Archive for the 'Better Science Savvy' Category

Selling Electricity Back to the Utility District

December 26th, 2009 filed under Better Science Savvy

This is a great situation to be in, be selling electricity back to the utility district. There are a few things that you need to consider before deciding on installing a solar power system on your house. In order to recoup the initial investment you need to determine how long it will take. First, you can generate your own electricity that does rely on your power lines, eventually slashing off the multitude dollars in your electric bills. Second, you can power up all those equipments and gadgets at the same time without sacrificing the benefits of enjoyment and relaxation. Third, you can gain dollars from the electric company once you produced more energy than what you consumed. And lastly, you become environment friendly. This is the best deal! Make solar power and enjoy living even a luxurious life with cheap electric consumptions. You can always seek help. You will need an area that has direct contact with the sun, make sure that there are no trees or buildings that shade the area. Also, think about the amount of power that you will need for your home. Look at how many major appliances will be powered by the solar energy, and how often they are used. None of the available technologies using renewable energy can compete with the cost of electricity generation from coal. This is also one of numerous examples where free markets perform poorly. The technologies for generating electricity with solar power, wind power, marine power, and geothermal power are very well understood. What is missing is the industrial hardening of these processes and related hardware. This process of moving a technology from the demonstration plant stage to a more dependable and less costly mature system status is the most critical, costly, and dangerous step when developing industrial systems, which must operate uninterrupted 24/7 for thousands of hours on end.

Source:Alternative Energy News


Visually Pleasing Wind Turbines

November 11th, 2009 filed under Better Science Savvy

As well as being visually pleasing, it has to be sturdy. If it blows around in the wind, it will seriously reduce the amount of wind power that your turbine blades can harvest. In addition, the last thing you want is a passer by being injured by your wind turbine breaking free in strong wind and falling on them!Using the wrong batteriesFluctuations in the power generated by a wind turbine are a fact of life - wind isn’t constant. Therefore you need to store power when it’s being generated, so you can use it when it’s needed. You will also be contributing to the community in a positive way. Instead of just talking about global warming, you are actually doing something about it. There are two options to tackle this project. You could search the Internet on various methods to build your own home renewable energy system. The problem with this approach is that it will take a lot of time to gather all the information. The truth of the matter is that residential wind power can be hooked directly to any home with out the need to switch any of your current wiring or appliances. The only extra add on may be your utility company might install a second utility meter so that they can measure any surplus electricity they will be buying from the residential customer who is utilizing residential power wind. This article will explain the new revolution and why it is such a huge deal. A home wind power generator is a simple machine that hasn’t had a major technological revolution in a very long time. Though it is thought of as the most cost effective energy solution, it is difficult to build.


Do You Ken John Peel?

November 3rd, 2009 filed under Better Science Savvy

Do You Ken John Peel?

My daughter Abi turned thirteen recently and as head of the family she thinks it’s about time her parents became vegetarians. She has been a convert, with occasional lapses, for around two years. I’m certainly not against the idea. We hardly eat meat anyway; just the odd bacon sandwich and an extremely rare steak (rare in the numerical rather than the French culinary sense), but it would be good to lose that feeling of guilt experienced when a cow looks at you over the fence with those mournful eyes.

Actually the cow is not at all sad - it’s probably wondering if you are going to pass it some of that long green grass on the other side of the fence, but the guilt is real enough.

Of course, not everybody feels that way. In another life I used to be a musician and I remember driving to a gig with a black American blues singer called Johnnie Mars. I pointed out some ducks which were flying low over the band bus in formation. Johnnie looked up and said yep, he thought they were mighty fine, and after a moment, ‘Especially with roast potatoes’.

This was said without a trace of irony. He told me later, with the same straight face, that he was well known in East Poland and Latvia, which reminded me irresistibly of Dorothy Parker’s line about being famous in two continents - ‘Greenland and Iceland’.

