy we use through fossil fuels like coal each year. The problem, of course, is learning to harness that energy, though there are plenty of ways to do this.

Absorbing The Energy

The answer to the question, how does solar energy work, is to find a way to absorb that energy for use in other applications. For instance, a solar cooker is usually a box with a transparent lid that reflects light into it, which absorbs a lot of energy, much like a car sitting in the sun might. This in turn heats the inside of the box to temperatures high enough to cook food, making use of the ambient solar energy to perform the same activities in a stove. This answer to the question, how does solar energy work, is particularly critical in impoverished areas where fuel for cooking fires is not readily available.

Absorbing In Different Ways: Photovoltaic Cells

Understanding how solar energy can be used for cooking doesn't quite answer the question, how does solar energy work, with respect to electricity. The answer to this question is through photovoltaic cells. In essence, the way these power cells work is similar to the way it works in a cooker; that is, solar energy is absorbed in order to create an effect.

But in this case, instead of just heating, special cells made of conductive material, called photovoltaic cells, absorb the energy, which knocks electrons loose from atoms and results in a small electrical charge. The resulting electricity, in the form of direct current, can be converted to alternating current, which American households use. So, next time someone asks you how this form of energy works, you at least have a basic understanding of how solar energy generates electricity.

Renewable Energy Jobs

Editor — Fri, 20 Nov 2009 01:54:31 +0000

Renewable energy is a new growth area.

The aforementioned statement is quite true. After the ratification of the Climate Change Convention by the United Nations in 1992 and the drafting of the Kyoto Protocol in 1997, different countries, especially developed countries, are starting to patronize the use of renewable energy.

Aside from the environmental impacts due to combustion of fossil fuels, the importation cost of such fuels is now increasing. The world's energy needs started to increase, yet the production and sources of fossil fuels are limited. It results to much higher energy cost that affects residential, commercial, and industrial consumers.

That is why development of renewable energy is now at its peak. Developed countries are now starting to use renewable energy and develop related technologies to further enhance its energy production capability. United Kingdom, for instance, is committed to have 10 percent of their electricity generated from renewable energy sources by 2010 and further increasing it in 20 percent by 2020. It is a part of reducing their dependence on imported fossil fuels and at the same time reducing emissions of greenhouse gases that causes drastic climate change.

In addition, not only our economy and environment are benefiting from the renewable energy. Development of renewable energy technologies and expanding its operation also means the creation of new jobs of different field of specialization.

For instance, the British Wind Energy Association (BWEA) estimated that further development of their wind turbines which is situated off-shores has a potential of creating more than 5,000 engineering jobs and some 19,000 jobs for non-technical jobs. Wind power plants need skilled personnel with regards in maintaining its operation. It also includes planning and resource personnel to conduct extensive research on other areas with potential wind energy generation. Non-technical includes communication, marketing, and human resource personnel. In other words, single renewable energy source can actually generate thousands of jobs of different disciplines.

Additional jobs are not only created in these renewable energy power plants but also to the manufacturing industry as well. Take for instance the rapid development of photovoltaic (PV) systems which are now used by different households in the United States. If the demand for such system further increases, manufacturing firm of solar systems will hire additional personnel to increase their production. Other areas of concern such as sales and maintenance services will also yield in hiring more employees. Once renewable energy is further developed, it can generate more than 8,000 jobs of different specialization.

The energy sector further enhances the capability of both technical and non-technical workers in the renewable energy field by giving them seminars and lectures about their work. Trainings are also conducted especially when it comes on new technologies which will be integrated with the present system. This will help people enhance their skills and expertise better in renewable energy.

The federal government also takes part in the creation of renewable energy jobs by awarding grants to different investors who want to take part in the development of the renewable energy field. New big businesses mean creation of new jobs across the country.

Power job forums and job fairs are also initiated to attract more people to devote their skills and expertise in enhancing the capability of these renewable energies to sustain our energy needs.

Renewable energy offers lot of opportunity for us. Now, it offers us the job that we are looking for. Do not hesitate to take the chance. Take part and be one of people who are making living in this world better through renewable energy.

