Category Archive 'Internet Science Resources'
07.02.10
Nice project for a handyman who likes to get creative on a great constructive power saving project, Comes with electrical diagrams and cheap methods of buying low cost effective products, with step by step detailed instructions, diagrams and all. Reading reviews on free energy green DIYenergy seems to be the top recommended product. You can build a single solar panel or you can build an entire array of panels to power your whole house constructing 60 to 120 Watt Solar Panels for under $200 or easily do it for less than $100 if you do a little extra work in collecting materials finding the cheapest (or sometimes free) materials needed for your project.The amount of savings could easily exceed a few thousands of dollars per year, every year as long as you power your home with wind energy. First stop you need to ensure that you are able to locate your wind turbines at an unblocked area in the wind path with wind speed of at least 7 miles per hour to optimize the wind power collection process. All materials required for building your wind generators are conveniently available at your friendly neighborhood hardware store too. While it would be a little confusing for the novice trying to set up you own wind turbine, your green journey is made much smoother with a good manual which provides specific instructions complete with pre designed system diagrams. Wind energy is as clean as it gets.2. Building wind turbines for homes is very cheap and easy. You can make an entire turbine on your own for about $200, and nearly anyone can make one.If you do your shopping smartly, or with the help of a proper do-it-yourself kit, you should not be spending more than $200 for the materials required. You do have to be at least technically knowledgeable, although the tools required are nothing special. And even so, you can always involve a friend or a family member who is more technically inclined to help you out with assembling the parts together. You should face no problems building the wind turbine provided you have a proper set of instructions to follow. In fact, it takes just a few hours of your weekend to completely build one.
29.11.09
Would you care to offer an opinion on what a person should do with his obsolete cell phone? Now, now… We don’t want to hear about what you thought that guy who was talking on his cell phone during the movie should do with it… The bad manners of a few people aside, cell phones do pose a significant waste disposal problem for society.
INFORM, an environmental research organization partly funded by the EPA, has estimated that cell phones are typically used only for about 18 months before being replaced. Calling plans are often packaged with free or low-cost cell phones, which often makes keeping your current phone economically disadvantageous. Thus, many cell phones face their demise before they have become technologically obsolete, and the waste stream gets not only the cell phones that are truly unusable, but also those that are simply no longer the best deal for the owner.
As of 2001 (the last year figures were available), there were 129 million cell phone users in the US, with 400 million users worldwide. In the coming years, as population and market penetration for cell phones both increase, the number of cell phones destined for the waste stream will continue rising. With such a short average lifespan for each cell phone, it’s easy to perceive the magnitude of the cell phone disposal problem. INFORM estimates that by 2005, nearly 130 million cell phones will be discarded every year in the United States.
How does this affect the environment? In addition to the volume of landfill space that cell phones could take up, they also contain toxic chemicals such as: - arsenic (used in some semiconductors) - brominated compounds (used as flame retardants) - lead (used in the solder that attaches components to circuit boards)
These and other cell-phone toxins enter the environment when discarded cell phones are incinerated or when rainwater leaches the materials out of landfilled phones. Many of the toxic compounds in cell phones are found on the EPA’s list of “persistent, bioaccumulative, and toxic chemicals.” EPA warns that these substances can cause a range of adverse human health effects, including damage to the nervous system, reproductive and developmental problems, and cancer. Eek! Call a doctor!
So, what is a highly mobile, well connected cell-phone lover to do with a phone they no longer need?
Well, if you could go back in time, you could reconsider the waste issue when evaluating your current cellular-service package. True, you can’t do that; but here in the present, you can include the disposal issue when considering whether or not to renew your current plan or go with a one. If your phone still works fine, choosing a plan that allows you to keep it is the best option from an environmental standpoint. If you do decide you want a new phone, you can still take the waste issue into account to avoid finding yourself in the same situation a year later. Don’t accept a plan where the economically intelligent thing to do again will be to throw away a perfectly functioning phone.
