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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Gears , rollers , belts , and cams 10 . 7 . 1 . Spur gears Spur gears find extensive
use in machinery , chiefly for transmitting power between shafts of differing
angular frequency . Spur gears achieve zero slip ( so long as the teeth remain
meshed ) ...
Acoustic radiation losses are small for most welldesigned gears . ... For a gear
system operating at a shear force of 1 nN , these losses amount to ~ 0 . ... The
computational examples of bearings and gears in this chapter have used the
Helical gears Gears can be constructed from concentric strained shells with
opposing torsional shear deformations ... Matching gear surfaces of this sort can
be made to mesh more smoothly than spur gears of the same radius ; in effect , n
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Classical Magnitudes and Scaling Laws
Potential Energy Surfaces
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