Lodestar, New York, 1997, 1^st/1^st.  ISBN 0-525-67533-7.  Hard cover, 87 pages including Glossary, Sources, Further Reading, and Index.  Unread copy, remainder mark on top edge.  Dust jacket with price intact has publisher’s price sticker over printed price; bit of edge wear; some rubs.  ‘Smart sensors mimic our own natural senses more than ever before and Hal Hellman outlines exactly how.  Hellman takes each biological sense – vision, touch, hearing, taste, smell, and several others as well – and discusses how corresponding sensors are being devised for use in the home, workplace, and outer space.’ (from front flap)