Posted by admin on April 13th, 2010 — Posted in Science Tips
You can now get one for free. As a matter of fact, you can get several for free if you’re planning on making more than one wind power system. A DC motor will cost you around $30 which will probably be the most expensive purchase you have to make. A body can be free or very cheap. The blades, hub, and battery are all child’s play too. This is only true if you have the right plans of course. You can fashion the blades for your wind power system the old and expensive way or you can find plans that give you detailed instruction of how to make them out of sturdy PVC pipe which is much easier to work with and takes a lot less time. The process is simple and anyone can build a windmill, if good instructions are followed. The key is good plans. The third reason why wind power for homes is exploding in popularity is because of how much money a windmill can save you on your bills every month! If done right and built correctly, a windmill can get rid of most of the power bill you dread paying every month. Some people even eliminate the bill totally!These are just a few things to think about when looking into wind power for homes. This article will point out the huge contribution of these plans and give you a few tips. The older plans used to be needlessly confusing in the way they explained what needs to be done and in the way the actual designs of the windmill are drawn out. Modern diy wind power plans are a great help to people who don’t want to take the time to decipher the annoying complexity and still benefit from a cheap and powerful electrical source. Nowadays, it’s very possible to build a DIY wind power system that will cut about 80% off your electric bill without spending a dime over $200.wind turbines
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Posted by admin on March 22nd, 2010 — Posted in Science Tips
DIY guides have been put on the market so that anyone who is so inclined can create their own windmills and solar cells for under $200.You may be thinking this project isn’t for you. Quite the contrary, these guides have been designed so that anyone who wishes to can create their own green renewable energy harnessing tools, regardless of your level or lack of skill. Using step by step illustrated directions, even a child could put their own windmills and solar cells together. All these fusion of elements actually generates electricity. It is important to note that if there are more solar cells, then more electricity would be produced. These solar cells mostly work best under direct sunlight and it is also most favorable if you would place the solar panel far away from buildings, trees or any other barriers. Just be cautious that there would be no shadow effects on your solar panel to make it work. Depending on the height of the building, the number of wind blades that could be installed will correspondingly increase. The wind blades could then be enclosed in a grilled set-up to prevent birds from getting chopped by the blade, and also avoiding possible accident in case the blades are accidentally dismantled from the windmill. These are not things you want in your house. Besides creating a health hazard, the heat in your attic travels down through your house, warming every room. Have you ever noticed that during an unusually cool summer day your house is still brutally hot? That’s because the stifling air in your attic has nowhere to go but down.Source: Second Hand Wind Turbines
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Posted by admin on October 26th, 2009 — Posted in Education + Training, Mathematics + More, Science Tips
Algebra is the one which is used for getting our everyday tasks completed. We are a kind that forever keeps counting, measuring, dividing, and multiplying.
The History
Invented in the first millennium BC, algebra was first invented in the middle-east. The ancient brains applied algebra for solving day-to-day problems while the Asian or rather Chinese counterpart applied geometry for the same function
What is the Nature of Algebra?
Although you may see algebra as solving formulas , simplifying rational expressions, and converting fractions to decimals, algebra is one of the sciences that has the to the highest degree of applicability when it comes to practice. Through a systematic foundation of this knowledge (Algebra I, Algebra II, and College Algebra), the education system makes us mindful of the mathematical tools employed for daily life.
Algebra I
The students are given an intro in this study course to numbers, solving linear equations, graphing systems of linear equations, graphing linear inequalities, laws of exponents, resolving linear equations, and factoring polynomials. This course places the foundation for the rest of the advanced algebra waiting to be explored in the next two stages.
If a student is keen on studying algebra down to its roots, then this is the most important study course.
Algebra II
Once the students are competent with Algebra I constructs, Algebra II can be taken up for broadening the spectrum of this marvelous segment of mathematics. There are two aspects of Algebra II; emphasizing more on the topics learned in Algebra I and foundation to new concepts. When it comes to the new introductions, adding and subtracting matrices, quadratic functions, solving exponential equations, probability and statistics are noteworthy.
In this plane of study, students are obliged to stress more on the kernel concepts.
College Algebra
This is one of the most crucial levels of learning Algebra with nearly no new topic presented. I assume it is quite ironic, but this is what maths is. Do you know why mathematics is called the queen of all scientific disciplines ? That’s because of the unforeseeable nature of mathematics!
