Temperature Essay Examples

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Responses Of Australian Ectothermic And Endothermic Organisms To Changes In Ambient Temperature

699 words - 3 pages Red Kangaroo: Macropus RufusThe Kangaroo is an endotherm. Endotherms generate heat from their body's metabolism. So their internal body temperature is independent of the external temperature. Endotherms eat more food than ectotherms. This higher food intake results in an increased level of metabolism, which is required to produce heat.The Red Kangaroo inhabits inland plains throughout Australia. They prefer open plains where trees and bushes are scarce.The fur on Kangaroos maintains an insulating layer of trapped air that slows down heat exchange with the environment. The thickness of the air layer can be increased in cold conditions by contracting muscles that lift the fur away from the VIEW DOCUMENT
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Financial Planning Process In An Engineering Business

1253 words - 6 pages 1 The International Standard Atmosphere (ISA) Mustafa Cavcar* Anadolu University, 26470 Eskisehir, Turkey Nomenclature a = speed of sound, m/sec g = acceleration of gravity, m/sec2 h = altitude, m or ft p = pressure, N/m2 or hPa R = real gas constant for air, 287.04 m2/°Ksec2 T = temperature, °K or °C ρ = density, kg/m3 Subscripts 0 = standard sea level conditions 11 = tropopause caonditions Abbreviations ICAO = International Civil Aviation Organization ISA = International Standard Atmosphere MSL = Mean Sea Level PA = Pressure Altitude 1. Standard Atmosphere Modeling For purposes of pressure altimeter calibrations, aircraft and rocket performance and their design, and so VIEW DOCUMENT
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The Man The Myth Essay

426 words - 2 pages Richard KazmiMr.HickeyChemistry3/19/13Calorimetry Lab ReportPurpose: Calorimetry is the measurement of the heat flow into or out of a system for chemical and physical purposes. The purpose of this lab was to use calorimetry to find how much heat is absorbed or released when NaCl is dissolved in water. In this case, we will find the heat coming out of the system, in a chemical process.Hypothesis: Once the sodium chloride is put into the water, the temperature of the water will rise.Procedure:1. Fill up a beaker with 25ml water2. Pour water into Calorimeter (we had 35 ml)3. Put in 2 grams of NaCl4. Close the top5. Put in Thermometer6. Record starting temperature7. Use the stirrer to help stir VIEW DOCUMENT
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In Specific, The Mass Of A Volatile Unknown Liquid Was Discovered With The Use Of The Calorimeter

1015 words - 5 pages used.Trial 1 Trial 2Mass of stoppered test tube plus metal (grams) 77.8 76.9Mass of test tube and stopper (grams) 47.3 46.8Mass of Calorimeter (grams) 48.1 47.7Mass of Calorimeter and water (grams) 84.6 87.3Mass of Water (grams) 36.5 39.6Mass of Metal (grams) 30.5 30.1Initial temperature of water in calorimeter *C 21.1 20.4Initial temperature of metal (assuming 100*C unless directed to do otherwise) 100 100Equilibrium temperature of metal and water in calorimeter 26 25Change in water temperature 4.9 4.6Change in metal temperature 74 75qH2O 747.59 761.43Specific heat of the metal (Eq. 3) .3312 J/g*C .3373 J/g*CApproximate molar mass of metal 75.5 74.12Unknown No. Unknown.Sample Calculations For VIEW DOCUMENT
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Ceramic Essay

658 words - 3 pages mixing done by ball milling or attrition milling for a short timeCalcinationDuring the calcination step the solid phase reaction takes place between the constituents giving the electroceramic phase.The calcining temperature influences the density and electromechanical properties of product.The higher the calcining temperature, the higher the homogeneity and density of the final ceramic product.After calcining, the lumps are ground by milling.Compaction (for pellet formation)The desired shape and a minimum green density can be provided by various techniques including powder compaction, slip-casting, and extrusion.The green bodies - minimum density before sintered.The choice of the method depends VIEW DOCUMENT
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Global warming Essay

386 words - 2 pages Marisa BustosMrs. RossEnglish 09807/20/2011Global WarmingGlobal warming is the increase of the average temperature of the earth's atmosphere that has become a serious issue in our environment within the last couple years. We should care and pay more attention to all the disasters that are now going on in real life, affecting the world into different areas. But we assume, none the less, that it is not too late: if we do the right things within the next couple of decades, we will be available to stabilize all damages that global warming is causing around the world. High temperatures, climate and sea-level have become a serious problem to the global warming but many people don't believe it's VIEW DOCUMENT
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United Nations Debate, France. Class: World History II. Facts on France

