Cover design by David J. Smith
Cover (molecules) and CAVE rendering courtesy of the IU Cave Automatic Virtual Environment
Photo and diagram (IRIS Broadband Seismic Array System) courtesy of Gary Pavlis
Photos (WIYN Observatory) courtesy of Kent Honeycutt
Images (silver nanoparticles and schematic diagram) courtesy of Nie Group, Department of Chemistry, IUB
Images (kidney tubule and kidney cells) courtesy of Kenneth Dunn
Drawing, p. 27, by Michael Halbert
Image (helium-3 ion and hydrogen ion) courtesy of Victor Viola.
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