Anyway, as I said, I’d like to become a vegetarian, but I think you have to pick the right time. It’s like giving up smoking, something I finally managed to do ten years ago after many attempts. One day, all the conditions were right and I stopped, just like that.

That’s how I imagine it would be when giving up meat, although as far as I know, meat is not addictive. There’ll be no retrievals of half used packs of bacon from the bin, or furtive trips to the corner shop, (’Just going to take the dog around the block, dear. Won’t be long’).

These ruminations (isn’t that what cows do? - Ed) were brought on by the fact that we’ve recently moved house. We’re now twelve miles further north and within sight of the Moray Firth. (In Scotland an estuary is called a firth, so for example we have the Firth of Forth - see?). Anyway, in those few miles, we’ve moved out of the Highlands and onto the coastal plain, which drops gently down to the sea, about six miles away, giving us a clear view of the few solitary cottages and farmhouses in the area, plus the remains of Duffus castle and the Lossiemouth lighthouse.
All this is very different from the Highlands, with its hills and valleys, rough ravines and forests. Almost a different country, almost a different people. Before the Jacobite uprising in the 18th century and the subsequent destruction of the clan system, the ‘wild, wykked hieland men’ used to swoop down onto the coastal plain, steal all the cattle they could cope with, burn a few cottages and disappear back into the hills.

Well, the clans are no longer a force, and instead there are large shooting estates, sometimes owned by old established families and sometimes by wealthy newcomers. Clients pay the equivalent of the price of a good second hand car for a few days shooting. We used to live in a farmhouse right in the middle of one of these estates. Pheasants were as common as pigeons and sparrows are in town. It was not at all unusual to see two or three elderly gents stroll past our house, stepping stiff-legged over barbed wire fences (ouch), with their broken shotguns cradled over one arm and their labradors at heel.

Now, you might think I’m out of sympathy with the hunting fraternity, and you’d be right, up to a point, although it’s true I did a lot of fishing in my early teens, and I once owned a beautiful .22 BSA air rifle with an oiled stock and a rifled barrel. I gave up fishing when I discovered girls, and I exchanged the rifle for my first guitar and never looked back.

As a young teenager, part of my reading was about the safari hunters of Africa and India, last of a dying breed. One of the most interesting of these was Jim Corbett. He became well known as a writer and his best book was probably ‘The Man-Eaters of Kumaon’. He had respect and even love for the man-eaters that he had to shoot. He was not just a hunter; he was also a naturalist and an early conservationalist, who warned against ‘the indiscriminate hunting of the tiger, which if not controlled would eventually deprive India of the finest of her fauna’.

About this time I discovered two great American writers; Hemingway via ‘The Green Hills of Africa’, written in 1933, and William Faulkner through ‘The Bear’. Written in 1942 as a long short story, ‘The Bear’ is Faulkner at his prophetic best. It’s about a group of men and boys who go on a hunting trip every year’, and each time they have to drive further to find the wilderness as the Mississippi Delta shrinks. At the time the story was written, conservation was not at all fashionable, nor was it twenty years later when I read it, but it made me realize that there could be a link between hunting and conservation.

I have no desire to hunt or shoot any animal, but I’m hardly in a position to criticize anyone else while I still eat meat. The arguments in favour of hunting are not easy to refute. For instance, it’s claimed that without foxhunting, farmers would quickly eradicate the fox and that in Scotland the Red deer population would soar without adequate control.

Maybe, but I can’t help thinking Oscar Wilde got it right when he wrote about ‘The unspeakable in pursuit of the uneatable’. Besides, as a solution to the deer population problem, I’m for the re-introduction of the wolf, absent from the Scottish Highlands since before Bonnie Prince Charlie went home to Italy. This is a serious and considered proposition, now championed by the Green Party, and it feels right to me. It works in Montana - why not here in the Highlands? In the meantime, at least I’ve moved out of earshot of the shotguns on the estate.
James Collins

http://www.pet-portraits-scotland.com
email:collinsdallasart@tiscali.co.uk

About the Author

James Collins is an artist, writer and musician who works in the north of Scotland. These days he specialises in portraits of pets and other animals. He lives with his wife, daughter, and three dogs in a house overlooking the Moray Firth.