320 words - 2 pages UN Project, FranceGeographyFrance is located in Western Europe, bordering the Bay of Biscay and English Channel. Between Belgium and Spain, Southeast of the UK; bordering the Mediterranean Sea, Between Italy and Spain.Arable Land: 33%The extent of France's coastlines is 3,427 kmThe climate in France varies between each region. The true temperature maritime climate is found in the west near the coasts.The average temperature is 45º F in February, and 61º F in July.France receives approximately 32" of rain each year.The capitol of France is Paris. In January of 2000, Paris had about 10.3 million inhabitants.PopulationJanuary 2000, Metropolitan France had a population of 58.7 million VIEW DOCUMENT
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yeahh Essay

408 words - 2 pages Tim CollyerVIRTUAL FIELD TRIP: answer the following questionsat the following web site:http://www.ricoasts.org/discovery/rockyshore/rshome.htm1.Where is Beevertail Rocky Shore?Jamestown, Rhode Island2.aHow do you think Beavertail Point was formed?It was formed by a complex system of faultsb.What type of rocks do we expect to see on our Rock Walk?Shale, phyllite and quartz3.Why do you think it would be difficult to live on the rocky shore?Organisms are constantly dealing with the temperature changes, changing of the tides and the strong ocean waves.4.aWhy do you think there are different plant and animalspecies that live in each zone? (Contains 6 mini-pages)b. Describe the location ofeach of VIEW DOCUMENT
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Haber Process Essay

526 words - 3 pages concentration of Nitrogen that would be a stress. The system will have to respond in order to undo the stress of increased Hydrogen. The forward process uses up Hydrogen and Nitrogen while the reverse process increases the presence of Nitrogen and Hydrogen.The industrial conditions for producing ammonia the temperature must be 450ºC to 500ºC. The forward reaction is exothermic. If we remove heat as a product will result in the equilibrium mixture making richer ammonia. Since we want ammonia from the Haber process, the reaction conducted at 450ºC. Because all reactions go faster if the temperature is raised. Reversible reactions, such as the Haber process, rasing the temperature will make VIEW DOCUMENT
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Thermochemistry Essay

817 words - 4 pages of a 1M solution, at 1 atm and 25 oC.Heats of formation are usually negative quantities.Heat is a way of transferring energy between a system and its surroundings that often, but not always, changes the temperature of the system. Heat is not conserved, it can be either created or destroyed. In the metric system, heat is measured in units of calories, which are defined as the amount of heat required to raise the temperature of one gram of water from 14.5oC to 15.5oC.In the SI system, the unit of heat is the joule.Heat CapacityThe heat capacity of a substance is the amount of heat required to raise the temperature of a defined amount of pure substances by one degree (Celsius or Kelvin). The VIEW DOCUMENT
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Jet Streams

465 words - 2 pages Jet streams are relatively narrow corridors or very strong winds within the atmosphere. The most prominent jet stream is located directly above the polar front in the upper troposphere between the mid-latitude and the polar troposphere. Because of its close association with the polar front this jet stream is known as the polar front jet stream (Williams).The polar jet stream is not well defined around the globe. However where surface temperature gradients are steep, where the polar front is well defined, jet stream winds are stronger. These segments of strong winds are known as jet streak. The strongest jet streaks develop along the east cost of America. The jet streaks are most predominate VIEW DOCUMENT
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The Rate Of Photosynthesis

3760 words - 16 pages (B) + 6H2O (L)The main factors that affect photosynthesis are:The amount of Carbon dioxideThe temperature of the environmentThe amount of light availableAvailability of waterGreen plants obtain their raw materials for the above reaction from the following resources.Carbon dioxide from the air which has 0.4% concentrationLight from the sun (solar energy)Temperature depending on the environmentWater that is absorbed from the soil via the roots for land plants. Aquatic plants from their habitat where they liveThe rate of photosynthesis will depend on all of the above factors. Photosynthesis is a chemical reaction, and enzymes act as catalysts to speed up the reaction. Enzymes work best at an VIEW DOCUMENT
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Science Lab Report On Finding The Boiling Point Of An Unknown Substance

