Posted on May 30th, 2010 — in Science Stuff
Millions of homeowners are recognizing the low cost and ease of building one on their own and the fad is taking off. Aside from saving money on your monthly electric bill, having your own home wind turbine generator system is an environmentally manner of gathering, converting and using wind to create electricity. While you are saving money, you will also be satisfied in knowing that you are saving the planet. For these reasons alone, it is no reason so many people are switching to home wind turbine systems.Rising oil and coal prices lead to higher electricity prices, which lead to the general will to save energy which will also save the environment. Unfortunately, it is not easy to accomplish all these tasks together without doing anything. But when doing something, like installing wind turbines, devices that produce energy from the wind, it all becomes easy. The rising electricity bill is a big concern these days with expensive oil. Fortunately, wind turbines do not require any oil or other fuel to operate, and they generate free electricity. Since the energy from wind turbines powers your home appliances, you need less electricity from the electric company.They cost substantially cheaper than commercial wind turbines (that by the way can fetch at least $3,000). But are these home made versions as efficient in delivering free electricity for the home?The wind turbines that you can build from home are not designed to produce huge megawatts of electricity for your home. Most times, these home made wind energy systems suffice in supplying surplus electricity to power some of your home appliances, like your TV, computer, microwave, etc. The generators used in these do it yourself kits are usually recycled car alternators, so you can imagine the low power output that it produces. wind turbines
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Posted on May 17th, 2010 — in Science Stuff
They are also slightly tilted in the upward direction. Downwind turbines are also built; however, their efficiency is reduced in heavy winds due to the fatigue failures. Vertical-axis Wind Turbine The main rotor shaft is vertically positioned in a vertical-axis turbine. Due to the orientation of the shaft this turbine can work efficiently even if its not facing the wind. Wind from different directions is easily and efficiently utilized by the vertical-axis wind turbines. DIY home wind turbines are nothing close to the commercially and professionally installed wind turbines that are available to buy, they are a great alternative, and can save you a bunch of money to retrieve the investment at the beginning. Not only that, but you will learn a lot about how much power, etc, you will get from your home energy systems by seeing it in action. The best way to figure out how to build your own DIY home turbine, is to get a DIY kit off the Internet. Thats what thousands of people are doing at the moment, as it is a great way to get the information in a complete and well formulated guide.This range of turbines cost slightly lower than the larger and more powerful versions. But are they effective enough to help you save on your power bills?This is the question bugging most home owners who are shopping around for wind turbines for their home use. It is a dilemma to decide between spending a huge amount of money for a proven and effective wind energy system and buying a slightly cheaper model that can barely power all the electrical appliances in their home. Looking at the specification sheet for most of these home wind turbines, they require a considerable amount of wind speed in order to produce an optimum power output for you to, say, use the television set. wind turbines
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Posted on May 10th, 2010 — in Education Online, Science Stuff, University of Mathematics
Algebra is one of the most fundamental branches of maths that is often introduced to pupils in Jr. High. As a matter of fact, many pupils find algebra as a hard subject area to understand. It is really an advanced form of mathematics that takes the student through a study of structure, relation and quantity.
The Base Methods
In algebra you will frequently hear the term like variables. This is often used when adding and subtracting radicals. When adding or subtracting radicals the radicals must be the same order before you add or subtract them.
As a method of finding the least common denominator by listing the multiples of each denominator and dividing by 2,3,4, and so on. After that you should look at the smallest number. An example is multiples of 5 are 10, 15, 20, 30. Multiples of 6 are 12, 18, 24, 30, and multiples of 15 are 30, 45, 60. As you can see 30 is the smallest number that appears in the list of multiples.
You can easily reduce a fraction by finding a common factor in the numerator and denominator. A common factor is going to be a number that will equally divide into both numbers. An example would be 3 is a common factor for 6 and 12. Three will equally divide into 6 and into 12. You could also look at 2 being a common factor for 4 and 14. You will repeat this same process until there are no common factors left. You can also do this same process by finding the GCF of both the numerator and the denominator. You will divide the numerator and the denominator by the greatest common factor instead of the common factor.
How to Face Challenges in Algebra?
If you find yourself in hassle with algebra and can’t seem to find the solution you need. In this case, an algebra problem solver, typically a software program, will be an ideal answer for getting help. With an algebra problem solver you can simply input the figures related to the question and your problem will be solved instantly. Having access to an algebra problem solver can mean the difference in passing or failing. Most pupils cannot afford a tutor and they might not be available when you need them at times. With an algebra solver you will have access to the answers you need, anytime you need them.