Global Warming And Our Planet

Editor — Thu, 19 Nov 2009 12:17:31 +0000

Global warming is not a ranting of a doomsday-forecasting scientist any more; it has become a stark reality. Every one of us now has some idea about what it is but few are bothered about it. Every body thinks that it is the problem of somebody else in some distant country. But the reality is, it is in our doorstep and will catch up one day or other. So stop passing the buck and take action, now.

The Dangers Of Modern Time

At first, global warming was a natural phenomenon; the greenhouse gases acted as blanket and kept earth from becoming too cold. But as the human society made evolutionary progress, the use of fossil fuels began and then the carbon level in the atmosphere started to increase. Side by side huge forests were cleared to make room for the expanding human population. The repercussions started within the middle of the last century. Scientists started to notice that the surface temperature was getting higher; we were having more storms and cyclonic disturbances than before. But it took 20 more years for people to grasp the implication of such findings.

Now we are staring at a global catastrophe. Rising sea levels have started to threaten tiny island nations like Vanuatu in the Pacific Ocean. Floods have increased, as have devastating hurricanes and cyclones. Elsewhere heat waves are killing thousands and some places are facing prolonged droughts.

The Bleak Future

If this continues, scientists say, within the next 50 to 60 years there will be acute food shortage as the rivers in many food producing regions of eastern Asia will flood fertile land and damage crops. The impact will be felt even in US and Europe, countries that buy the grain from these regions. Malaria and other epidemics will become rampant, killing thousands. Civil unrest will follow plunging the world into total chaos. In the animal world, species after species will become extinct, especially in the marine world, as coral reefs will be destroyed. Phytoplankton, which lies at the bottom of the food chain, will disappear, as seawater will get warmer, taking with it the entire food chain.

It's Not Too Late

If you have started to panic, don't. This is just a prediction. You can change the future if you start to take steps to prevent global warming from getting worse. Knowledge is important; know how you can contribute your part in saving our future. The next time you walk instead of driving for your groceries will be a right step towards a better future. Together we can save our 'Third Rock From The Sun' from total destruction and together we will!

Alternative Energy In Ireland

Editor — Thu, 19 Nov 2009 04:10:31 +0000

The Irish are currently pursuing energy independence and the further development of their robust economy through the implementation of research and development into alternative energy sources. At the time of this writing, nearly 90% of Ireland's energy needs are met through importation-the highest level of foreign product dependence in the nation's entire history. This is a very precarious situation to be in, and the need for developing alternative energy sources in Ireland is sharply perceived. Ireland also seeks to conserve and rejuvenate its naturally beautiful environment and to clean up its atmosphere through the implementation of alternative energy supplies. The European Union has mandated a reduction in sulphuric and nitric oxide emissions for all member nations. Green energy is needed to meet these objectives. Hydroelectric power has been utilized in Ireland in some areas since the 1930s and has been very effective; however, more of it needs to be installed. Ireland also needs to harness the wave power of the Atlantic Ocean, which on its west coast is a potential energy supply that the nation has in great store.

Ireland actually has the potential to become an energy exporter, rather than a nation so heavily dependent on energy importation. This energy potential resides in Ireland's substantial wind, ocean wave, and biomass-producing alternative energy potentials. Ireland could become a supplier of ocean wave-produced electricity and biomass-fueled energy to continental Europe and, as they say, "make a killing". At the present time, Ireland is most closely focused on reaching the point where it can produce 15% of the nation's electricity through wind farms, which the government has set as a national objective to be reached by 2010. But universities, research institutes, and government personnel in Ireland have been saying that the development of ocean wave energy technology would be a true driving force for the nation's economy and one which would greatly help to make Ireland energy independent. A test site for developing wave ocean energy has been established in Ireland, less than two miles off the coast of An Spideal in County Galway Bay. This experimental ocean wave harnessing site is known as "Wavebob". The most energetic waves in the world are located off the West coast of Ireland, says Ireland's Marine Institute CEO Dr. Peter Heffernan. The technology to harness the power of the ocean is only just emerging and Ireland has the chance to become a market leader in this sector. David Taylor, CEO of the Sustainable Energy Initiative,or SEI, tells us that SEI is committed to innovation in the renewable energy sector. Wave energy is a promising new renewable energy resource which could one day make a significant contribution to Ireland's electricity generation mix thereby further reducing our reliance on fossil fuels.