How to get aid on Algebra?
There are many methods and tools available for getting assistance for Algebra subject areas. The first and the foremost key source is an Algebra instructor from whom you can get help and aid.
In addition to the above methods, pupils should never undervalue the use of Algebra software program that is particularly designed to solve algebraic problems with illustrative steps. This software program really brings insight in to Algebraic operations of solving equations , by providing pupils to simply watch and learn through exercises.
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Posted by admin on September 22nd, 2009 — Posted in Science Tips
The energy crisis has already prompted a war, Wind Power, Sun Power, Tidal Power and now Bio Fuel Power, that is if you believe conspiracy theorists and the media. There might be some truth to this matter, at least if we take a closer look at the dynamics of supply and demand of fuel all over the world. What Is BioFuel? Biofuel is an energy source derived from recently deceased biological matter while fossil fuel (i.e. raw material for gasoline, kerosene, diesel and etc.). In theory biofuel can be derived from any carbonated source, but in practice it usually comes from plants like corn, palm, sugar cane, wheat, jatropha and algae. These feedstock sources are popular for the two most popular end products which are used for cars and machineries: bioethanol and biodiesel. Bioethanol comes from either sugar crops or fermented starch. Biofuel does not just come from plant crops, although a margin of them does. Biomass Since bio fuel maybe gaseous, liquid or solid fuel other categories also apply. Way up in Tibetan mountains biofuel have been in use for hundreds of years. Tibetans use manure from their goats, donkeys, horses and cows as a substitute for wood. Animal waste are common pollutants, converting it into useful energy helps eliminate its negative effects. Biowaste Other alternative fuel resources are used oils. People eat, and thousands and millions of gallons of used oils are thrown down the drain which leads to rivers and oceans. Oil does not decompose ergo recycling and converting it into biofuel is in order. In addition, landfills maybe of some use after all. Landfills emanates polluting gas which contain methane, a combustible gas which is the primary content of the gas we use for cooking, and heat. Liquid biofuels are getting generous media attention because of the worsening air conditions in severely populated areas. Cars produce almost 60% of our air pollution. Vehicles need highly combustible energy so that it will function. Liquids and gases are easier to handle because it can be contained and pumped, so handling is less expensive. Biofuel And Cars There are two types of biofuels that maybe used in cars: biodiesel and bioethanol. Biofuel is very popular in Europe. In that part of the world most car manufacturers make vehicles with diesel engines, so using biodiesel instead of pure diesel is a relatively easy transition. If a car is unmodified owners may blend up to 20% biodiesel with regular diesel. Biodiesel comes from fats and used oils, these by products are the processed through what’s transesterification. Transestirification is a chemical reaction produced by adding an acid base to the fats. The result is biodiesel. Bioalcohol is produced when starch, sugar and cellulose are fermented. The results are three popular types of alcohols: ethanol, butanol and propanol. Among the three it is argued that either ethanol or biobutanol maybe used in gasoline running cars, but it seems that biobutanol won the bid because it now called biogasoline.
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Posted by admin on July 9th, 2009 — Posted in Health Hub, Science Tips
Oncologists and other cancer doctors determine what course of treatment to administer for every patient. The options are endless. There exists no regular treatment course for pleural mesothelioma sufferers. This is due to the cancers high mortality rate, rareness, low treatment success rate, and small number of studies to provide meaningful statistics.
The prospects for mesothelioma patients have been grim, but doctors have recently made progress. Customary treatments for cancer are surgery (removing the tumor and the tissue that surrounds it), radiation (killing the cancerous cells with radiation), and chemotherapy (poisoning the cancerous cells.) There are problems with all three. Patients with mesothelioma have not responded well to traditional radiation therapy. In hopes to lessen damage to healthy tissue, researches are studying ways to aim radiation right at the tumor.
Surgery removes the mesothelial tissue around the tumor. This surgery is extensive and it is not clear how much the patient benefits. The usual chemotherapy cocktails effective on other cancers are not effective on mesothelioma, and different mixtures of these drugs have not been successful. Similar to radiation, focus in research is focusing on treating the physical location of the tumor with emphasis on the pleural cavity.
