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Alternative Energy
Beginning of Essay
SOLAR ENERGY -- THE ENERGY OF THE FUTURE? About 47 per cent of the energy that the sun releases to the earth
actually reaches the ground. About a third is reflected directly back into space by the atmosphere. The time in which solar
energy is available, is also th .... Middle of Essay .... must be another method. The concentrated beams of sunlight are collected in a device
called a solar furnace, which acts on the same principles as a large magnifying glass. The solar furnace takes the sunlight from a
large area and by the use of lenses and mirrors can focus the light into a very small area. Very elaborate solar furnaces have
machines that angle the mirrors and lenses to the sun all day. This system can provide sizeable amounts of electricity and create
extremely high temperatures of over 6000 degrees Fahrenheit. Solar energy generators are very clean, little waste is emitted
from the generators into the environment. The use of ....
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Words: 339 - Pages: 2
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