Padraig Walshe, the president of the Irish Farmers Association, tells us that with the closure of the sugar beet industry, an increasing amount of Irish land resources will become available for alternative uses, including bioenergy production. Today, renewable energy sources meet only 2% of Ireland's total energy consumption. From a farming perspective, growing energy crops will only have a viable future if they provide an economic return on investment and labour, and if the prospect of this return is secure into the future. Currently the return from energy crops is marginal and is hampering the development of the industry. Biomass energies need to be further researched by Ireland.

Solar Power A Viable Solution For The Energy Crisis

Editor — Wed, 18 Nov 2009 11:37:31 +0000

All living things need sunlight for their growth. We humans need solar energy for our day-to-day living. You hang your washed wet clothes outside in the sun for drying. The major food products come from plants that use sunlight for making their food. Moreover, the energy resources we use such as coal, oil and natural gas are there because of the solar energy converting plants into fossil fuels over a period of millions of years. In other words, fossil fuel is actually stored sunlight.

Sun is the largest and universally available source of energy. We have been using solar energy in different forms and now we have started harnessing the solar power to meet our day-to-day energy requirements such as heating water, heating buildings and lighting. With advanced research and development in technology for harnessing solar power, generating electricity from solar energy is made possible. Solar power thus produced is safe for the environment and cost effective because there is no expense involved for using sunrays, the only active ingredient for generating solar power.

Solar Energy as a Source of Electricity
Solar energy can be a great source of electricity. Many solar power plants are using solar power for generating electricity, which is then distributed through the power grids. Solar power plants make use of highly curved mirrors to focus the sunlight on the pipe that is down the mirror. The curved mirrors generate extremely high temperatures and boil the water in the pipes to convert water in steam. This steam can further be used to convert run the turbines or generators to produce electricity. The only problem with the solar power plants is that they work only during the day.

Electricity can be produced directly from sunlight by the use of solar cells or photovoltaic cells. The photovoltaic (PV) cells are normally found in appliances like calculators, and watches. The Photovoltaic cells, made of silicon are also used for meeting the energy requirements of spacecrafts orbiting the earth.

The PV cells bring about a chemical reaction in the Sunlight and generate electric charge by molecular activity. This electric charge generates Direct Current (DC). The DC power thus produced could be converted to AC power with the use of an inverter. Alternatively, you can store the DC power in a battery and use it later when you do not have direct sunlight.

A PV module is a group of these solar cells and the further group of PV modules forms an array to generate sufficient power for lighting and other applications. This solar energy produced in this manner can be used for lights and appliances at home. Other uses of solar power include the energy for batteries that used to light roadside billboard during night and for providing electric current to the cars running on the road.

Nuclear Medicine And Breast Cancer

Editor — Sun, 15 Nov 2009 17:12:31 +0000

Nuclear medicine is very helpful in diagnosing breast cancer. Nuclear medicine breast imaging is commonly referred to as Scintimammography. In this method, the patient will be inserted with radioactive dye, which will react differently to normal tissues and cancer tissues. This article narrates the relationship between Nuclear medicine and breast cancer.

Scintimammography is far better than mammography or ultrasound, since it can diagnose multiple tumors. Likewise, mammography can help in detecting cancer growth in one particular area only.

The current radioisotope recognized by Food and Drug Administration for detecting breast cancer growth is technetium -99. This will be inserted in patient's vein through intravenous needle.

Generally, women who have any abnormalities in breast should go for this scan. Women who have dense breast tissues also require nuclear medicine scanning. Women whose breast is removed due to cancer growth require scanning to detect for any further growth.