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Posted on March 16th, 2010 — in Education Online, Science Stuff, University of Mathematics
Algebra distinguishes relationships between things that change over time. These variables include things like the relationship between supply of an object and its price. Maths is not an easy subject for almost all students. Many software applications are available with a mixed bag of topic presentation so students of any intellect level can find the way that works for him/her. These applications also facilitates students to understand utility of Algebra in real life as well as in industry solutions. Broader functions employed in algebra include Graphing complex inequalities , Solving compound inequalities , Solving quadratic inequalities , Adding and Subtracting matrices etc.
Although algebra is an easy to follow course of study, students may face a lot of trouble if they do not practice the basic concepts hard enough. This makes initial math skills important to help students successfully progress from algebra and go on into graduate math with authority.
How to Succeed in Algebra
The algebra software on offer in the market today offer far more useful guidelines and help than what is included in formal textbooks, such as homework help, interactive tutorials, games and a worksheet tool or graphing calculator. The most useful software have all of these components - ease of use and covering of all the topics.
The instructing tools are always useful when methods like text, audio, animation, video and games are put in to use. All the important topics should also be covered from Pre-Algebra through Algebra II. Important topics normally include: Finding complement of an angle, composition of functions, finding degree of polynomial, determine if line is , determine if line is parallel, determine if parabola opens up, determine if relation is a functions etc.
How to Utilize Algebra Software
Some algebraic software shows results only, while other (much more suitable for elementary algebra) show all the steps as well as explanations of mathematical concepts that are in use. For students, ease of use of the software is the number one requirement. Thus, the software ought to be bundled with value added components like high quality and timely user assistance, embedded help options, and simply explained math tutorials.
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Posted on February 13th, 2010 — in Education Online, Science Stuff, University of Mathematics
What is Algebra?
It is an domain of mathematics that use letters in place of numbers to derive results for a given situation. It is this abstraction that often frightens many and thrills some. Algebra topics range from working with fractions to factoring binomials all the way to finding the inverse of a matrix. Most individuals start to learn Algebra by adding, subtracting, reducing and simplifying algebraic expressions. later on, they would move on to more advanced stages of solving algebraic equations using the greatest common factors and converting fractions in to decimals.
Exponents and Radicals and Graphing Oh My!
There are many advanced topics. To start off with there are powers. A power is the tiny number placed as superscript to a number or algebraic expression. In this example (x + y)3 where the 3 is the power and denotes the power to which that number is raised. The above algebraic expression is read, x plus y to the third power. In working with powers you can add, subtract, multiple or divide them. You can work with rational and negative exponents. If that isn’t enough to make your head spin, then you can move on to radicals. A radical, simply put, is the reversing of an power. Radical expressions are denoted by the symbol “V” and when placed next to number 4, it is read as square root of 4, which is equal to 2. The contrasting exponential equation is 2^2 which is read, 2 to the 2nd power, and equals 4. Equally with exponents, radical expressions can be added, subtracted, multiplied and divided. Radicals can be converted into powers and exponents back into roots. If you find that exponents and roots don’t really stir your interest, you could move on to graphing. Start with graphing straight lines and determining if the line is horizontal or vertical or something else. Does the line have an x-intercept or a y-intercept? Can you find the slope of the line? you master the mathematical art of graphing, you will come across a whole new world full of parabolas and hyperbolas.
Help is Available
If you are learning algebra and this all seems a little too much, don’t fret. There are many resources out there that can help you master radical inequalities, quadratic formulas and polynomials. Look for math tutors or software packages that will walk you through step-by-step process on how to solve any problem. You can also use algebra calculators or algebra solvers. any of these tools can help you become an algebra guru in very little time.
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Posted on February 11th, 2010 — in Best Health, Medical Tips + More, Science Stuff
JWH is an analgesic. It is a member of the amino alkyl indole class. JWH-018 can act as a cannabinoid agonist towards the CB1 and CB2 receptors. It has been found to produce effects similar to that of main psychoactive substance found in the cannabis plant with a longer continuance of action.
