classrooms but was then applied to surrounding communities. According to Diaz‚ the technology is as simple as it could be. Each bottle contains water and bleach. When placed into a purpose-built hole in the roof‚ the homemade bulb refracts and spreads sunlight‚ illuminating the room beneath. Today‚ the project has expanded to more than 15‚000 solar bottle bulbs in 20 cities and provinces‚ benefiting more than 200‚000 families. It aims to reach 1 million beneficiaries by 2012. The UN’s Momentum
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temperature of about 100oC for a short period of time. Water heated to temperatures below 100C is generally referred to as pasteurized water. * Solar ultraviolet water disinfection‚ known as SODIS‚ is a method of disinfecting water using only sunlight and plastic bottles (PET bottles). This is an effective and very cheap method. SODIS is usually applied at the household level. Due to the fact that it is an affective and cheap method it is applied in numerous developing countries. Within Africa
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Name: Essien Aniebiet Isreal Course: New Media CMT3331 Programme: Information Technology and Business Information System. Reflective Report Sequel to my thoughts and ideas‚ I finally came up with a preferable selection‚ despite several varieties of ideas. The choice of picture I have selected was based on a Safari trip to the Sahara desert of Dubai some time ago. It is a picture of the desert with the sand dunes and a rock. I often stare at the picture for a minute or two each time I come
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reduces the amount of greenhouse gases‚ because people walk instead. In the Sister Solariums‚ each of the building’s floors are fanned out into a spiral during the day so that each floor gets equal amounts of sunlight. Solar-powered LEDs provide light during bad weather and at night for extra sunlight. The risk of environmental factors affecting the food is greatly reduced because it is all grown completely indoors to reduce the risk of poor air quality and pests. Also‚ there are multiple locations for
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There has been debate over the present-day characteristics of the biome of tropical regions. For some they are viewed as a natural response to the climate of the area. Whereas for others they are regarded as a product of human interferences. Discuss this statement in the context of the biome you have studied. The Amazon rainforest is affected by both human interference such as deforestation as well as the climate contributing to global warming and causing both harm and extinction towards the species
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duckweeds since it contains sufficient nutrients and hence would help in the growth of the plants. REASON FOR HYPOTHESIS: As I mentioned on top‚ the plants would start to multiply as they have sufficient minerals for their growth and through constant sunlight‚ they would increase in numbers (except concentrated nitrates). Later on‚ they would slowly start to perish leaving a white color. This would happen because the plants must have used up all the minerals for a period of time‚ and hence due to fewer
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compost pile by alternating layers of non-sterile garden soil‚ organic material‚ lawn fertilizer‚ and water. D.) Place thermometer into the middle of the pile. E.) Place compost pile in an accessible place away from extreme temperatures or direct sunlight. F.) Check the moisture level of the compost pile every two days‚ and add water as needed. G.) Once a week gently turn and aerate compost with a large spoon. H.) Observe compost and collect data. Data Compost Pile at Home Window Age of
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will happen because the plant will have enough carbon dioxide and water to keep up with the amount of light that there is. When there is less light intensity‚ photosynthesis will happen at a slower rate because gradually there will not be enough sunlight as there is carbon dioxide and water. APPARATUS: lamp x 1 beaker x 1 (1L) test tube x1(up to the top) water 500ml(up to the top) measuring stick ( to measure distance between light and plant) x1
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Solar Cell Efficiency Most of the energy that reaches a cell in the form of sunlight is lost before it is converted to electricity. The usual efficiency of these systems ranges between 10% to 15%‚ though sometimes this efficiency increases to 30% and more. Certain physical properties affect the cell efficiency which we will briefly state. 1- Reflection: Studies show that untreated silicon reflects 36% or more of sunlight that strikes it. Chemically coating and texturing the surface reduces the reflection
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Updating your home with Renewal by Andersen of New Jersey & New York Metro replacement windows and patio doors allows you to creating an amazing street-facing appearance. We generally focus on helping homeowners select appropriate styles and decorative elements that complement the home’s architectural elements and character. Today‚ we’d like to talk about landscaping and the relationship between your windows and green spaces. Naturally‚ if you have plants‚ shrubs‚ paving stones or other ornamental
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