Inevitably, at some point you will probably have a still-working but money-stupid cell phone on your hands. If so, you may be able to give it back to the manufacturer for reuse or recycling. Two major cell phone manufacturers, Nokia and Motorola, offer take-back programs. Or you can donate your phone to certain charitable organizations that can put them to good use. Two such organizations are: - Collective Good (http://www.collectivegood.com) - Donate A Phone (http://www.wirelessfoundation.org/DonateaPhone/index.cfm)
There are other donation options, and new ones are likely to come up in the future. To find out how else you might find a good home for your old cell phone, or to figure out how to just recycle it, visit: - The Wireless Foundation (http://www.wirelessfoundation.org/) - The cell phone industry’s recycling site (http://www.recyclewirelessphones.com/)
In grocery stores and restaurants, in traffic, and even sometimes while sitting on the can, cell phones are becoming an essential part of an efficient lifestyle for many people. Only you can prevent the flushing of perfectly good cell phones!
Finally, we just want to mention that it’s not true that our cell phone has the president on speed-dial #1. We did for a while, but the Secret Service made it clear that our “ideas for putting more humor into governance” were not welcome.
For jokes, cartoons, and more great environmental information, visit http://www.grinningplanet.com .
© 2003 by GrinningPlanet.com You have permission to publish this article electronically or in print, free of charge, as long as the bylines are included. Must be published complete with no changes. A courtesy copy of your publication would be appreciated.
About the Author
Mark is a writer, financial analyst, web developer, environmentalist, and, as necessary, chef and janitor. Grinning Planet is an expression of Mark’s enthusiasm for all things humorous and green, as well as a psychotic desire to work himself half-to-death. Hobbies include health foods, music, getting frustrated over politics, and occasionally lecturing the TV set on how uncreative it is.
18.11.09
The rise and drop in temperatures in the coming years, place intense pressures on consumers around the world as this means only one thing, more energy and fuel are needed to control the environment and make homes more comfortable. Over the years, new technology has been invented to improve the manner of living - energy saving devices are not excluded. However new technology, as always, is a bit expensive at first. And the prices will go down after some time. But instead of waiting for a more affordable energy saving devices, let us apply our common sense today and do some effort in saving energy. •Avoid “phantom” energy users. Electrical appliances that are plugged in to sockets even when not in use consume energy. It is like a turning on the engine of your car and idling for a very long time. A single appliance that remains plugged in may not give a significant increase in your electric bill but letting every appliance on “standby” can be a real money spender. Make sure to pull the plugs of every appliance from their sockets whenever you don’t use them. •Turn down temperature of water heaters. Water heaters hold about 40 gallons of water and maintain it at a constant temperature. Forty gallons of water that is sitting in your tank for a very long time consumes a lot of energy. If the water heater is not expected to be used for a while, it is advisable to maintain it at a lower temperature. •The openings and leaks in doors and windows create drafts. The stronger the draft is, the longer it will take for homes to be heated or cooled - in addition to the extra work that a heater or an air-conditioning system is doing to regulate the right temperature of the house. In newer homes, the problems may be few as today’s’ builders take more attention to sealing drafts potential areas and slots. Older homes may not be as well sealed. Even if the outer walls are insulated, air leaks often occur around wall outlets, switches and vents that could result in water condensation around these areas. A good foam patch could fix the problem. •If there is really nothing to prepare much cooking for, let the stove and oven rest. Instead, use the microwave. When cooking in stoves though, the closer the bottom of the pan used for cooking matches the hob ring of the stove, the more energy is saved. Too much flame for the pan and you are paying for heating the air around it. •
Source: Wind Turbines
14.11.09
Incense have been used in Many spiritual and non-religious activities around the universe for
Many hundreds of years. That is why from Ancient Rome to Asia, the leads
of incense can be traced through history. There are two ways of making incense: machine aided and hand dipped. Numerous people
prefer to buy hand dipped incense as they do carry utmost quality aroma and lasts long. Numerous machine made incense are not
viewed as of utmost quality. Some of the most common measures of quality of incense are seen as the fragrance, the size and the shape and the color. In most of the cases, the color plays a very insignificant role and has very little influence on buying decisions.
