"Dash's title provides an in-depth look at a little known inventor and his life and times and makes good use of primary sources seldom available to students. (afterword, glossary, timeline, bibliography) (Biography. 12-14)"
John Harrison, an obscure 18th-century carpenter and clockmaker from Yorkshire, solved a problem that had plagued sailors for centuries: how to tell East-West location at sea, thereby avoiding shipwrecks and other costly disasters.
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