A research shows that scintimammography is successful in diagnosing large abnormalities in the breast. But for small abnormalities, it is successful in only 40 to 60% of the cases.

Nuclear medicine imaging is sometimes treated with sentinel lymph node biopsy to detect whether the lymph nodes have cancer growth.

How to perform nuclear medicine imaging tests for detecting breast cancer?

Performing nuclear medicine imaging tests for detecting breast cancer requires a lengthy procedure. The gamma camera will be fixed above the table. The patient should wear comfortable clothes without any metal. Then the specialist will insert technetium-99 into the vein. The dye will be absorbed by normal tissues in small quantity and in larger amount by cancer tissues. The reactions will be taken as images by gamma camera. The gamma camera will capture the images of patient's breast in different angles in order to detect multiple tumors.

In fact, nuclear medicine will help in predicting breast cancer also. Therefore, it helps in fighting and preventing the disease. The fast and accurate images shown by nuclear medicine will allow the doctor to start the treatment immediately. It is safe for patients with allergic reactions also. It is however time consuming. However, new technologies are being invented to reduce the time taken by this method.

Research On Global Warming

Editor — Fri, 13 Nov 2009 01:32:31 +0000

Research is constantly being done on global warming. The research is being done by studying statistics and by going directly to the source. Various scientists are coming up with different answers to the most basic questions about global warming.

Some scientists studying global warming in the Arctic have discovered thinning sea ice near the northern reaches of Alaska. The summer of 2007 showed the least sea ice since sea ice was first tracked in 1979. Scientists participating in the Woods Hole Oceanographic Institution's Gyre Exploration Project cruised aboard the Canadian Coast Guard's ship, the Icebreaker, to see the effects of global warming for themselves.

When they reached the area where ice would usually be the thickest and heaviest, the ship sailed right through. When they did see ice, it was in a state of disintegration because of global warming. Most of the ice remaining was young ice, which is more vulnerable to thaw. The scientists took their data home to analyze during the colder months.

Another group, with the Arctic Modeling Group and the IJIS Research Group, set sail along the Alaskan coast in the Chukchi Sea. Their mission was to study different variables of the ocean water that might affect phytoplankton. They found that the water was warmer than the satellite statistics. The satellite showed 10 degrees Celsius, while their measurements showed 14 degrees Celsius. This is an example of global warming.

One study was done linking the Russian peat bogs with global warming. The bogs produce a large amount of methane gas. According to carbon dating that was done, this has been the case since the last ice age. Since methane is one of the greenhouse gases, this impacts global warming.

However, the studies also show that the peat bogs absorb carbon dioxide at an impressive rate. They contain the largest carbon stores on the planet. If the peat bogs dry up due to global warming, they would release this carbon dioxide into the air. The trade-off of carbon dioxide for methane would not be a good one, since methane stays in the atmosphere a shorter time.

Researchers at Scripps Institution of Oceanography have been busy proving that humans bear some culpability for the climate change in the oceans. They have done this both by observing and noting evidence, and by constructing computer models.

The computer models are based on the evidence that they do have, so they are thought to be quite accurate. With all the data in place, the evidence seems to point to definite global warming events. It also makes it clear that humans have played a part in causing this phenomenon.

An MIT professor has studied the effects of warming waters on hurricanes over the last fifty years. He studied statistics from past storms and generated computer models to test his theory. His specialty is meteorology, so his take on global warming is of interest. He found that the hurricanes have indeed been getting stronger since 1970.

Research is important to the field of global warming studies. It is only by knowing the problem in precise detail that people can adequately confront it.

Forecasting The Future Of Global Warming

Editor — Thu, 12 Nov 2009 14:20:31 +0000

If people knew what kind of future global warming would actually bring, they would likely want to do more to help the environment. The problem is that predicting the future of global warming is a very complex task. Just as the local weatherman does not always get it right, neither can the predictor of global warming.