Common Characters of Incense
Incense have come to the market in Galore forms from the recent past facilitating casual use around the
house to add fragrance. These incense produced as blocks that looks like pieces of chalk can be placed almost anyplace in the house that
you wish to add a new fragrance too. There are also another type of incense that is especially fabricated to be used in kitchens to combat odor of food. This comes as a versatile solution for all those who have open kitchens in their households.
and Incense
Apart from the everyday uses, incense are also used for relaxing. If this is the purpose behind why you
buy incense, you need to be extra cautious about the aroma contained in it. By now we know that perfume therapy is
one of the most effective ways of getting over stress. So whenever you feel like the world is about to collapse, take a minute
to light up a good 5-6 incense sticks or 3-4 incense blocks (which are stronger than the stick), place it near the bath tub while you slack with a hot water bath. Or else, simply let the incense to light beside your bed and let yourself slack so that you will fall asleep with its cool
fragrance.. Nevertheless, if you suffer from conditions such as asthma, you may want to be careful with incense, not to irritate your system.
Incense & Candles
Candles are iconic of Numerous things including religious and non religious activities from around the globe. It has been used as a source
of light for ages. At present, there are Many uses of candles such as for religious observances, as a temporary source of light, and
for romantic engagements. Usually candles are made otherwise for distinct needs. When the
candles are made for religious activities such as ceremonies in the church, they are made with cheap material so everyone could afford. If the purpose of the candle is
to be used as a source of light, they will be manufactured to generate maximum light using high quality parafine materials. Candles that are to
cater for romantic experiences are usually shaped and colored in attractive manner and curbs strong fragrances making them high priced in
the market. Usually, the candles are cheap to buy but the prices might vary depending on the materials and fragrance used. Used together, candles and
incense make a stunning couple!
05.11.09
Wind energy is as clean as it gets.2. Building used wind turbines for homes is very cheap and easy. You can make an entire turbine on your own for about $200, and nearly anyone can make one. Its a simple process and you can get all the parts you need right from your local hardware store. Ill be saving the environment at the same time. Most like the idea of generating their own electricity with residential used wind turbines, nobody likes to be a slave to the big oil companies, especially with their current record quarterly profits being flaunted in our faces while wee forced to dig deeper into our own pockets at their whim. These systems, after assembly, can be placed on your roof top so that you may generate your own free electricity. When you follow a good guide, you will produce a substantial amount of energy from solar energy systems or wind generation systems. These systems will even produce excess energy which will automatically be sold back to the local electrical company. Jay leno uses one for his garage; President Bush also has one at his Kennebunkport family home. Approximately 200 are now running but according to the A W E A they are still not readily priced and installed to make the power usage payback a sensible idea yet. That though may be changing. You can also utilize used auto parts to cut the cost down. To assemble the parts you will need simple hand tools such as wrenches, hand-drill machine, files, saw, etc. You may probably have them already sitting in your tool box. DC motor will probably need to be ordered, together with the blades. Depending on how big the power you are aiming at the propeller size can be as big as 4ft making the whole diameter up to 8ft.
24.10.09
An extensive research carried out to figure out the causes behind school dropouts shows that many individuals look at algebra as the culprit. It is well said, that just the knowledge of the teacher is not alone sufficient to spring up interest in the subject area for the students. It’s the way; the subject matter is delivered to its pupils which gives a lot for developing interest in the contents.
What is it?
A concise introduction of Algebra would be a subdivision of mathematics which replaces letters for numbers; therefore, algebraic equations can be viewed as a scale. Algebra includes real numbers, complex numbers, matrices and vectors.
The Different Domains
Algebra in general addresses a lot of areas. some such areas are Multiplying exponents, dividing exponents, Solving complex equations, Finding Greatest common factor or GCM, Multiplying, Adding, Subtracting fractions and many more.
If the above mentioned areas are already putting butterflies in your stomach, I hope that the definitions to follow will relieve your anxiety and give real insight in to the discipline.