494 words - 2 pages recording the temperature every 30 seconds or looking at the stopwatch. By changing our shifts every 5 minutes, this will make us to have a fair chance of working. We than turned of the fire once the solid melted.Time Temp0:30 211 221:30 222 222:30 233 243:30 254 274:30 295 315:30 336 356:30 377 397:30 448 498:30 519 539:30 5410 5710:30 5911 6311:30 6912 8012:30 86Discussion and ConclusionI think the unknown substance is naphthalene, for it has the highest melting point, matching the data we collected. I think we have been doing well on it, without doing anything things wrong. Also we should have turned the fire down a little bit, for the temperature suddenly rised from 80 to 86 degrees.Modifications to Original Plan:I got an idea of doing it in turns during the setup for the investigation. Since Sam agrees in my idea, we changed our way of working.Evaluation:Our method used here was fine, if we have turned the fire smaller, there, it may be slow, but the information is more accurate. VIEW DOCUMENT
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Global Warming Controversy

1230 words - 5 pages climate trends include: global warming, global coolingPast climate behavior, being studied in determining normal variation as well as recent climate: historical temperature record, temperature record of the past 1000 years, satellite temperature recordCauses of recent climate trends: attribution of recent climate changeSupporters' positionSupporters of the global warming theory assert that:the IPCC reports correctly summarise the state of climate sciencethe historical temperature record shows a rise of 0.4-0.8 °C over the last 100 yearsthis rise is unprecedented in the temperature record of the past 1000 yearsclimate models can reproduce this trend, but only when using greenhouse gas VIEW DOCUMENT
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Analysis Of Cutaneous Sensation And Reflexes By Examining Receptive Responses

3163 words - 13 pages sunlight, or hearing a sharp, painful noise. All of these examples deal with multiple receptors of the body receiving input in receptive fields. A receptive field is an area where a receptor is sensitive to a stimulus (Ramachandran 1993). A sensation is the response that a subject would feel from the stimulus. A prolonged sensation can cause an adaptation in the body, such as the skin for changes in temperature (Benzinger 1959). Adaptation is a mechanism of the body to stop responding to a prolonged stimulus (Meyer et al. 2001).Looking at the skin specifically, many receptors join to regulate the homeostasis of the body. Receptors for different degrees of pressure are throughout the skin. These VIEW DOCUMENT
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Global Warming

1025 words - 5 pages Our world is the beginning and the end. Before humankind our Earth was healthy and its inhabitants did not have to worry about the ozone layer or Earth's temperature increasing. Now, along with our many everyday stresses, we have worries about our world heating up; also known as global warming.The sun and the cycle of the "greenhouse effect" is what keeps all of humankind living. The sun aides the weather, climate, and surface temperature of the Earth. Once our Earth receives this energy it radiates it back into space. The "greenhouse effect" is what helps to make our Earth's temperature comfortable and not too low, basically, it is what keeps our world alive and functioning (Global Warming VIEW DOCUMENT
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Seed Germination

1125 words - 5 pages Aim:To test which condition (external or internal) best suits the growth of seed germinationHypothesis:I would assume that the seeds that were placed outside in their natural environment would have a better growth pattern than that of the internally grown one due to the fact that its exposure to nature's day/night length, natural sunlight rain and temperature are the necessary elements for successful seed germination.Apparatus:4 Containers (preferably 0mm x 200mm x 100mm)Small bag of potting mixPacket of pea seedsRuler for measuring seed growthWatering canMethod:(1) Pour potting mix into two exact size containers (filling ¾ of the container)(2) Place four seeds (25mm deep) in each VIEW DOCUMENT
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New York Baseball Is Hot, Its Climate Is Not

395 words - 2 pages As the New York Yankees and New York Mets face-off in another historic "Subway Series," New York baseball and Senatorial politics make New York a hot topic in national conversation. That combination must be nirvana for someone of George Will's sensibilities. But "hot" as New York is in Autumn 2000, the Big Apple's climate definitely is not heating up. The October monthly temperature record from Central Park - that world famous swath of greenery at Manhattan's heart - shows a slight cooling in both its maximum and minimum temperatures over the past fifty-six years (see Figure 1). The trend is -0.018°C per year for minimum temperatures. It's -0.035°C per year for maximum temperatures VIEW DOCUMENT
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Lab: latent heat of vaporisation

