Wednesday, August 24, 2011

How solar panels and solar energy work

!±8± How solar panels and solar energy work

Solar energy is an old technology, even though the new photovoltaic technology has greatly improved the efficiency of solar cells significantly over the past ten years. You've probably used before in some solar energy to most likely a solar calculator for math problems at school or university. It 'also possible, portable solar systems that are used to connect computers portable radio, cell phone, digital camera or even a microwave oven for the operation could acquire if you are camping, hiking or goingvisit the beach. These small solar panels function almost the same as a large solar panels on the roof the roof to generate more power.

The solar cells that you see on the panels are photovoltaic cells, which were originally to power satellites in space and equipment invented called, but are now used worldwide in homes and also supply some commercial offices and factories.

Photovoltaic (PV) solar cells are made of materials that have firedthe rays of the sun and absorbs energy from the sun, which is used both heating water through pipes in solar panels, or used to be absorbed by the semiconductor material and to generate electricity.

The science behind this feeling is that the photovoltaic cells to collect electrons from the light, the electrons flow in one direction by the electric fields they contain. The flow of electrons through the use of metal on the top and bottom of the solar panelensure that the current can be extracted for use.

If the solar panel is used to produce electricity instead of hot water, electricity in batteries, which are stored by a similar way to those you have seen in your car. It is essentially a set of different batteries that power and a control unit, which enters the right amount of voltage and power amplifiers in your lines when someone turns on a light switch or a home appliance store provides.

Of course there is anothercomplex explanation of how this all works, if you want to get technical and scientific information. However, this has a basic explanation of how solar panels actually work and do not hesitate to ask our our electrician, if you want a more detailed explanation. The key advantage of solar energy is that after the initial investment in the solar system will produce clean energy to power your home for the next 20 years at no additional cost. With rising prices for energy and electricityDiscounts in Australia this is an option worthy of your attention.


How solar panels and solar energy work

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Tuesday, August 9, 2011

Calculator Top 6 applications for Android

!±8± Calculator Top 6 applications for Android

The Samsung S Galaxy, Droid, myTouch 3G Slide, ages 4, the list goes on and on. Many of the hottest smartphones on the market today on Google's Android OS. Published with each new machine for Android, the enthusiasm is growing about the system.

A quick search on "calculator" on the Android Market went about a thousand results so far than people would like to order. Here you will find dozens of tip calculator, BMI calculator, mortgage calculator, love calculator and many othersprobably not what you are looking for. Fortunately for you, we have the hard work of searching through all these applications do this for you and found this 6 deserves your attention.

# 1 - HandyCalc Calculator mmin

HandyCalc Calculator is our choice for the computer on top of Android today. This application gives you a lot of basic functions of a TI-84, including all aspects of scientific calculator, graphing and solving systems of equations. Repliesback into the village and radical form or converted to decimal. There are also simple copy and paste, which should be available in multiple applications. The application also comes with a demo-doc and a link to a video tutorial. There are a lot to like here, and although not perfect, it comes as close as anything we've seen.

Pros: Free, scientific graphs and solve systems of equations, provides accurate answers for both groups / radicals, as well as a decimalApproximations.

Cons: the missing features of a typical Grapher as the max / min, fields, etc.; crawling between keyboards and pushing buttons feel uncomfortable (to perform various functions) are two different "equals" key may be a bit 'confused.

Cost: Free

# 2 - Scientific Calculator Kreactive Technologies

Scientific Calculator was the best user interface of any computer that app we reviewed. The keys are attractive, with a beautiful top-lit effect and a good size, so easily. Press button A scroll arrow or double film that allows easy access to scientific functions. The computer does not have some basic graphics functions. This computer is very close to, 2-line functionality. You can calculate a total, before pressing ENTER. Then you can go to the previous calculation by pressing the input field again. There are more powerful applications on this list, but the user interface is important in an Android app, and is a great scientific calculator.

Pros: Freeattractive user interface, some features of a 2-line calculator, some graphics functions

Cons: limited graphics capabilities to users in the market give some comments about the lack of + / confused - key, even if we found it so easy to get around.

Cost: Free

# 3 - Calculation Tools by Andy Mc

A great computer for students calculate App Calculation Tools As the name suggests, this application has focused almost exclusively on the calculation, is not for everyone. The full application willand derivatives to the fourth degree, both algebraically and with a fixed limit. It also has the ability to solve problems with arc length, area, and Taylor series. The results will also be presented graphically. The application also includes a fairly large list of formulas, calculus students learn by rote. The only real drawback of this application is that his scientific calculator mode is still in beta, and quite limited, and distribute this must be done withThe standard keyboard.

Pros: Free to resolve symbolic computation and numerical functions, the ability to graphics, great "cheat sheet" of formulas

Disadvantages: Using scientific calculator functions still in beta, has a standard keyboard, instead of separating the user interface Mathematics

Cost: Free or $ 2.50 donate version

UPDATE: The keyboard has been added to switch to math calculation tools

# 4 - by Mihai Preda arity Calculator

Arity Calculator is a user interface is completely different skills andother applications in this list. If you are looking for a good 3D Grapher, that's all. They have the ability to graph in 2D or 3D, and press Enter, you will have a clear request, the equation but, where they can easily be intercepted, if you save later. We would have difficulty in recommending this machine for a beginner, but powerful 3D features will appeal to many users anyway. Arity is an open-source app.

Pros: Free, open source, fast, 3D features, screenshotsGraphic

Cons: Almost all the commands (eg, sin, cos tan,) to be entered from, although you can navigate and zoom in and out diagrams, there is no way to track, find intercepts, etc.

Cost: Free

# 5 - Scientific Calc RealCalc Brain Overspill

If you want something comparable to a TI-30 (a line) investigated RealCalc Scientific Calc fit the bill. It's free, fast, and offers all the features of a standard scientific calculator. It also provides an excellent meansMenu for new users. The user interface is not exactly the most attractive, but we sure appreciate some of you that really looks like a retro calculator. Although we prefer to see a true two-line display, the developer of a function of the previous answer, you can set a series of previous results are available has made available.

Pros: Free, fast, easy, provides functions of a standard scientific calculator, option Reverse Polish Notation is that of a given stimulus

Disadvantages: a line ofInterface on a computer, no video option, user interface straight out of retro in 1985 is not for everyone

Cost: Free

# 6 - Eric Johnson + Calc

How many Android applications, Calc + is available in both free and paid versions. The free version offers the features you expect in a scientific calculator. The paid version offers additional features haptic feedback (vibration) and unit conversion. In a smart decision by the developer of the user interface, users can switch from a simple calculatorand the scientific mode by rotating rotation from vertical to horizontal. The design is minimalist, yet appealing. The main disadvantage of Calc + is no possibility to change the default mode of radians to degrees.

Pros: Free version available, simple and attractive user interface

Disadvantages: An online interface to activate only the calculations in radians

Cost: Free or $ 0.99


Calculator Top 6 applications for Android

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Monday, August 1, 2011

Texas Instruments TI-84 Plus Silver Edition Graphing Calculator

!±8±Texas Instruments TI-84 Plus Silver Edition Graphing Calculator

Brand : Texas Instruments
Rate :
Price : $89.99
Post Date : Aug 01, 2011 17:06:00
Usually ships in 1-2 business days



Texas Instruments Plus Silver Graphic Calculator 84PLSE/CLM/1L1/E Calculators

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