Exponents are just shorthand for denoting multiplication of identical factors. Fractions on the other hand are used for expressing numbers that are pieces of a whole. Many such similar areas in algebra may sound fearful at the beginning, but once you understand the simple concept behind it, you will be captured by its purpose. To put down a few more items - Mixed numbers, Quadratic formula, Graphing linear inequalities , solving compound in equalities, Factoring binomials, and Factoring polynomials; are all algebraic expressions.
I am sure it will be obscuring to comprehend mixed numbers, but it will really interest you to note that they are none other than a type of fractions. Graphing linear inequalities states its purpose pretty distinctly by its name. Similarly there are many other algebraic areas which are really interesting to work with.
How to Find a Tutor
If you are curious in understanding the domain of algebraic expressions but do not have a private instructor to aid you in the process, do not worry since online lessons will come for your rescue. These tutorials emphasize the practical ways instead of technicalities, showing reliable techniques. Algebraic helper software can assist you in the step-by-step process of figuring and working through mathematics sums in a systematic, step by step way while providing good examples and explanations for all steps involved.
10.08.09
Mathematics has many subdivisions and algebra is one of the most stressed arms which studies structure, relation and quantity. Algebra operates with numbers, symbols, elements and variables. Students are presented primary constructs and methodologies of solving equations in elementary algebra like solving exponential linear inequalities , understanding polynomials along with factoring binomials, trinomials and polynomials as well as the determination of their roots.
Many beginners in algebra choose linear equations as they 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 are more complicated in nature and tougher to solve.
The Roots of Algebra
Everyone who is keen on studying algebra needs to go through primary algebra as it lays the introduction for intermediate or college algebra. Apart from covering mathematical expressions, it also consists of all kinds 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 solved to generate a graph. Lines are the product of graphing simple linear equations. Systems of equations can also be solved graphically which is sometimes better. A system of equations is two or more equations with the same number of variables. It can be both linear and non-linear. Systems of equations with inequalities (example; x>y) when graphed creates an region on the graph which matches the inequality condition.
Matrices help solve a plenty of complex problems like the ones existing in electrical networks. A matrix is a rectangular array of numbers presented in rows and columns. The numbers in a matrix are known as entries. Various operations like addition, multiplication and decomposition can be performed on matrices thereby providing working solutions for theoretical questions.
Assistance for Algebra
Due to the strong theoretical and practical background, algebra behaves as the spine for some other sciences. Once computer technology got in to the world of algebra, it has taken algebra to a new dimension by aid resolving century old problems within a matter of few hours. Algebra is not as complicated as it may sound. There is a plenty of aid and tutorials available to help you excel the world of algebra.
Net resources like algebra solver are interactive, give algebra lesson and assistance you solve many matters referred to algebra from Algebra-1 to College Algebra. If you have not understood something in the algebra course of study or sense that you have missed an central mathematical concept, online tutors, Internet resources, and online algebra courses of study can supply you that additional aid. Algebra calculators head you over your homework with a stepwise calculations and explanations with illustrations. You can improve your knowledge with the help of the interactive tools. You can also assess your knowledge at the conclusion of a lesson by taking the quiz.
20.07.09
Maqui Berry, a revolutionary nutraceutical in the high octane superfruit market! Maqui Berry liquid dietary supplement has the greatest oxygen radical absorbance capacity of any known superfruit based powdernutraceutical; with an ORAC value 4 to 30 times more than the common Acai, Goji Berry, Pomegranate, Noni and Mangosteen supplements.
Antioxidants remain the basis of good health and longevity. As we age, our cells continue to be affected by free radicals; our organs begin to degenerate and aging accelerates, states Dr. Ward Bond, television host of Nutritional Living. The body has built-in defense mechanisms to protect itself from free radical damage, but eventually, aging depletes the bodys ability to keep oxidants at bay. Maqui Berry is packed with antioxidants called anthocyanins and contains the greatest antioxidant valuevalues ever found among all berries or fruit. Maqui Berry is best in class for antioxidant products, the best known strategy for healthy aging, inhibiting free radical cells, strengthening the immune system and is a natural COX-2 inhibitor.