524 words - 3 pages water every 2 minutes to be able to graph ∆m vs t with fewer uncertainties. The closer the time interval, the smaller the uncertainties.iii) Start the time as soon as the water starts to boil at a constant rate (temperature is not rising any more, bubbles rising at a constant rate). Let the experiment continue for approx. 30 min. to get enough raw data. At the end of the experiment, remember to stop the time and measure the final mass of the water. Try to keep room temp. as constant as possible during the experiment (close all windows and doors to prevent draughts). By preventing temperature change in the surroundings, we prevent larger manipulation of the data by the room temp.iv VIEW DOCUMENT
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The Big Bang

524 words - 3 pages UniverseThe Universe is still expanding today and it is believed that in the future, the Universe will stop expanding and deflate to the origin of the big bang.Start of the Big BangIn less than a second, the Universe grew from the size of an atom to the size of a galaxy.It is estimated that the temperature of the entire universe was 1000 trillion degrees Celsius a fraction of a second.How Big is the Big Bang?Formation of the UniverseAs the Universe expanded and cooled, energy changed into particles of matter and antimatter which destroyed each otherOver the next three minutes, the temperature dropped below 1 billion degrees Celsius.Protons and neutrons survived and started to form when the VIEW DOCUMENT
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Homeostasis

485 words - 2 pages situations where the breathing rate is irregular or unusual.Muscular activity requires a source of energy. When muscles are working aerobically, there are several products; heat, carbon dioxide, and water. The heat produced by active muscles helps to maintain body temperature, so muscle is contributing to heat homeostasis. However, if more heat is being produced than is needed, as for example during vigorous exercise, the excess heat has to be lost from the body to prevent a harmful rise in body temperature and the potential development of heat stroke. Therefore, homeostasis helps by controlling the bodies physical output and the stress that is put upon muscles, which keeps the muscles from being VIEW DOCUMENT
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Root Beer

434 words - 2 pages dissolve the extract in the next steps.9) Half fill the bottle with fresh cool tap water (the less chlorine, the better).Rinse in the extract which sticks to the tablespoon and funnel. Swirl to dissolve the ingredients.10) Q.s. [fill up] to the neck of the bottle with fresh cool tap water, leaving about an inch of head space, securely screw cap down to seal. Invert repeatedly to thoroughly dissolve.11) Place at room temperature (RT) until the bottle feels hard, about three to four days. Move to a cool place. If you leave it in a warm temperature longer than two weeks, you risk an explosion...12) Move to a refrigerator overnight before opening. VIEW DOCUMENT
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Global Warming

863 words - 4 pages in other forms as well such as heat which is called infrared light. The Earth needs to absorb and reflect balanced amount of energy in order to have an inhabitable temperature. If too much energy leaves the earth, there is a possibility of another ice age but if too much energy stays that's Global Warming.The root cause of energy staying back on Earth is due to the atmosphere composition. A compound that plays a major role in causing this greenhouse effect is carbon dioxide. Carbon dioxide is one part carbon and two part oxygen and burning wood or gasoline in cars can cause release of this compound. The jumble of carbon dioxide and the atmosphere retains the infrared light as the carbon VIEW DOCUMENT
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Resitances Of A Wire:It Is About How Length Effects The Resistance Of A Wire

954 words - 4 pages Resistance in a wirePlanning -The resistance of a wire can be affected by certain factors:Length of wireCross sectional arearesistivity (type of metal)Type of wireTemperatureI chose to investigate how length affects the resistance in a wire. This means that the other factors (variables) must be controlled. This means I must keep the same type of wire, the same material of wire (a preliminary experiment will help determine this), and the same cross sectional area and maintain a constant temperature of the wire as any increase in temperature increases resistance. These factors must me kept controlled to ensure a fair test.Preliminary ExperimentI conducted a preliminary experiment to determine VIEW DOCUMENT
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Locomotor Behavior Of Sarcophaga Bullata (Flesh Fl

1619 words - 7 pages . They help in biological research and in criminal investigations but they also carry diseases that can harm humans.The locomotor response is greatly dependent on inherited behavior also known as innate behavior. This means that the stimulus appears to trigger a fixed response that does not vary according to the previous experience of the organism, commonly found in invertebrates. Two terms, taxis and kinesis can describe innate locomotor responses. Taxis is an automatic movement directly toward or away from a stimulus. Kinesis is random movement, caused by a stimulus but not necessarily oriented by it. The ability for a flesh fly to reproduce is greatly dependent on light and temperature VIEW DOCUMENT
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Study Notes On The Structure And Function Of Various Groups Of Molecules Including Proteins, Carbohydrates, And Lipids (Fats)

