... discarded after discharge, but some can be recharged and reused. By putting current into the battery, your are reversing the chemical reaction to restore active materials that had been depleted. This is known as the rechargeable battery, accumulator, or storage battery. By understanding the formation and operation of a battery, it is easy to imagine the significance of this genius invention. Today's society has ... come a long way from ignorance as far as technology goes. The battery is proof of this. ... more than a thousand different batteries ranging in a variety of sizes, shapes an...

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• Has Bibliography
• Grade Level: Undergraduate

... the battery run out of power very fast. You usually plug a battery in to a load. A load is a radio or light bulb or something you connect the battery into. For a battery to work you must have the negative terminal plugged into a positive one, thus making a chemical reaction to produce more electrons. If a battery ... is not connected into a load, then it can keep its power for a very long time. The first battery was created by Alessandro Volta in 1800. His battery contained many alternating layers. The layers were made of ... pile can be stacked as high as you want, and each layer will i...

• Word Count: 1394
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• Has Bibliography
• Grade Level: High School

... designed for the motherboard, or main circuit board, that you have. The motherboard holds many things vital to the computer, one of them being the battery. Now the hand on fun comes. To get to the motherboard, you must open the case. When opening the case, you must always detach the ... minutes. Once the case is open and you are grounded, now it is time to perform the surgery. On most mobo's, or motherboards, the lithium battery is on the lower left corner. It is silver and approximately the size of a quarter. You may have to shift a few disorganized wires in order ... runs your compute...

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• Grade Level: High School

... A BULB I. Electric circuits can be explained in terms of energy. II. Batteries provide energy to the charges moving in a circuit. a. a battery pumps charge from the negative end to the positive end b. batteries can be made up of a single cell or series of cells c. the charges lose energy as they pass through ... electrons flow through it a. filament conducts electricity b. thermal energy is produced IV. A simple circuit is made with a light bulb, battery and two wires a. battery - the energy source b. wire - the outgoing current path c. bulb - the energy destination d. wire - the retur...

• Word Count: 359
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• Has Bibliography
• Grade Level: High School

... of a handbag or backpack. However, sometimes people forget whether it has enough power when the time comes to use it. Before carrying the USB battery pack, it is important to make sure it will provide enough power for the amount of time you want to use it. Otherwise, it will ... . I was thinking that I would be safe if I stayed home, but I would miss the farewell party. Eventually, I decided to attend the party and carried my USB battery pack. I jumped on the bus, chose a window seat, and took out my smartphone to search the party's location. That was smart, and then I saw some words po...

• Word Count: 754
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• Grade Level: High School

... concentration is higher, there will be less water particles to block the hydrogen peroxide particles to meet up with the potatoes surface. Usually, if you double the concentration, you will half the reaction rate. Hydrogen Peroxide Hydrogen Peroxide is a chemical compound of hydrogen and oxygen. As explained in My Investigation', its scientific formula is H2O2. If this solution has not been altered ... ', lysis means splitting'). Molecularity The number of collisions taking place depends on the following factors: 1. The concentration of the colliding species 2. The molecularity of the pro...

• Word Count: 2748
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• Grade Level: High School

... a chemical in which the products can be converted back to reactants. It is also shown by the sign a half-arrow to the right (forward reaction) and a half-arrow to the left (backward reaction). An example of a reversible reaction The thermal decomposition of ammonium chloride On heating strongly, the white solid ammonium chloride, decomposes into a mixture of two colourless gases ammonia ... and hydrogen chloride. On cooling the reaction is reversed and solid ammonium chloride reforms. Ammonium chloride + heat ammonia + hydrogen chloride NH4Cl(s) NH3(g) + HCl(g) Reversing the reaction .....

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... which was to exceed customer expectations in every aspect of the online shopping process through the application of world-wide express delivery, luxurious delivery, and unparalleled customer service. Net-a-Porters vision has always been to excel universally and become the inspiration of all markets. The company also seeks to be relevant and provide the best service and customer ... competitors have access to them. Further expansion internationally and into other market segments such as cosmetics industry as well as creating Mr. Porter (online mens version) have always been net-a-porter...

