-
Earths Surface Organic Matter
3,264 wordsAdhesion: Holding surface together with an adhesive Advance: The work of excavating as mining forward in an entry and in driving rooms; to extract all or part of an ore Agglomeration: A concentration process based on the adhesion of pulp particles to water in ore benefaction Alloy: A substance having metallic properties and being composed of two or more chemical elements of which at least one is an element of metal Amalgamation: The production of an amalgam or alloy of mercury Anemometer: An ins...
Free research essays on topics related to: ore, organic matter, earths surface, compressed air, chemical properties -
Digital Subscriber Line Pacific Rim
1,865 wordsThe accelerated growth of content rich applications and online gaming, which demand high bandwidth, has changed the nature of information networks. High-speed communication is now an ordinary requirement throughout business, government, academic, and home office environments. Internet access, telecommuting, and remote LAN access are three of the clearly defined services that network access providers are offering now. These rapidly growing applications are placing a new level of demand on the tel...
Free research essays on topics related to: pacific rim, telephone companies, service providers, cost effective, digital subscriber line -
Wilson Disease Patients Signs Of The Disease Wilson's
775 wordsWilson's Disease is a genetic disorder that is fatal unless detected and treated before serious illness develops from copper poisoning. Wilson's Disease affects one in thirty thousand people world wide. The genetic defect causes excessive copper accumulation. Small amounts of copper are essential as vitamins. Copper is present in most foods, and most people get much more than they need. Healthy people excrete copper they don't need, but Wilson's Disease patients cannot. Copper begins to accumula...
Free research essays on topics related to: hepatitis, side effects, liver, copper, wilson's -
Aluminum Foil Magnetic Force
1,253 wordsSummary of Investigation An investigation was carried out to find out the relationship between the force created in a wire (or solenoid) when current flowed through it and the force from gravity. This was investigated by connecting a solenoid up to a variable power pack and then placing a light ring of either copper or aluminum around the solenoid. When the current flows through the solenoid, a magnetic force created from the solenoid should make the ring 'jump' up or levitate. When carrying out...
Free research essays on topics related to: power supply, magnetic field, aluminum, aluminum foil, magnetic force -
One Of The Most Important Desalination Plants
910 wordsNickel is one of the most important elements on the periodic table. It has plenty of history, as well as a huge importance to society. Its has unique chemical, physical, and geological properties. Nickel is used commercially in abundance, as it is used anywhere from simple art products such as ceramics to complex structures such as tubing for desalination plants. It is even used in the American five-cent coin, the "nickel." Nickel was discovered by Axel Fredrik Cronstedt, in Sweden, during the y...
Free research essays on topics related to: five percent, desalination plants, one of the most important, five cent, periodic table -
An Introduction To Fiber Optics Technology
1,471 wordsThroughout time, speed and efficiency in the telecommunications industry has progressed at a rapid pace due to fiber optic technology. In 1979, AT& T revolutionized the telecommunications industry by producing a medium for data transmission which used light, called fiber optic cable. This medium created a bandwidth of 44. 736 Mbps and could multiplex 672 trunk circuits onto one fiber (Cole, 2000). However, this invention was only the beginning of a great addition to telecommunications, one t...
Free research essays on topics related to: fiber optics, upper saddle river nj prentice, saddle river nj prentice hall, copper wire, fiber optic cable -
Gigabit Ethernet Fast Ethernet
1,632 words... Very little delay is introduced by this quick movement of data across the repeater; thus two Class II repeaters are allowed per Fast Ethernet segment. Class I repeaters are slower (140 bit times for its round-trip delay) compared to Class II (92 bits times or less), but provide translation that ensures compatability. Class II repeaters, although faster, support only a single technology. Standard topologies for 100 Base T networks are one Class I repeater, which allow network diameter of 200 ...
Free research essays on topics related to: fast ethernet, multi mode, mode fiber, gigabit ethernet, wide spread -
Average Life Expectancy United States Of America
1,411 words? The Gangs Overpopulation? The battle to feed all of humanity is over. In the 1970? s the world will undergo famines-hundreds of millions of people are going to starve to death in spite of any crash programs embarked upon now. At this late date nothing can prevent a substantial increase in the world death rate, although many lives could be saved through dramatic programs to? stretch? the carrying capacity of the earth by increasing food production. But these programs will only provide a stay of...
Free research essays on topics related to: united states of america, average life expectancy, developed nations, infant mortality, carrying capacity -
Vinegar With Salt Plating May Be Found Electroplating
747 wordsThe problem was Electroplating ELECTROPLATING The problem was to discover which electrolyte is the best. An electrolyte is a liquid you electroplate in. Water, vinegar, and vinegar with salt stirred in it were the three electrolytes used. Which is the best electrolyte for copper plating a nickel? Is there a difference between these electrolytes or are they all the same? Electroplating is the process of coating with metal by means of electric current. When electroplating is really used it is more...
Free research essays on topics related to: electric current, copper, nickel, vinegar, metal -
Carbon Atoms Specific Heat
4,299 wordsI am going to investigate the difference in enthalpy of combustion for a number of alcohols, the enthalpy of combustion being the enthalpy change when one mole of any substance is completely burnt in oxygen under the stated conditions. I will be attempting to find how the number of carbon atoms the alcohol contains effects the enthalpy change that occurs during the combustion of the alcohol. Method I plan to measure the enthalpy change by burning the alcohol, using a spirit burner, I will then u...