751 words - 4 pages -Hydrocarbons with a carboxyl group at one end of the chain-Glycerol and fatty acid join by ester linkage-Oils, waxes-Types of triglycerides-Saturated fatty acids-Has a single covalent bond between each pair of carbon atoms-Each carbon has two hydrogens bonded to it-Solid at room temperature, unhealthy-Animal fat-Monounsaturated fatty acids-Has one double covalent bond and each of the two carbons in this bond has only one hydrogen atom bonded to it-Liquid at room temperature, healthy-Vegetable oil-Polyunsaturated fatty acids-Has two or more double covalent bond formed by the removal of hydrogen atoms from the carbon skeleton-Just like a monounsaturated fatty acid-Know the Triglyceride VIEW DOCUMENT
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Title: Dear John Write a letter explaining the environmental similarites and differences during fall and winter between Boston and a tropical place

543 words - 3 pages and wet. (That is my opinion) However, many people love summer like my mom.The third season is my second favorite season. It is cool and beautiful. The leaves on trees are a rainbow of colors. The most common colors of leaves on non-evergreen trees during fall are yellow and red. After a while, the leaves slowly fall to the ground. On windy days, I find my front lawn covered with leaves.The trees are in fact not dying. They are just unable to keep the leaves when frost is "growing" on the leaves. That brings up another point; frost only "grows" on things when the temperature is below thirty-two degrees Fahrenheit. It is very cold at night during fall. If you see any leaves that are not green VIEW DOCUMENT
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Medical Experiments Of WWII

550 words - 3 pages limits of a human's toleration to altitude. Sun lamps were just used as pure torture. One young homosexual victim was cooled to unconcious repeatedly then revived with sun lamps until he was emitting large amounts of sweat. After several sessions, the patient died. Internal irrigation was when a victim was frozen and had water heated to a scalding temperature forcefully irrigated into the stomach, intestines, and bladder. The treatment killed all of it's victims. The hot bath was when a victim was placed in a tub of warm water while the temperature was slowly increased. This method was called the "best". It caused the victim to go into shock if they were warmed to quickly, which lead to death VIEW DOCUMENT
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Potato

511 words - 3 pages A star is a ball of gas which releases energy by a nuclear fusion process and are contained in galaxies. Big clouds of dust and gas called nebulae are the birthplace of stars. Clumps are formed by the gas and dust spiraling around and they grow bigger and contract. During so, the clumps become very hot and dense and this is called a Protostar; the first part of the sequence of a star. Eventually the temperature rises enough for nuclear fusion reactions to take place. Finally, a new star is born. Going into a long stable period, it will be called a Main Sequence Star. How long a star's main sequence depends on its size. In an average star's main sequence, it will last for about 10 billion VIEW DOCUMENT
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Creative Writing entitled 'The First Incident'- The stimulus of the genre of horror - later used to inspire a GCSE drama play

360 words - 2 pages '.Focussing my eyes as best I could in the dark, I realised I was seeing my reflection, however from what I could recall I was not wearing a red nightgown when I climbed into bed that evening. A double take confirmed this, as a slight girl, age unknown stood in front of the window in my room. Dressed in attire of a red nightgown, yet otherwise white. It appeared that she was staring into the garden for some reason I could not confirm. Yet as I watched her, I succumbed to the haul of sleep, feeling no menace about her.After I awoke, some hours later, that feeling immediaty changed.The temperature in the room decreased almost 20 degrees as she pivoted from the window and stared directly at me.At first you could say I was stunned, bewildered at her reason for being here. But as she began to approach the bed, her face changed from its calm facade to a truly malevolent portrait. At about the same time, I remember a music box of mine commencing a sweet tragic melody. A melody faintly reminiscent of Swan Lake, melnacholy, chilling and foreboding. VIEW DOCUMENT
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Volcanoes, What is a Volcano,The types of volcanoes,How are Volcanoes formed,How is magma turned to lava

397 words - 2 pages THE Types of volcanoesThere are three types of volcanoes shield, cinder cones and composite volcanoes. Shield volcanoes are large volcanicForms with that are broad at the top and have low, sloping sides. This type of volcano is caused by slow, basaltic lava flows.Cinder cones are cone shaped volcanoes some are no more than a few meters and others get as big as high as 610 meters sometime more. Most of the tallest volcanoes are composite volcanoes. These form from quiet eruptions of fluid lava followed by explosive eruptions of viscous lava.How is Magma turned into Lava?Extremely high temperature and pressure cause the rock to melt and become liquid rock or magma. When a large body of magma VIEW DOCUMENT
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The life of a the two best friends

