Octane Rating Octane rating is a fuel’s ability to resist detonation and is classified by three main rating types. Octane rating is the measure of how resistant is gasoline and other fuels in the combustion engines to automatic ignition. It is the measure of a fuel’s burning characteristics. It is a standard measure of the performance of a motor or aviation fuel‚ the higher the octane number‚ the more compression the fuel can withstand before detonating. In broad terms‚ fuels with a higher octane
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Fracking Hydraulic fracturing‚ also known as fracking‚ is the process of removing once unattainable natural gas from shale formation deep underground. The fracking process was developed by Halliburton in the 1940s as a technique to stimulate gas well production. Vertical holes are drilled deep into the subsurface of the ground‚ and horizontal extensions are drilled at the bottom of the well at an average depth of 8000 feet. Once the holes are drilled‚ water is mixed with chemicals and
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Global Warming speech to inform/persuade I. Introduction: A. "Global warming is the observed increase in the average temperature of the Earth’s near-surface air and oceans in recent decades and its projected continuation. B. The average global air temperature near Earth’s surface has risen about 0.74 °Celsius (1.3 °Fahrenheit) in the last century C. Models of global warming referenced by the Intergovernmental Panel on Climate Change (IPCC) predict that global temperatures are likely
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HAS MAN BECOME A SLAVE TO TECHNOLOGY AND HAS TECHNOLOGY HARMED THE ENVIRONMENT? In a modern world human beings are essentially running out of resources. It is often heard that evidence of environmental damage being created by humanity is inconclusive. It is not a subject often discussed within modern media and until recently‚ a majority of the population remained unaware to the growing issues currently challenging the Earth. This ecological crisis could persuasively be blamed upon the rapidly
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start such things as burning less coal and oil in order to help reduce and hopefully eventually help to eliminate the human carbon footprint on our planet. Human carbon footprints are caused by the releases of carbon dioxide and another gas called methane gas into the earth’s atmosphere and it causes the earth to warm much faster than it has in past years. These faster rising temperatures of the earth have caused some very severe effects on the climate change and now the climate change is being observed
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Polina Kirilyuk Drivers Education Class June 14‚ 2013 Human race‚ over a long period of time‚ has evolved to what we are today‚ Homo-sapiens‚ those who can think and reason. We’ve progressed so far‚ to satisfy our guilty pleasure - comfort. Everything we have invented‚ from clothing to heavy machinery‚ was made to make our lives just a tad easier. Our every –day solace comes with a price: our internal and external environments are at risk of being annihilated. We use up our mother-nature’s gifts
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Natural Causes of Climate Change The earth’s climate is influenced and changed through natural causes like volcanic eruptions‚ ocean current‚ the earth’s orbital changes and solar variations. Volcanic Eruptions When a volcano erupts it throws out large volumes of sulphur dioxide (SO2)‚ water vapour‚ dust‚ and ash into the atmosphere. Large volumes of gases and ash can influence climatic patterns for years by increasing planetary reflectivity causing atmospheric cooling. Tiny particles called aerosols
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The Foulness of Fracking Imagine waking up in the middle of the night and wanting a glass of water‚ you go to the tap and instead of fresh clean water you get yellow‚ cloudy‚ oily water that smells of chemicals. Would you drink it? Those that live near natural gas hydro-fractured wells have had to ask themselves that question. Hydraulic fracturing or fracking‚ as it’s commonly called‚ is a process of extracting natural gas from deep within the earth’s surface by drilling. Once a well is drilled
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camping? Justify your fuel choice by making reference to energy content per gram and the other data provided in the table. You will be assessed based on how well you support your opinion. (5 marks) Fuel Kerosene Ethanol Methanol Wood Propane Biogas (Methane) State (l) (l) (l) (s) (g) (g) ΔcHm (kJ/mol) - 8.33 x 103 - 1.37 x 103 - 728 -2.51 x 103 -2.22 x 103 -891 Molar mass (g/mol) Approx 110 – 226 46.08 32.05 Assume cellulose (C6H10O5)n ‚ 162.16) 44.11 16.05 Energy Content (kJ/g) Average of 110 and 226
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The Enhanced Greenhouse Effect For the past ten thousand years the earth’s climate has been extremely good and beneficial to mankind. Today however ‚ major changes are taking place. Humans beings are changing the face of the entire planet by destroying the rain forests and pumping our pollutants into the air and water. Some of these gases are very toxic and they are destroying our ozone layers which allows life to exist on earth These things are changing the make-up of the earth’s biosphere
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