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Charles W. Ebeling, a retired industrial engineer, is the author of An Introduction to Reliability and Maintainability Engineering, Integrated Packaging Systems for Transportation and Distribution, and other books on engineering. More >>

KENTWORTH EDEL is a mechanical engineer and lives in Delran, NewJersey., More >>

Amy C. More >>

Jason Emerson , an independent historian writing from Cazenovia, New York, is the author of The Madness of Mary Lincoln (Southern Illinois University Press, 2007) an More >>

John Erroll is curator of the John M. Mossman Lock Collection, at the General Society of Mechanics and Tradesmen in New York City. More >>

STEPHEN ESCHENBACH is a writer in Millburn, New Jersey. More >>

Rhodri Evans is a senior lecturer in physics and astrophysics at the University of Namibia.

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