Nanosystems: molecular machinery, manufacturing, and computation
"Devices enormously smaller than before will remodel engineering, chemistry, medicine, and computer technology. How can we understand machines that are so small? Nanosystems covers it all: power and strength, friction and wear, thermal noise and quantum uncertainty. This is the book for starting the next century of engineering." - Marvin Minsky
MIT Science magazine calls Eric Drexler "Mr. Nanotechnology." For years, Drexler has stirred controversy by declaring that molecular nanotechnology will bring a sweeping technological revolution - delivering tremendous advances in miniaturization, materials, computers, and manufacturing of all kinds. Now, he's written a detailed, top-to-bottom analysis of molecular machinery - how to design it, how to analyze it, and how to build it. Nanosystems is the first scientifically detailed description of developments that will revolutionize most of the industrial processes and products currently in use.
This groundbreaking work draws on physics and chemistry to establish basic concepts and analytical tools. The book then describes nanomechanical components, devices, and systems, including parallel computers able to execute 1020 instructions per second and desktop molecular manufacturing systems able to make such products. Via chemical and biochemical techniques, proximal probe instruments, and software for computer-aided molecular design, the book charts a path from present laboratory capabilities to advanced molecular manufacturing. Bringing together physics, chemistry, mechanical engineering, and computer science, Nanosystems provides an indispensable introduction to the emerging field of molecular nanotechnology.
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Modal deformation in pure bending (a) vs. pure shear (b). Bending dominates in
high aspect-ratio rods; shear dominates in rods of low aspect ratio. Both
deformations are here shown in idealized form. For typical materials, shear
makes a ...
(The differences between modal shapes in pure bending and those in pure shear
would complicate a more precise analysis.) Thus, treating both classical and
quantum variances as additive, expressions for the total transverse variance at
This segment is modeled as a tube (with dimensions as above) of length 15 nm
and shear modulus G = 5x10" N/m2. speed of the driven segment. (Toroidal
worm drives of this size can provide ratios >3000.) In turning a tube segment
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Classical Magnitudes and Scaling Laws
Potential Energy Surfaces
25 other sections not shown