404 words - 2 pages structural parts within the house.This is the person responsible for ensuring public safety and to serve the clients interests in meeting the correct/appropriate standards and legal codes.This is the person responsible for engineering, structural design, integrity of an entire system such as a building and analysis.This is the person responsible for ensuring that buildings and bridges are built to be strong enough and stable enough to resist all appropriate structural loads such as earth pressure, temperature and traffic in order to prevent the loss of life or injury.They ensure buildings and other structures do not bend, twist, collapse or vibrate and remain strong and secure throughout VIEW DOCUMENT
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Why The Word Trade Centers Fell

376 words - 2 pages tower to fall down. The planes, because they just took off, were full of jet fuel. This allowed for a much longer fire at a more intense temperature. As the fuel burned, it engulfed all of the contents of the office; hence, the fire intensified. So, now, with 7 or more stories stacked atop each other, all of the office supplies, and the internal masonry blazing, the steel structure throughout the tower began to weaken. The weakened structure, due to its uniqueness, collapsed internally.The world trade towers had steel columns tightly spaced along the perimeter of the building and the same inside the buildings core arrangement. Fires burn hottest in the center. As this raging fire burned and as VIEW DOCUMENT
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air pollution

338 words - 2 pages it lets in more harmful radiation from the sun. At the same time, our polluted atmosphere is becoming a better insulator, preventing heat from escaping back into space and leading to a rise in global average temperatures. Scientists predict that the temperature increase, referred to as global warming, will affect world food supply, alter sea level, make weather more extreme, and increase the spread of tropical disease. Most air pollution comes from one human activity: burning fossil fuels, natural gas, coal, and oil to power industrial processes and motor vehicles. Among the harmful chemical compounds this burning puts into the atmosphere are carbon dioxide, carbon monoxide, nitrogen oxides VIEW DOCUMENT
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Architecture - What Makes A Buildling Green

4150 words - 17 pages , environment, water conservation and user of recycled products and renewable energy can be defined as "Green".Energy Efficient Windows:WoodA natural product, it is said that the industry grows thousands of windows a year. A moderate insulator (R1 per inch), it requires some maintenance (stain or paint) to prevent rot from moisture build-up. It is warm to the touch in the coldest winters and room temperature in the summer.·Wood Window AssociationVinylA product of the plastics industry, it uses a nonrenewable petroleum source for extrusion. The final product is usually non-paintable, but does offer a lifetime free maintenance. Some radical climatic changes over time may stress the material VIEW DOCUMENT
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Global WArming

3442 words - 14 pages it is stored as limestone and marble, as gas and oil and coal, and is in organic material in the soil. Not only do these gases make up our atmosphere, but they also keep the temperature of the earth stable. Carbon dioxide absorbs the radiation that would otherwise escape the earth. By adding oxygen and taking away carbon dioxide this causes the earth to be cooler than it would otherwise be. These are just two of the many gases that make up the atmosphere we live in today. The temperature in our earth is directly determined by these five gases. If not enough are in the air, then the earth is too cold, but if too many gases are released into the air, then we have the problem of things heating VIEW DOCUMENT
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Development Of Pre-Dried And Blended Lime Mortars For The Ready-Mix Market

2747 words - 11 pages in the traditional manner. Once the initial set has started the mortar must not be reconstituted in a mechanical mixer or by any other method.The setting of cement is affected by weather and will proceed more slowly when it is colder.This factor is taken into account when the mortars are manufactured but subsequentsignificant reductions in temperature may increase the retardation period and extend theworking life and will have no adverse effect on the masonry. It is inadvisable to proceed with the construction of masonry whilst the temperature is below 3ºC and falling. If the mortar freezes any frozen material or crust should be discarded.Currently Used BindersPortland cement mortar is VIEW DOCUMENT
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Acrylic Acid Plant