The abbreviation J.W.H. stands for John W. Huffman who is considered the inventor of JWH-018. It is a chemical first synthesized in 1995 in a university research laboratory in the US. John W Huffman earned his BS from Northwestern University and his AM and PhD from Harvard. He began his academic career at Georgia Institute of Technology (1957-60) and joined Clemson as assistant professor in 1960. He was an NSF Predoctoral Fellow at Harvard and received an NIH Career Development Award (1965-70). He was a visiting professor at Colorado State University (1982). The principal emphasis in Dr. Huffman’s research group is on the synthesis of analogues and metabolites of delta-9-tetrahydrocannabinol THC), the principal active component of marijuana. John W. Huffman has published dozen of articles about cannabinoids.
Although toxicity reports are not completed by an independant research laboratory, scientist state they are willing to trust that it is not toxic.
More info about JWH-018 toxicity reports can be found at Mindfully
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Posted on September 24th, 2009 — in Science Stuff
Today climate change is a reality that is acknowledge by even the most doubtful of skeptics. The warmer temperatures in areas where its supposed to be cool, scorching summers, and bone chilling winter have become a pattern that people cannot simply ignore. What The War About? Funny enough it seems that people are getting desperate and all are turning to bio-fuel like it’s the savior of all mankind. So what is bio-fuel? Bio-fuel is any gaseous, solid, or liquid material derived from biological materials. The argument ensues when people talk of the future. Bio-fuel’s raw materials are usually agricultural crops that are made to undergo fermentation and certain processes in order to produce bio-fuel. Energy is important. More people then ever produce their own energy and selling electricity back to the grid. The Problem Who is the world’s largest oil consumer? Those with the highest number of vehicles running their roads, countries like the US, England and generally most of the European nations. When you think about it bio-fuel is made from corn, sugarcane, palm oil, vegetable oil, and etc; where do these agricultural crops come from? Third World Countries. In Mexico they have this “tortilla crisis”. Corn which is the basic ingredient of tortilla is now sold five times the price it used to be marketed for. The reason for the inflated prices? The demand of bio-fuel in highly developed countries has severely altered the business people’s sense of profit. Why sell for a dollar when you can for 5 because the demand is now higher. Who Suffers? The first world countries will have to export goods from the third world countries to fuel their increasing demand for energy. The third world countries are usually tropical ones located near the equator, hence a higher crop growth of corn, and all those needed to manufacture bio-fuel; but for these countries corn is food, so is sugar cane. For the first world to survive the t poorer countries must either starve in hunger or break their back working to be able to afford the price hikes of the most basic of all commodities: food. A Compromise So what should we do? We need to address the problems of the environment and pollution, but it is also not right that to solve a problem we must create one. Think about it if the agricultural countries go into decline because its people can’t afford food then who will till the land to supply the giants with endless bio-fuel? Sustainable energy is geared to sustain life, not make it harder. Since the crops needed for the production of bio-fuel can only survive in tropical countries then the governments of the more well off countries will have to invest in the agricultural countries to supply their own demand. These crops must be independent from those for local consumers. Stringent rules governing pricing and distribution must be implemented to further protect the source of the energy. Sustainable power means the world working hand in hand to create a better way of life for the future.
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Posted on August 2nd, 2009 — in Education Online, Science Stuff, University of Mathematics
Algebra is a primary branch in Mathematics, which deals with equations, inequalities, fractions and expressions. Being one of the leading arms of mathematics, it forms an whole part of basic education. Concepts in combinatorial mathematics, variables, polynomials and factorization are the main areas which algebra deals with. As you move along advance algebraic equations, you will deal with symbols and set theories which allows you to compute unknown values based on predetermined facts.
Algebra and its Roots of Geometry
Geometry brings into play the complete use of algebra to graph a circle, a hyperbola, a parabola or even finding the focus of a hyperbola. From the very basic computations of computing the midpoint of a line or the radius of a circle to the more complex operations of determining if a parabola opens down or to compute its directrix, algebra makes its presence visible to a high level of purpose in the field of geometry.
Solving Exponents and Equations in Algebra
Equipped with knowledge on how to play around with algebra, solving equations involving linear, quadratic or radicals will be no issue. Using algebraic expressions one can solve inequalities and even graph systems of fractional equations and complex inequalities. If exponents have been messing up your head, a careful grasp of algebraic expressions will relieve the pain allowing you to work through it easily. Algebra works with the Laws of exponents by facilitating one to add, subtract, divide and multiply expressions with ease and self-confidence.
Simplify Fractions and Polynomials - Try Algebra Calculators
Whether you have problems in solving, comparing or converting fractions, algebra solvers can work their magic for you. The modern software that supports solving algebraic expressions are able to solve any math problem easily and in no time. Complex matrix problems like inverse matrix and other matrix operations could be solved using algebraic calculators. Thanks to the algebraic solvers, simplifying algebraic expressions, which may involve factoring binomials or involves determination of the LCM, has now been made a very easy task.