Free research essays on topics related to: specific heat, temperature increase, carbon atoms, heat energy, chemical reaction -
Fiber Optic Cable Fiber Optics
635 wordsE-Tek Dynamics Fiber Optics History E-Tek Dynamics was founded in 1983. The company started out as a research and development firm for the Department of Defense and NASA. E-Tek started with only a few typewriters and a few hundred dollars; little did they know that the company was on its way to being one of the leaders in communication. The first task of this new company was to set up high-speed communications cables for NASA. (web) Problem There are many problems that we must overcome. The cabl...
Free research essays on topics related to: figure 3, fiber optic cable, fiber, pipe, fiber optics -
Fiber Optic Cable Twisted Pair
2,612 wordsTable of Contents 1. 0 Intro to Fiber Optics 2. 0 Fiber Construction Introduction to Fiber Optics Today many communications companies are replacing their copper carrier wires with fiber optic cables. A fiber optic cable is capable of transmitting laser light across thousands of miles and can carry many more messages at the same time than the copper wire of equivalent diameter. With the relentless pursuit of bandwidth, fiber optic cabling is being deployed at an ever increasing rate. This cable, ...
Free research essays on topics related to: fiber optics, fiber optic cable, twisted pair, gigabit ethernet, multi mode -
Figure 2 Figure 3
1,254 wordsFire Optics Pag Preface Fibre optics is an emerging form of technology that uses minute fibres of glass or plastic to transmit light. The light source and method of delivery can be modified to transmit computer data, such as images and sound, or simply luminescent light. In recent years, the advancement of fibre optic technology has increased greatly. Many of these advancements, along with an explanation of the technology and societal implications will be discussed within this essay. Introductio...
Free research essays on topics related to: optical, figure 3, figure 2, fibres, figure 1 -
Bow And Arrow Birds Of Prey
3,616 wordsThe Hopewell Studied since the discovery of the conspicuous mounds in Ross County Ohio, the Hopewell have been an archaeological enigma to many. The tradition is so named for the owner of the farm, Captain Hopewell, where over thirty mounds were discovered. Earlier studies focused more on the exotic grave goods such as precious metals, freshwater pearls, many of these objects had come from all corners of the continent from the Rocky Mountains to the Gulf of Mexico, and north to the mid-Atlantic ...
Free research essays on topics related to: precious metals, gulf of mexico, rocky mountains, bow and arrow, birds of prey -
President Of The United States Elected President
900 wordsIn History Of Photography Daguerreotypes In 1839 the Academy of Science in Paris, France made an announcement that would change our view on the world and ourselves forever. An artist named Louis Jacques Mand Daguerre and a amateur french scientist had developed a process by which a permanent image could be printed on a silver plated sheet of copper and the process could be duplicated and used commercially. France decided to give this gift to the world and thus the first Daguerreotype was born. A...
Free research essays on topics related to: william henry, president of the united states, elected president, paris france, light sensitive -
Directly Proportional V V
1,170 wordsIf Varying Currents Affects The Loss In If Varying Currents Affects The Loss In Mass At The Electrodes To find out how varying the current affects the loss in mass of the anode and the gain in mass in the cathode Introduction - Purifying Metals It has been found that when a copper solution is electrolyzed using copper electrodes, the anode looses mass and the cathode gains mass. This is an investigation into how varying the current affects the change in mass of the electrodes during electrolysis...
Free research essays on topics related to: electrodes, directly proportional, anode, v v, experiments -
Prince Edward Island Precious Metals
3,239 wordsCanadian Mining Facts Annual In 1997, Canadian mining was hard hit by the current metal downturn that began with a dramatic drop in the price of gold. However, despite a larger-than-expected number of mine closings, the year ended with 21 mine openings (11 mines and 10 re-openings) and 20 mine closings (9 suspensions and 11 closures). Overall, Canadian mines incurred a substantial net gain of some 31 485 t of daily ore production capacity and some 25 mining jobs in 1997 through mine openings and...
Free research essays on topics related to: precious metals, mining industry, largest producer, prince edward island, worlds largest -
Positively Charged Copper Wire
2,325 wordsAim: -To find out what factors affect the resistance of a wire (besides current of temperature. ) We must use two different variables. Variables: -Variables Chosen Variables Length of wire. Thickness Type of wire. Chosen Variable: -I have chosen length of wire as one as my variables because it will give me a good range of results. I will be able to compare the results from the shortest wire to the longest. I will start at 100 cm then I will take 10 cm off each time until I get to 50 cm. (100, 90...
Free research essays on topics related to: voltage, copper wire, resistance, wire, positively charged -
Heavy Metals Metal Ions
2,146 wordsThe inhibitory effects of a mercury compound, silver nitrate, and copper sulfate on Bacillus cereus, Escherichia coli, Micrococcus lotus, and Pseudomonas putin Introduction Certain heavy metals can have harmful or inhibitory effects on microorganisms, a process known as oligo dynamic action; for example, some heavy metal ions accumulate in cellular proteins leading to protein denaturation and ultimately cell death (Biology 108 lab manual 2001). A consequence of this is that heavy metals can affe...
Free research essays on topics related to: heavy metals, metal ions, heavy, lab manual, gram negative -
Acres Of Land Thousand Acres
245 words1234 N. Array Vista Dr. E Enterprises, After extensive research of ten possible mining sites, Turn? Co. purchased thirty-six hundred acres of mineral rights. At every site we ran several tests determining the copper content. We generally purchased land from every site that had some copper in the ground. After surveying the land for a general description, we obtained mineral rights and took samples of the rocks. We checked the ions found for traces of copper. When copper was found we obtained ass...
Free research essays on topics related to: acres of land, didn t, thousand acres, purchased, copper
Customer center