Many advanced techniques in cancer treatment are tried on mesothelioma patients because of its high fatality rate. Such treatments include anti-angiogenesis drugs like thalidomide and biologic therapies agent interleukin 2. Pemetrexed (Alimta) is a new drug that has shown results in extending life.
Before acting, oncologists review the stage of mesothelioma, position of the tumor, and age and health status of the patient. Two exotic ways of attacking mesothelioma are gene therapy and photodynamic therapy. Patients afflicted with mesothelioma are benefitting in these clinical trials.
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Posted by admin on July 6th, 2009 — Posted in Health Hub, School of Nutrition, Science Tips
A while ago my buddy and I were watching a TV show about reversitol. They mentioned something about how French individuals are staying alive longer even though they have what you would consider unhealthy diets. Doctors have identified something called reversitol. Apparently with this type of find, there are now a ton of reversitol supplements out there. I read quite a few websites with all forms of reversitol surveys. I decided to go with the word on the street and order two different reversitol nutritional supplements, stay tuned for a follow up reversitol review.
The studies supporting red wine suggest antioxidants in red wine called polyphenols help protect the lining of blood vessels in your heart. These antioxidants come in two main forms: flavonoids and nonflavonoids.
Flavonoids. These antioxidants are found in a variety of foods, including oranges, grape juice, apples, onions, tea and cocoa. Other types of alcohol, such as white wine and beer, contain small amounts, too, but red wine has higher levels.
Nonflavonoids. These antioxidants found in red wine have recently been of particular interest because they appear to help prevent arteries from becoming clogged with fatty blockages. However, these studies mostly involved mice ? not humans. Reversitol is the nonflavonoid that’s received the most attention from researchers.
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Posted by admin on April 11th, 2009 — Posted in Education + Training, Science Tips, Tuition Parlor
Gaining a qualification in this discipline which is commonly thought to be the broadest of any of the engineering disciplines an extended selection of mechanical engineering jobs are sure to be available at short notice. A broad range of industrial programs are available, for example power and heating systems, cooling system design, and even the planning and maintenance of air-conditoning; car design, plant engineering science; piping and pressurized systems. Vacancies may also include roles in technical sales, clerical or supervisory positions, further alternatives could be production processes in agriculture or manufacturing.
How much money can a mechanical engineer earn?
Data from a survey by the National Association of Colleges and Employers, mechanical engineering positions may provide a salary going from $40K annually to $93,000, depending on your education and naturally experience. The branch of engineering science which have selected will additionally impact any salary. How can I get a role in my field of choice?
It is key to put some effort into a well-rounded and current resume. Once you have produced a CV featuring your qualifications, you’re ready to get stuck in and begin searching. Where can you find jobs in the industry?
Attending job fairs: The engineering science faculty in your university should hold all the information about local job fairs. You will get a tremendous prospect to introduce yourself to the people recruiting. Internships: Your college will help you with obtaining an appropriate placement as an intern. Some firms that employ interns will regularly take on students after graduation, internships can likewise have a marked influence on the earnings you can expect. Mechanical engineering groups: Participating in groups and going to meetings opens up the opportunity of not only finding out much more about engineering, but also gives you a chance to hook up.
Papers are a worthwhile resource: Engineering firms place adverts in the newspapers in the same way as any other firm. Study the newspapers regularly; post your cv; follow through. The key is perseverance. Utilize the world wide web: Find the major recruiting sites on the web and post a curriculum vitae. Put together a profile on the LinkedIn site and network. Harness the might of the web to speed up job searching.
Persistence and networking are significant in discovering a job. Make sure your details and cv circulating; do not omit following through all your leads; utilize the internet for making new contacts and submit a profile. These actions can help you find the position you really want.
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Posted by admin on November 17th, 2008 — Posted in School of Home Improvement, Science Tips
When you install your wind machine, you are also going to have to decide whether you are going to be on or off-grid. Ask yourself if you are willing to be free of your electric supplier. Going off-grid also means that once your wind turbine is in place, you are going to need a back-up system for days with light or no wind and to ensure you have uninterrupted electrical power at the night. So you will need to have to have a battery, an inverter and a generator.
Since typical wind turbines aren’t anything small, like the solar panels on a rooftop, the space in which you decide to install the tower needs to be large; perhaps an acre or so of land is needed. As you can see, if you have grouchy neighbors, they may not appreciate a turbine that is just a hop, skip and jump away from their property line.