2524 words - 11 pages , it is assumed that the reactions occur in a fluidized bed of catalyst particles. Due to the characteristics of fluidized bed reactors, a maximum propylene conversion of 90% is possible in the reactor. The selectivity for acrylic acid/acetic acid is 13.5. The selectivity for acrylic acid/carbon dioxide formed in the combustion reaction (Reaction (3)) is 1.6. Reaction Section The PFD for the reaction section is given in Figure 1. The propylene is stored in tanks which are not shown. There are two tanks, each holding a one-day supply, one in a filling mode and the other in a feeding mode. The propylene is stored at ambient temperature (which may be assumed to be 25°C) as a vapor/liquid VIEW DOCUMENT
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Chemical Equilibrium

2618 words - 11 pages colourless SCN and the yellow Fe3+ ion. Cold Light yellow- brown The solution loose some red and become light yellow- brown Decrease temperature cause an equilibrium shift to favor reaction that releases energy or heat shift in the exothermic, so the concentration of [Fe(SCN)]2+ is decreased and the color of solution is lighter. Hot Darker red- brown The color of solution has more red than the control solution Increase temperature cause an equilibrium shift to favor reaction that absorb energy or heat shift in the endothermic, so the concentration of [Fe(SCN)]2+ is increased and the color of solution is darker. 0.1M AgNO3 Lighter color The formation of white precipitate and all most VIEW DOCUMENT
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Transpiration In Plants

1309 words - 6 pages evaporate, while water is not being drawn from the roots to circulate through the plant. This will cause the plant to wilt and die. It also allows to plant to regulate its temperature, which is especially important when environments are constantly transforming. In fact, transpiration can lower the temperature of the leaf by as much as 10-15 degrees Celsius from the surrounding area. Water is vital to plant life, not just for turgor pressure reasons, but much of the cellular activities occur in the presence of water molecules and the fact that the internal temperature of the plant is regulated by water.Transpiration begins as water is drawn up from the soil through the plant roots. These roots are VIEW DOCUMENT
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The Big Bang Theory

1667 words - 7 pages , recent theoretical breakthroughs, based on theprinciples of quantum theory, have suggested that space, and thematter within it, masks an infinitesimal realm of utter chaos,where events happen randomly, in a state called quantumweirdness.4Before the universe began, this chaos was all there was. Atsome time, a portion of this randomness happened to form abubble, with a temperature in excess of 10 to the power of 34degrees Kelvin. Being that hot, naturally it expanded. For anextremely brief and short period, billionths of billionths of asecond, it inflated. At the end of the period of inflation, theuniverse may have a diameter of a few centimetres. Thetemperature had cooled enough for particles VIEW DOCUMENT
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Thermodynamics Paper

522 words - 3 pages , we look at the average values statistically over quantum probabilities. Even fundamental concepts like the energy of a system are derived as averages.New concepts arise as we talk about large systems, such as entropy and temperature. Defining these carefully from quantum mechanics allows us to make sense of the "3 Laws of Thermodynamics".There is great symmetry in the structure of thermodynamics. The six variables we look at repeatedly parallel each other in formulations of the energy. We can use a mathematical tool known as the Legendre Transform to posit alternate definitions of energy. This symmetry allows us to derive numerous relationships between the variables, and the multiple VIEW DOCUMENT
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Chinese fire bellied toad

401 words - 2 pages frogs start breeding. 1/4 of the surface should be kept 'dry' and will primarily be used as a feeding area. Put lots of floating plants in the aquarium and the frogs are going to spend a lot of time floating among these. You should keep the temperature at 68-75ºF.CallA dark, musical "OOP....OOP....OOP", separated by intervals of over 1.5 sec. combined with spherically inflated trunk and throat, revealing the colored spot on the throat. The chorus sounds creepy and solemn at the same time. Young animals call more brightly, like the older Yellow-bellied toads. VIEW DOCUMENT
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In WWI, why were conditions in France in 1916 and 1917 so difficult for the Australian Imperial Force (AIF)

393 words - 2 pages The conditions in France during WW1 for the AIF were horrendous because of the stalemate in the trenches, disease, rainy conditions and new weapons of war.The stalemate and the war of attrition took a heavy toll on the troops of the AIF. There was constant enemy fire and the constant attacks and counter attacks to attempt to make ground shattered the soldier's morale and strength. The trenches also created psychological stress and broke their spirits, soldiers often suffered from shell-shock which was little understood and treated as cowardice.Rainfall was also a major problem in the trenches. Often they would become waterlogged, lowering the temperature inside. Being in permanent wet VIEW DOCUMENT
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An Investigation Into How The Concentration Of Substrate Will Affect The Rate Of An Enzyme Controlled Reaction