Difficulties with Algebra

Algebra is one of the essential arms of mathematics which studies structure, relation and quantity. Algebra works with numbers, symbols, elements and variables. Basic algebra is an introduction to constructs in algebra like solving radical equations, understanding polynomials along with factoring binomials, trinomials and polynomials as well as the determination of their roots.
Linear inequalities are the simplest to resolve. An extension of linear equations leads to the simultaneous equations with two or three variables. As we advance further in the sequence to quadratic, bi-quadratic and cubic equations, they turn more and more complicated to resolve.

The Roots of Algebra

Elementary algebra constitutes the intermediate or college algebra. Apart from covering mathematical expressions, it also consists of all forms of equations like linear, quadratic and cubic. In algebra, all shapes such as a circle, hyperbola or parabola are interpreted by equations.
The equations can be resolved to generate a graph. Lines are the product of graphing simple linear equations. Systems of equations can also be solved graphically which is sometimes simpler. Two or more equations with the same number of variables are commonly identified as a system of equations. They can be both linear and non-linear. Systems of equations with inequalities (example; x>y) when graphed gives an area on the graph which matches the inequality condition.

Matrices assist find solution to a lot of complicated problems like the ones existing in electrical networks. A matrix is a rectangular range of numbers organized in rows and columns. A matrix comprise of many numbers and they are called entries. Different operations like addition, multiplication and decomposition can be performed on matrices thereby providing working answers for theoretical questions.

Aid for Algebra

Due to the solid theoretical and practical background, algebra acts as the spine for numerous other sciences. The invention of computers has made algebra simpler than what it was and therefore it has got an all different main position. Algebra is not as complicated as it may sound. There is a plenty of aid and tutorials available to aid you excel the world of algebra.
Internet resources like algebra solver are interactive, present algebra lesson and assistance you solve many matters connected to algebra from Algebra-1 to College Algebra. If you have not understood something in your algebra course of study or sense that you have overlooked an key mathematical concept, World Wide Web tutors can provide you that extra aid. Algebra calculators lead you over your homework with a gradual calculations and explanations. You can improve your knowledge with the help of the interactive tools. By taking an online test, you can self appraise your knowledge of algebra.


Photodynamic Therapies May Make Better Options for Treating Mesothelioma Compared to Radiation Therapy

July 15th, 2009 filed under Better Science Savvy, Online Health

Cancer doctors determine what kind of treatment to pursue with every patient. There are numerous options. There exists no regular treatment regimen for mesothelioma victims. This is due to the cancers high mortality rate, rareness, low treatment success rate, and small number of studies to provide meaningful statistics.

Mesothelioma patients have historically had a bleak outlook, but doctors have recently made progress. Treatments for cancer are traditionally surgery (taking out the tumor and surrounding tissue), radiation (killing the cancerous cells with radiation), and chemotherapy (poisoning the cancerous cells.) All three methods have problems. Patients with mesothelioma have not responded well to traditional radiation therapy. Researches, concerned about damage to healthy tissue, are looking for ways to aim radiation directly at tumors.

Surgery removes the mesothelial tissue around the tumor. The surgery is difficult and challenging, with unknown effects or benefits to patients. Most chemotherapy medication that work on other cancers typically do not work on mesothelioma, and different combinations of chemotherapy drugs have been tried without a lot of success. Like radiation, researchers are focusing their work on controlling the physical location of the treatment with an emphasis on the pleural cavity.

The high-mortality rate for mesothelioma patients means cutting-edge techniques for cancer are tried out. These techniques include a biologic therapy called the agent interleukin 2 and anti-angiogenesis drugs like thalidomide. The new drug pemetrexed (brand name Alimta) has shown good results in extending life with mesotheliomas..

