Harold Pender

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Harold Pender ( 1879 - September 5, 1959 ) was an American electrical engineer .

In 1909 Pender became professor of electrical engineering at MIT and head of the associated laboratory. From 1914 he headed the electrical engineering department at the University of Pennsylvania .

From its founding in 1923 until his retirement in 1949, he was the first dean of the Moore School of Electrical Engineering at the University of Pennsylvania . During his tenure, one of the first electronic general-purpose computers was built there, the Eniac , and the first computer courses were given in 1946 with the Moore School Lectures. Analog computers (differential analyzers) were developed there before that. The University's Harold Pender Award for Outstanding Engineers is named in his honor.

He did both basic research and applied research. Around 1905 he confirmed the Rowland effect, at that time attacked by the experiments of the Frenchman Victor Crémieu . After that, a rotating, electrically charged disk generates a magnetic field and this was seen as confirmation of Maxwell's theory as well as the existence of discrete charge carriers and the theory of electromagnetic fields of moving charges (electron theory by Lorentz et al.).

Pender's Handbook of Electrical Engineers was widely used in the United States at the time. He wrote several textbooks on electrodynamics and electrical engineering. In 1913 Pender was elected to the American Academy of Arts and Sciences and in 1917 to the American Philosophical Society .

In 1924 he co-founded an International Resistance Company (IRC). In 1932 he had the composition resistor patented.

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Individual evidence

  1. ^ Member History: Harold Pender. American Philosophical Society, accessed November 3, 2018 .
personal data
SURNAME Pender, Harold
BRIEF DESCRIPTION American electrical engineer
DATE OF BIRTH 1879
DATE OF DEATH 5th September 1959