Maqui Berry, whose antioxidant value value is certified by Brunswick Laboratories, is one of the most power-packed with anthocyanins of all the fruits and berries for supplemental consumption. Anthocyanins are produced by plants for self-protection against sun, irradiation, diseases and biological enemies; maqui thrives in the harsh climate of central and southern Chile, necessitating the plants abundant anthocyanin production.
The native Mapuche Indians of the Patagonia region in South America have for centuries benefited from the unique medicinal and healthy aging benefits of the Maqui Berry. Annie Eng spent months with the Mapuches researching and working with them to harvest Maqui, then worked with researchers to confirm its oxygen radical absorbance capacity content. After securing an exclusive distribution agreement in the United States, Eng initiated a socially responsible program that donates supplies and services for the education and healthcare of the Mapuche Indians, as well as programs to help protect the Mapuche native forest from further deforestation and industrialization.
04.07.09
Algebra is good at differentiating relationships between things that vary from time to time. For example, the relationship between a person’s income and rise of his expenses could be resolved and predicted using simple algebraic equations. Math is not an easy subject for most pupils. Many software applications are available with a assortment of lesson explanations so students of whatsoever intellect level can find the way that works for him/her. It also assists students to comprehend utility of Algebra in real life as well as within industry solutions. Larger functions employed in algebra include Graphing fractional inequalities , Solving compound inequalities , Solving quadratic inequalities, Adding and Subtracting matrices etc.
Algebra is an important field of study but students can be weak-kneed initially if they do not work hard enough in early stages. This makes elementary math skills essential to help students successfully progress from algebra and advance into broader math with assurance.
How to Successfully Tackle 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 assistance, 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.
Such instructional tools useful when various forms such as audio, video, animations and games are put in to use in order to teach the lessons. All the important topics should also be covered from Pre-Algebra through Algebra II. Important topics in these courses are: Finding complement of an angle, composition of functions, finding degree of polynomial, determine if line is vertical
How to Operate Algebra Software
Some algebraic software shows results only, while other (much more suitable for elementary algebra) give away techniques and ‘how-to’ guides on math rules that are in use. For students, ease of use of the software is the number one concern. Thus, the software should be loaded with value added components like high quality and timely user assistance, coordinated help options, and easily laid out math wizards.
27.06.09
Mesotheliomawill show a few primary symptoms. Pleural mesotheliomas main symptom is a lack of breath caused by pleural effusion ” the accumulation of fluid in the pleura, or membrane, surrounding the lung. The second most common symptomis chest pain because the chest wall is being attacked by the tumor. Other symptoms may include weight loss, fatigue, and night sweats
The primary symptom of patients with peritoneal mesothelioma, which begins in the abdomen, is fluid buildup (known as ascites) in the abdomen causing abdominal swelling, bowel obstruction, and stomach pain.
Its vital to know that other afflictions or diseases could be causing these symptoms. Nevertheless, you should see a doctor if you have been exposed to asbestos and have experienced any of these symptoms.
Pleural mesothelioma is difficult to diagnose, because the symptoms are also experienced in less serious health issues. Typical symptoms:
- Having trouble breathing
- Chest or lower back pain associated with an excess of fluid in the pleura
- Burning up
- Nausea
- Breathy voice
- Difficulty swallowing
- Spitting up blood
Self-diagnosis should never be attempted. Sufferers of the above symptoms should not panic, and should consult their doctor. The standard way to confirm the condition is with a biopsy. A pathologist removes a piece of tissue from the suspected area and examines the biopsy which results in a very precise diagnosis. Biopsies are generally not painful.
A CT scan (Computer Tomography is an option if you dont want a biopsy. This is an X-ray procedure where a scanner is moved around the body to snap cross-sectional pictures. 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 irregularities, a biopsy may also be needed to know if the abnormality is a tumor, and if thats the case, if its malignant or benign. Pleural mesothelioma can also be diagnosed by testing a sample of fluid from the pleura for cancer cells.
These methods can also diagnose and screen patients for mesothelioma. Screening is when patients who may suspect they are at risk are tested for the condition without displaying any symptoms, to ensure they are not at risk to get the cancer or to catch the cancer early. People who need to be screened include those with a history of asbestos exposure..
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