Some of the difficulties inherent in forecasting future global warming have to do with those same factors that every meteorologist faces. Winds can cool the air or warm it depending on the direction they take. Cloud cover can cool a hot day. Air masses move in to cause storms as cool fronts and warm fronts are generated.

Ocean currents can change the temperature of the land on which they strike. The earth's atmosphere is constantly in a cycle of evaporation and precipitation. The nature of this cycle will affect global warming. At the same time, all these variables will be affected by global warming in return.

It is hard to predict the future of global warming when little is known about the actions people will take to prevent it, or not. Underdeveloped countries will strive towards development. Generally in the past this has meant using the cheapest industrial equipment available, even if it is the most polluting. However, these countries may decide to put emphasis on preventing global warming instead.

It is not known at this time how fast the population of the world will grow. Statisticians can make educated guesses, but a number of factors can always change the dynamics of population growth. Biological factors, as well as governmental policies and economics can all play a part. The more people on earth, the greater the chance for global warming.

Fuel efficient cars have already been developed, and the research continues to make them even better. There is a question, though, as to whether the people of the world will embrace these technologies. At least at first, cost might prevent poor people from having hybrid or other fuel efficient cars. The extent to which this technology is made available to all people will affect the amount of global warming that can be expected.

As ice melts in the Polar Regions, the ocean temperatures are affected. This is due to global warming. However, it also can perpetuate global warming by changing the evaporation rates of the sea. The courses and speeds of the oceans currents cannot be predicted with accuracy, but they will have an affect on global warming.

The proliferation of dark areas can lead to global warming. The trouble with using this fact to predict global warming is that it is not known how many dark areas will be uncovered by melting ice. As long as there is enough ice to maintain a light color, a good deal of the heat will be reflected off into the atmosphere.

While it is nearly impossible to predict the future of global warming with complete accuracy, it is good to explore the subject. It is important to estimate the damage that will be caused by global warming in order to make the concept of global warming more concrete.

Closed Field Loop

Editor — Thu, 12 Nov 2009 05:33:31 +0000

Geothermal heating process is widely used from Roman times as it is way of heating buildings. By utilizing sources of hot water and hot steams which exist near the earth's surface. Where such resources of geothermal are available, it is possible to distributes hot water or steam to multiple buildings. This technique is used throughout the world in location such as Reykjavik, Iceland and Boise, Idaho, USA which is known as District Heating.

Now days the term Geothermal heating has frequently been used to refer to the heating and cooling that can be achieved through the use of Geothermal Heat Pump.

Closed Loop System in which the fluid circulates through the loops fields' pipes. There is no correct interaction between the fluid and the earth. There is heat transfer only across the pipe. There are different kind of closed loop such as vertical, horizontal, slinky and Pond.

Vertical Closed Loop Field: This loop is composed of pipes that run vertically in the ground. Where hole is bored in the ground, normally 150 to 250 feet deep in to the ground with a U shaped loop placed inside the hole. A vertical loop being used when there is a limited square footage of land available.

Horizontal Closed Loop: This loop is composed of pipes that run horizontally in the ground. A long trench being dug which is deeper than the frost line, where dug and U shaped coils are placed horizontally inside the same trench. A trench which is made for horizontal loop is similar to slinky loop field. The width of loop strictly depends on the how many loops installed. Horizontal loop fields are very common. Horizontal loop are economical if there is adequate land available.

Slinky Closed Loop: This loop field is also in Horizontal orientation, in this pipes are overlay each other. Very easy way of picturing Slinky fields is to imagine holding a slinky on the top and bottom with your hand and then move your hands in opposite directions. Slinky Closed Loop being used when there is not sufficient space to install horizontal system.

Closed pond loop: Closed Looping has been becoming increasingly popular. It is achieved by placing coils of pipe at the bottom of an appropriately sized pond or water source. Closed Loops system has been promoted by the DNR (Department of Natural Resources); who support geothermal systems and the use of ponds for geothermal systems. Closed Loop field is for a 12-ton system, it is unusually large for most residential applications. A pond loop is extremely similar to a slinky loop, except that it is attached to a frame and located in a body of water versus soil.