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Books > Professional & Technical > Technology: general issues > Nanotechnology
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Nanotechnology and the Resource Fallacy (Hardcover)
Loot Price: R2,424
Discovery Miles 24 240
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Nanotechnology and the Resource Fallacy (Hardcover)
Expected to ship within 12 - 17 working days
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Dwindling global supplies of conventional energy and materials
resources are widely thought to severely constrain, or even render
impossible, a "first-world" lifestyle for the bulk of Earth's
inhabitants. This bleak prospect, however, is wrong. Current energy
resources are used grotesquely inefficiently as heat ("fuels,"
after all, are "burned"), so that well over half of the energy is
simply dissipated into the environment. In turn, conventional
materials resources, particularly of metals, are geologically
anomalous deposits that also are typically processed by the
prodigious application of raw heat. Simultaneously, rising levels
of pollution worldwide are a challenge to remediate as they require
the extraction of pollutants at low concentration. Nanotechnology,
the structuring of matter at near-molecular scales, offers the
prospect of solving all these problems at a stroke. Non-thermal use
of energy, in broad emulation of what organisms do already, will
not only lead to more efficient use but make practical diffuse
sources such as sunlight. Pollution control and resource extraction
become two aspects of the same fundamental problem, the low-energy
extraction of particular substances from an arbitrary background of
other substances, and this also is in emulation of what biosystems
carry out already. This book sketches out approaches both for the
efficient, non-thermal use of energy and the molecular extraction
of solutes, primarily from aqueous solution, for purification,
pollution control, and resource extraction. Some long-term
implications for resource demand are also noted. In particular,
defect-free fabrication at the molecular level is ultimately likely
to make structural metals obsolete.
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