With proper maintenance, an industrial robot will remain in service for 10 to 15 yr. In many cases, retrofitting can extend - and even double - the life of these shopfloor workhorses. Amidst a winter storm on the night of December 25, 1776, General George Washington led a column of Continental Army troops across the Delaware River to Trenton in the province of New Jersey, in preparation for a surprise attack. The following morning, Washington and his men took the fight to Hessian soldiers sided with the British. By nightfall on December 26, the attack's success delivered sorely needed momentum, ultimately leading to victory in the American Revolution.
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