• Word Count: 3582
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• Has Bibliography
• Grade Level: Undergraduate

... by using these criteria: áP Language System áP Restandardizing cost áP Availability of Resources áP Portability 2.0 ANALYSIS 2.1 What is .NET? 2.1.1 A New Framework .NET covers a wide range of features and technologies. .NET Framework is always connected to .NET. Part of .NET is really a run time called the Common Language Runtime (CLR), which applications are running. The CLR provides many of services for users ... Java Community Process (JCP), with the input and participation of a broad range of major technology companies. 2.2.3 The Java Language System The Java language system look...

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• Grade Level: High School

... may dominate the global internet business. Increased Risks of Commercial Fraud Commercial fraud is a universal dilemma that has pervaded several areas with ample internet connectedness (Sidak, 2006). Net neutrality promotes equality in all types of services including "e-mail, web browsing, VoIP/internet telephony, internet television, business applications, online gaming, file sharing, and ... undeserving favor. Cable television communications are slowly dying as the 21st century youthful generation continues to watch and chat online, and get access to developing news. Net neutrality is ...

• Word Count: 2201
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• Has Bibliography
• Grade Level: Graduate

... Google will be able to pay the premium for the fast lane and we could be left in the dust. So what exactly is net neutrality? Net neutrality is the basic fundamental characteristic of the open internet architecture. It is the idea that all information transmitted over the Internet should ... ) Preventing Bandwidth Throttling/ Data Discrimination: If your ISP is throttling your bandwidth they are deliberately slowing down your connection to the internet. Without any net neutrality rules some other company could be paying to slow my connection down. On the same level, a company could also ...

• Word Count: 1131
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• Grade Level: High School

... reduce carbon emissions, everything but political will. But in America, the will to act is a renewable resource." NEGOITA GEORGE ALEXANDRU (PME) – REACTION PAPER: AN INCONVENIENT TRUTH I have recently watched a documentary entitled "An Inconvenient Truth", released in 2006 and directed by Davis Guggenheim. The narrating ... 180 and 280 parts per million (ppm). The level today is nearly 400 ppm, well above anything that has been seen in over a half million years. And Gore points out that the CO2levels will rise to 600 ppm if something isn't done quickly. Gore describes the dramatic .....

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• Grade Level: Undergraduate

... fear of surgery and its effects are of a concern for all involved. Salter's "Half a Double Sonnet" is a sonnet describing the ordeal of a child named Ben. Ben has undergone surgery and is now suffering from double vision. Ben's reaction is vague. Many people would find it miserable to suffer from double vision; however ... Salter's play with quality begins with the title. Right from the beginning, the theme of seeing double is cleverly incorporated within the title. The title "Half a Double Sonnet" literally means one full sonnet. Metaphorically, it demonstrates the poet utilizing the t...

• Word Count: 888
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• Grade Level: High School

... than should be. If it were compared to the smaller chips the tine would be less because of it having it a smaller surface area for the reaction to take on. Safety It is important to carry out a safe experiment as we don't want to cause any accidents. The Safety Procedures are: & ... cannot be used again after the reaction otherwise the acid will be less strong to act on the marble chips. This is the procedure I will carry out the experiment: • First of all I will set up all the apparatus as shown in the diagram • Then I will fill a basin half full of water • ... cm3 I will take re...

• Word Count: 891
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... "It's not just a good idea. It ought to be the LAW" (Reflecting popular public opinion). And just what is Net Neutrality? Well, net neutrality can be summarised as the principles that are to be followed by corporations and governments. These principles are required as to moderate internet access ... and any potential profit that may arise from online services. How is this related to the subject? If the FCC's net neutrality violation was approved by the US Government then internet providers or big giant companies that own services will be able to manipulate services such ... any American ...

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"How the Other Half Lives" Jacob Riss was born into a middle-class Danish family in 1849. His father Neil Edward Riss taught at the Village School in Ribe. At a young age Riss was taught ... tenement houses. The immigrants were paying very high rent for these tenenments to the tenants, real-estate agents and boarding house keepers. Immigrants had no safety net and social services were almost non-existent in the slums. In "How The Other Half Lives", Jacob Riis tried to expose and clarify the living conditions of New York's poor to its wealthy. "The other ... half" that Riis refers to is the ...