Considered by oncologists is where the tumor is located, what stage the mesothelioma is in, and the age and health of the patient. Two exotic ways of attacking mesothelioma are gene therapy and photodynamic therapy. Mesothelioma patients sometimes become involved in clinical trials in this area, and see benefits.


Simple Algebra

Algebra is one of the most significant and superior branches of mathematics. Although at first it may look to just fly over your head, a lot practicing helps students to understand the study. pupils will have to learn this for many levels, thus it is essential to create a sound base from the beginning.

Areas that are Difficult

Algebra includes many areas of study, graphing curves being one of them. This could include charting a circle, graphing systems of linear systems of inequalities, graphing inequalities or graphing quadratic equations . Exponents is one of the important areas of study. This can range from subtracting exponents, dividing exponents or just using the laws of exponents. Rationalizing, factorizing, matrices, hyperbolas and quadratics all have to do with algebra.

It is normally agreed that algebra is a hard subject area. Nevertheless, in today’s day and age that is not a problem as virtually each pupil is capable of getting to and using a computer. A pupil can easily use online mathematics programs that instruct and test students. These computer programs also have worksheets to aid students practice and enhance their skills. Online tutors are also available and are easy to reach. The charges can be based on number of hours or per module and this works as if the pupil and the tutor were face to face.

Getting Aid with Algebra

For aiding pupils, there are a large number of packages available on the Net. These programs provide bit-by-bit guides to help students over their difficulties. These packages can help you with your homework, test preparation and even exam preparation! As algebra has a wide number of sub-sections you can choose software programs that link to your specific difficulty or problem. This could be radical equations, inequalities, functions, or just graphing. Some computer software packages also include games and videos that could further develop your algebraic skills.

Algebra calculators are one of the most principal tools available for aiding your skills in algebra. They can help resolve some types of algebraic questions. Mostly these will include questions that have to do with quadratic equations or radical inequalities. Different calculators allow you to construct graphs at the click of a button.

Though these software packages and other aids can aid many pupils overcome a great number of problems, it is important that they are employed for the correct purpose. Using these facilities and cheating would only be a loss to yourself. These package are ideally used for double-checking your answers of your review tests rather than using them to complete your homework.


The Reason behind Algebra

Algebra is the one which is used for getting our common tasks completed. We are a kind that constantly continues counting, measuring, dividing, and multiplying.

History of Algebra

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 utilized geometry for the same function

The Nature of Algebra

Although you may see algebra as solving formulas, simplifying rational expressions, and converting fractions to decimals, algebra has a much wider body of knowledge and applicability. Through a systematic introduction of this knowledge (Algebra I, Algebra II, and College Algebra), the education system makes us mindful of the mathematical tools used for daily life.

Algebra I

The pupils 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 of study lays the base for the rest of the higher algebra waiting to be searched in the next two stages.
If a student is keen on studying algebra down to its roots, then this is a subject field course that should be tackled well.

Algebra II

Once the students are sound with Algebra I constructs, Algebra II can be taken up for expanding the spectrum of this extraordinary section of mathematics. There are two views of Algebra II; stressing more on the topics learned in Algebra I and introduction to new concepts. When it comes to the new introductions, adding and subtracting matrices, quadratic functions, solving exponential equations, probability and statistics are notable.
At this stage, the subject fields are more adjusted on the depth of mathematical concepts rather than the coverage of many topics.

College Algebra

This is one of the most important degrees of learning Algebra with virtually no new topic presented. I assume it is quite funny, but this is the nature of maths. 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 assistance on Algebra?

Algebra has the most wide-ranging methods and tools accessible for getting help. The first and the foremost crucial source is an Algebra tutor from whom you can get help and aid.
In addition to the above methods, students should never underestimate the use of Algebra software program that is especially designed to solve algebraic problems with informative steps. This software system really brings insight in to Algebraic operations of solving equations , by providing pupils to simply watch and learn through good examples.