Some people just don’t appreciate a good neighbor who is trying to go green and save money, so you really have to take into consideration your neighbor’s feelings, when it comes to installing a wind turbine tower. You will also need to check whether the wind supply will affect your neighbors when it is blowing or spinning.
Another important factor to take into consideration is the size of the apparatus, the prevailing wind and the amount of electricity that will be produced. A standard wind turbine isn’t a small object. For residential use, your turbine should be at least 4-43 feet in diameter, and 60-120 feet in height. When constructed, it will be the tallest, and perhaps noisiest, construction in your community, or on your block. One thing’s for sure, if you like being different; this device will have you and your home standing out among the rest of the community.
These tall standing wind machines aren’t the only type of turbines available for residential use, there are other designs that are more practical and functional, and more notably, much smaller in size. They can be placed on your rooftop without looking bulky or awkward.
The size of your attic will determine how many of these small, metal circular objects you will need. They look something like a metal baker or chef’s hat. It is much different in size and shape from the standard, free-standing, tower wind turbine and much cheaper in the long run.
You can purchase these in kit form as well and you can fit one or more on your roof by fastening them down with some head screws. The wind machine kits usually come with handy instructions and will save you a lot of headaches.
Of course, you are going to need other tools and material for this project, such as a drill driver, caulking, nails, hammer, and a level - just to get you started.
Enjoy your wind power system!
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Posted by admin on March 30th, 2008 — Posted in Science Tips
This is a list of countries with proven reachable oil reserves in billions of barrels, and is a rough estimate based on the ability to recover the oil by current technological and economical means.
Saudi Arabia - 262
Saudi Arabia is the largest exporter of petroleum in the world, and plays a leading role in OPEC, which stands for The Organization of the Petroleum Exporting Countries; an international organization made up of eleven oil producing nations.
Canada - 180
Canada’s Athabasca Oil Sands Project is what puts Canada on the map in this list. Current surface mining techniques and in-situ methods to extract bitumen from the oil sands make for an overwhelmingly positive future for Canada’s oil industry.
Iran - 126
Iran’s economy relies heavily on oil export revenues, and as oil prices rise, Iran’s economy improves. Iran is in the process of diversifying by investing some of it’s oil reserves into other areas, such as petrochemicals; and is in the process of creating more favorable climates for foreign investment.
Iraq - 115
According to oil industry experts, new exploration may raise Iraq’s reserves up to 300 billion barrels. This has created global foreign interest to re-establish within the country. The US, UK, France, China, Russia, and Japan all vie for major concessions complicated by unrest in the post-Saddam Hussein era.
Kuwait - 102
Though the loss has been estimated at 2% of total oil reserves, Kuwait has recovered fully from the invasion of Iraq. The KPC, or Kuwait Petroleum Corporation, has grown to become one of the ten largest oil companies in the world.
U.A.E. - 98
At one time an underdeveloped region, by 1985 the UAE had the highest per capita income in the world. The largest areas of petroleum production occur in two of the seven constituent parts of the UAE; these being Dubai and Abu Dhabi. Abu Dhabi qualifies as a oil state in the same sense as Kuwait.
Venezuela - 77
Venezuela is the fifth largest oil exporter in the world, and a founding member of OPEC. Oil output has been hampered at times due to protest and controversy, but the country remains an active contributor to the world supply of oil.
Russia - 60
Russia has the world’s largest natural gas reserves, the second largest coal reserves, and the eighth largest oil reserves. The country is the world’s largest exporter of natural gas and the second largest oil exporter. Reorganization of the Russian Energy Sector has shown improvements in the industry over the last few years.
Libya - 39
Though sanctions against Libya had been removed by United States President Bush and also by The United Nations, some Libyan authorities caution foreign optimism about prospects in the country’s socialist driven economy. Nonetheless, the removal of sanctions allows Libya to drive forward.
Nigeria - 35
Nigeria is the largest oil producer in Africa, and is a major oil supplier to both the United States and Western Europe. Proven oil reserves are expected to be expanded to 40 billion barrels by the year 2010.
About the Author
Austin Culley is the Vice President of Oil-Net.Com Inc.
http://www.oil-net.com
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