2: THE AIR WE BREATHE Purpose/Aim To determine whether air occupies space and whether it can be moved and/ or removed. Introduction Air is a mixture of gases that composes the Earth’s atmosphere (NASA‚ 2015). Like all matter air has properties; one of which is weight‚ in each tiny air particle‚ there is a diminutive bit of weight. This weight is influenced by the pressure and temperature conditions surrounding the air. Air is also invisible‚ we can see through it as the particles of air are too
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Energy Harvesting and Nanotechnology | April 28 2011 | Energy harvesting generators are attractive as unlimited replacements for batteries in electronic devices and have been the focus of new researches for past years. This paper reviews the principles behind this technology and their integration to harvest energy. Also proposes a greener alternative for the production of quantum dots before the integration to new technologies. | Nanowires and Quantum Dots | Energy Harvesting with Nanowires
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After the completion of the Human Genome Project‚ scope for genetic engineering was greatly expanded. Every part of human DNA was mapped and recorded for its role in the DNA. This also made changes in DNA possible‚ allowing scientists to remove or fix any mutations that could lead to harmful consequences. Due to the success of the project it is possible that in a few years couples may even be able to design their children by picking not only their children’s physical appearance but also their children’s
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Purification of solids Aim: To separate a mixture of carboxylic acid and a neutral substance by treatment with aqueous sodium hydroxide and purifying the carboxylic acid‚ measuring the melting points of the neutral and the acid components. METHOD: A mixture of( 5g) Carboxylic acid and neutral compound were separated by adding 2 mol dm-3 sodium hydroxide (25cm3) to the mixture‚ which separated the water soluble sodium from the water insoluble neutral component‚ by filtration. The solid at the
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Cover-It’s future development Executive summary This case study has been performed to identify different alternatives for Cover-It and Jeremy to either sell or managing his business to develop it. From our analysis we will give Jeremy one final recommendation. Based on the situation analysis‚ we defined following main problem definition: How should Jeremy adjust to the proposed offer from Cover Concepts? Our final recommendation to Jeremy is to sell Cover-It‚ as he has poor health‚ the financial
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Essays Opinion Essay 1 Space exploration is much too expensive and the money should be spent on more important things. To what extent do you agree or disagree? There is an argument that exploring space is a waste of money and that there are more urgent needs to be addressed on earth‚ such as reducing poverty and preventing environmental destruction. However‚ I completely disagree with this opinion for two reasons. First of all‚ many of the technologies we take for granted today were originated
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Would you eat green carrots‚ or orange cabbage? Nowadays genetic engineering is interfering with more than just size. Genetic engineering is harmful‚ dangerous and also helpful. Genetic engineering in food began with rice. Rice didn’t contain very much vitamin A‚ and in the poorer parts of Asia‚ where rice is almost the only food the rural population have the lack of vitamin A lead to early blindness. Two genetic engineers by the names Drs. Ingo Potrykus and Peter Beyer transferred the genes
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NANOTECHNOLOGY AND SOME USAGE AREAS OF IT The nanometer is a unit length which equals 10-9 meters‚ in other words‚ billionth of a meter. In basic‚ logical perspective‚ the definition: the science‚ which studies the matter in nano dimensions for the term “nanoscience” is quite perceptible. However‚ to deeper understanding‚ it is useful to take a look at a wide definition of the nanotechnolocy‚ provided by U.S. National Nanotechnology Initiative. According to the initiative‚ “Nanotechnology is the
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element actually has many vital applications in society. Probably the most well known commercial usage is in airships and blimps (non-flammable helium replaced hydrogen as the lifting gas du jour after the Hindenburg catastrophe in 1932‚ during which an airship burst into flames and crashed to the ground killing some passengers and crew). But helium is also instrumental in deep-sea diving‚ where it is blended with nitrogen to mitigate the dangers of inhaling ordinary air under high pressure; as a cleaning
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preparation of fuel oils • Avoid oil spillage • Prevent oil leakage • Drain water from storage tank • Clean strainers/filters • Maintain the fuel oil at higher temperature in the main storage tank • Maintain correct pre-heat temperature Combustion of fuels oils & burner operation & maintenance • The heat generated by combustion of fuel is utilised by boiler or furnace of heating water or air or any process material. • Combustion effected by a burner which mixes fuel and air in proper
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