Professional Help at an Arm’s Reach
Students can get professional help from private instructors who will provide you with a step-by-step answer for your problems. Math tutors are at your disposition for those hard problems which can get you easily bugged. The math solver applications that is widely available in today’s market provide countless options to suit a student’s every need. From calculators that cater to a specific type of algebra to ones that scan the entire scope of the subject, you will find a complete answer.
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Posted on July 23rd, 2009 — in Best Health, Science Stuff
Doctors who specialize in cancer treatment choose what type of treatment to prescribe to a patient. There are many options. There exists no one size fits all treatment course for pleural mesothelioma cancer sufferers. This is due to the cancers high mortality rate, rareness, low treatment success rate, and small number of studies to provide meaningful statistics.
While prospects for patients with mesothelioma have been bleak, doctors have been making progress. Customary treatments for cancer are surgery (removing the tumor and the tissue that surrounds it), chemotherapy (poisoning cancerous cells) and radiation (killing cancer cells with radiation) All three methods have problems. Mesothelioma patients treated with traditional radiation therapy have not responded well to it. Researches, concerned about damage to healthy tissue, are looking for ways to aim radiation directly at tumors.
The mesothelial tissue around the tumor is removed by surgery. This surgery is extensive and it is not clear how much the patient benefits. Common chemotherapy drugs that work on other types of cancer usually do not work on mesothelioma, and different combinations of chemotherapy drugs have been tried without a lot of success. As with radiation, research is going toward controlling the physical location of the treatment with emphasis on the pleural cavity.
Many advanced techniques in cancer treatment are tried on mesothelioma patients because of its high fatality rate. These include biologic therapy such as the agent interleukin 2 and anti-angiogenesis drugs such as thalidomide. The new drug pemetrexed (brand name Alimta) has shown good results in extending life with mesotheliomas..
Before acting, oncologists review the stage of mesothelioma, position of the tumor, and age and health status of the patient. Theres also photodynamic therapy and gene therapy ” two far-out new ways of attacking cancer. Patients afflicted with mesothelioma are benefitting in these clinical trials.
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Posted on June 18th, 2009 — in Best Health, Science Stuff
Cancer of the mesothelium has a few primary symptoms. The primary symptom of pleural mesothelioma is having trouble breathing due to pleural effusion ” the increase of fluid in the membrane, or pleura, around the lung. Another common symptomis chest pain because the tumor is attacking the chest wall. Symptoms may also include fatigue, loss of weight and night sweats
The most common signof patients with abdomen mesothelioma, which begins in the abdomen, is fluid buildup (known as ascites) in the abdomen causing abdominal swelling, bowel obstruction, and stomach pain.
It is key to understand that these symptoms could be caused by a myriad of diseases or conditions. But if you have experienced any of these symptoms and have had asbestos exposure, you should see your doctor.
Peritoneal mesothelioma cancer is hard to identify, because less serious conditions also cause similar symptoms. Symptoms typical for mesothelioma:
- Difficulty breathing
- Chest or lower back pain associated with an excess of fluid in the pleura
- Burning up
- Upset stomach
- Breathy voice
- Having trouble swallowing
- Coughing blood
One should not self-diagnose themselves. Sufferers of the above symptoms should not panic, and should consult their doctor. Performing a biopsy is the standard way to confirm the condition. A pathologist takes a sample of tissue from the suspected region and examines the biopsy which results in a very precise diagnosis. Biopsies are typically pain-free.
CT scans (Computed Tomography) are an option to avoid a biopsy. This is an X-ray procedure where a scanner takes many cross-sectional images as it rotates around the body. Once in a while, a dye is ingested by the patient to help define the images. CT scans have an advantage over biopsies by being easier and non-invasive, and they are considered an effective way of diagnosing the disease. Opinion is divided as to whether the scan is more or less cost-effective than a biopsy. If there are abnormalities, a biopsy may also be ordered to determine if a tumor exists, and if so, if the tumor is benign or malignant. It is also possible to diagnose pleural mesothelioma by testing a sample of fluid from the pleura for cancer cells.
Mesothelioma can also be screened and then diagnosed by any of these methods. Patients who may think they are at risk but do not display any symptoms are typically screened, to ensure they are not at risk to get the cancer or to catch the cancer early. Patients who have in their past inhaled asbestos, should be screened for mesothelioma.
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