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  • Publicado : 28 de marzo de 2011
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Grey Water Is Green Water
(Environment)

|[p|Do you recycle your water? |
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Most of us are probably proficient in listing ways of saving water in the home, however, how many of us can boast the sameawareness about recycling household water?
A person's daily water usage averages between 280 to 450 liters. Ironically, once we dispose of this liquid gold, it literally goes down the drain, a sad fact considering that it is potable water. However, as much as 3000 liters per person per month of this water can be salvaged and reused. Shower, sink, dishwasher, and washing machine wastewater, known as greywater, can be recycled and redirected for use in garden irrigation and other household tasks.
Recycling grey water has become a growing trend in drought-affected countries like Australia. Collecting grey water can be done easily by manual bucketing, or by diverting the water for collection before it reaches the sewer. For more domestic uses, grey water can be chemically treated and reused insidethe home for toilet flushing or laundry, by installing a treatment system. The simplicity of the process is certainly appealing and the advantages of this recycling are obvious: you reduce the amount of potable water you use; you produce less wastewater; you reduce your water bills; and your garden benefits during droughts.
Is it as easy as it sounds? Well, once you've invested in a grey waterrecycling system, the rest depends on what you as an individual do to develop more environmentally friendly habits. Opting for ecologically friendly soaps and detergents, for instance, will reduce the level of toxic chemicals in your grey water, thus allowing you greater freedom when watering your garden. For those without a garden, surely it makes more sense to wash floors or flush toilets withwastewater rather than drinking water?
Artificial Creativity
(Science & Technology)

|[p|Do you think computers should have the ability to be as creative as|
|ic|humans? |
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Are computers becoming so advanced to the point that they can mimic human talent? Aninnovative computer program is actually capable of composing original pieces of music using algorithms. This software can be very helpful for professionals in the music industry who need a little help when trying to compose a masterpiece.
David Cope has been composing music for years, with the assistance of special software which he created. The first version of his software was called "Emmy"(Experiments in Musical Intelligence) and Cope even gave credit to Emmy by publishing a collection of thousands of works entitled "5,000 Works" under the software's name.
The current version of the software is known as "Emily Howell"; Howell is both Cope's middle name and his father's name. He believes it has helped cure his "composer's block" by generating random melodies and combining them. Cope claimsthat humans generate their original musical compilation in much the same way that a computer program does. The human brain scans all the different sound combinations that are stored in the memory, which results in an original piece. As Cope puts it, "what we do in our brains is take all the music we've heard in our life, segregate out what we don't like, and try to replicate the music we likewhile making it our own." According to Cope, a computer program is simply a more powerful version of this system and is a valuable tool when a composer needs some new ideas. The program's database is chock full of music, including great classics by Bach and Chopin. Cope has carefully rated each note by pitch, duration, volume, when it appears in the piece, and what instrument (or voice) produces...
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