• Word Count: 1875
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• Grade Level: High School

... with funding for green energy increasing and one of the most persistent promoters of information on global warming (Nobel Prize recipient Al Gore) reaching celebrity status, we are seeing a startling net increase in the emissions of the greenhouse gas Carbon Dioxide and a revitalized political commitment to dependence on oil, foreign and otherwise. Scary Science We are seeing such staggering figures as ... scenario last year in a global warming report in which they estimated a possible 6.4% increase of greenhouse gasses by 2099. One problem lies in the developing countries that make up ...

• Word Count: 708
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• Grade Level: Undergraduate

... why such violence occurred between men and women who supposedly loved each other are untrue. Every minute in the United States, four women are beaten by a significant other. More than half of all female homicide victims in 1993 were killed by a current or former partner. The Handbook of Family Violence identified five major types of family violence and ranked spouse abuse ... ...

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• Grade Level: Undergraduate

... will change dramatically over the next year or two. The hope for these changes is that the developments will reunite the industry. Up to this point, the Net has been almost entirely about viewing content or buying products over the Web through a browser and a personal computer. In the next wave, the browser will ... The Internet will be less about going to big sites like Yahoo and Amazon.com and more about using specialized pieces of software that connect to the Net. Current examples of these types of software include Real Player, Napster, and the Miller Lite Beer Pager. Once one of the...

• Word Count: 877
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... estimate there will be rove eighty million users by the end of 1997) could the Internet overload? Even though no one predicted the popularity of the net, some are quick to foresee the downfall or doomsday of this fade. The demand continues to rise and is now so great that technological improvements are ... continually needed to handle the burden, that's been created from all of the people using the net. There are many things that can lighten the load that's need slowing down the Internet. First, it needs to have a lot better organization because ... , and video because text takes a lot ...

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... the internet can be used for. You could read documents and obtain projects and reports from anywhere in the world through your computer. The downside to conducting business over the net is the possibility of a hacker infiltrating private documents and using them for whatever he/she pleases. The internet can have a good influence on society as well as a bad one. On ... of bad stuff too, the stuff you hear about most often on the news or in magazines. The internet is one of the few uncensored forms of mass communication. The net is loaded with pornographic images and movies as well as dir...

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... reach the success in business sector.To use the internet is a very good way for the advertisement and it is a big comfort for the users and customers.But the net is still not secure for people, who gives their important and special informations(i.e. credit card number,bank account number, password..). We reach this solution from our experiences.For instance ... and numbers which can makes you very rich. But of course, to do this you have to know the "bugs"(weak points and some mistakes in the net.) very well and you have to hide yourself verywell,because you ll be a criminal. If you sear...

• Word Count: 398
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• Grade Level: High School

... correct, as suggested by Zajonc's Drive theory and Triplett's study of social facilitation. Therefore, the hypothesis is that participants will achieve significantly quicker reaction times when being observed than when they are not. The null hypothesis is that there will be no significant difference in the results achieved ... on scores. Results Fig. 1 Fig. 1 shows a comparison between the scores attained in both conditions. 7 out of 16 participants (44%) achieved faster reaction times when they were in front of an audience. Mean - With Audience Mean - Without Audience 46.28 44.51 The m...

• Word Count: 2002
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• Grade Level: High School

... this experiment potato juice was used). We hypothesized that changing the temperature and pH from within the optimal range would disrupt the reaction. We also hypothesized that because enzyme and substrate concentrations in a reaction are proportional to each other, the reaction will occur at a speed proportionate to the amount of enzyme/substrate present. Methods and Materials: In this experiment four different environmental ... by taking readings of absorbance on a spectrophotometer set at 420nm (note: all readings were taken at this setting). To find the effect of enzyme concentratio...

• Word Count: 1327
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• Has Bibliography
• Grade Level: High School

... energetic molecules succeed and reactions will be slow. If the activation energy needed is not very high then more collisions will be successful and the reaction will take less time. Activation energy is the minimum kinetic energy needed. Reactions need energy to occur. The molecules are moving because they ... one side of a boiling tube (opposite side to where I am looking) and looking at the cross at eye level. The container in which the reaction takes place will also effect the time it takes for the cross to disappear. If I use a boiling tube with a small diameter than a large ... ...

• Word Count: 1509
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• Grade Level: High School