4049 words - 17 pages IntroductionI am going to investigate how the concentration of hydrogen peroxide affects the rate of reaction between the hydrogen peroxide, and it's enzyme, catalase, which is found in yeast. There are many other factors which will affect the speed with which this reaction can take place.These include;-The concentration of the substrate (Hydrogen peroxide)-The concentration of the yeast solution-The temperature of both the substrate and of the yeast solution-The ph of the substrate.Key FactorI am investigating the effect on the speed of the reaction of the concentration of the substrate in this experiment. I will do this by changing the concentration of the hydrogen peroxide, and measuring VIEW DOCUMENT
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Advantages And Disadvantages Of Living In The Block Of Flats

389 words - 2 pages thinness of internal walls inside flats and to the stairwell.The other problem is also temperature and draught: Flats in large housing estates are usually supplied with heat from a district heating scheme. However, as radiators in the flats are often inefficient and not adjustable, problems with indoor temperatures are common with both under- and overheating, depending on climate and heating season.On the other hand living in the block of flats is surprisingly comfortable- in the winter people are not obligated to heat their flats by themselves, as it is at all one-family houses. What is more, multi-family houses are usually situated in centres of cities, and therefore more functional- in the VIEW DOCUMENT
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Methods of Capital Punishment : Overview of the methodology of capital punishment including various methods currently employed by the US

456 words - 2 pages thiopental, renders the inmate unconcious -- only then is the the second drug, pancuronium bromide,administeed to relax the muscles and stop breathing and the third drug, potassium chloride, to stop the heart. Electrocution is the second most common method of capital punishment, although in past few years it has been reduced in use by refinement of the leathal injeccion procedure. It employs hight voltage currents which are passed through the condemed person's body via eletrodes attached to critical sections of the body. Its recent unpopularity has been aided by physiological implications of it's procedure such as severe burns suffered by inmates as well as scorched equipment. The temperature of VIEW DOCUMENT
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Nutrients: Fats, Proteins. Carbohydrates, Water, Vitamins & Minerals

506 words - 3 pages . Our body doesn't make certain amino acids (building blocks), and so we get these amino acids with our diet.Fats: fats are basic nutrients made up of carbon, hydrogen, and oxygen atoms. They are used for cells to properly function and maintenance of body temperature. The body does not make some fatty acids and again we look for our diet to supply these. Triglycerides make up 95% of our total body fat, and cholestetrol makes up the rest.Nutrients that supply metabolism:Minerals: Essential to metabolism. Found as salts, or ions like copper and iron. List of some Minerals•Chromium•Cobalt•Copper•Fluorine•Iodine•Iron•Manganese•Molybdenum•Selenium&bull VIEW DOCUMENT
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Biology Notes On Cell Metabolism

437 words - 2 pages shape.-Enzymes will only work if they have the correct shape to allow them to function properly.*substrate:Substance an enzyme reacts with.^^pH^^-Tends to change the shape of the enzyme and effect the rate an enzyme will carry out its function.-Enzymes will only have its correct shape at a specific pH.-The enzyme becomes less efficent on the other side of the pH.^^Temperature^^-At low temp cell contents become solid, so enzymes cannot work.-As temp increases so does rate of reaction because the substrate and enzyme get more energy.-The temp that an enzyme works beast at is its optimum temp.-above optimum temp enzymes denature and rate of reaction drops VIEW DOCUMENT
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ON THE PROBLEM OF CRYSTAL METALLIC LATTICE IN THE DENSEST PACKINGS OF CHEMICAL ELEMENTS

2387 words - 10 pages face-centred lattices - 12 or 9).ROUGH, QUALITATIVE MEASUREMENT OF NUMBER OF ELECTRONS IN CONDUCTION BAND OF METAL - ELEMENT. EXPLANATION OF FACTORS, INFLUENCING FORMATION OF TYPE OF MONOCRYSTAL MATRIX AND SIGN OF HALL CONSTANT.(Algorithm of construction of model)The measurements of the Hall field allow us to determine the sign of charge carriers in the conduction band. One of the remarkable features of the Hall effect is, however, that in some metals the Hall coefficient is positive, and thus carriers in them should, probably, have the charge, opposite to the electron charge /1/. At room temperature this holds true for the following: vanadium, chromium, manganese, iron, cobalt, zinc, circonium VIEW DOCUMENT