Christmas Fern – Polystichum acrostichoides

by | Dec 9, 2023 | Ferns, NE Native Ferns

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Leonid Alexandrovich Umansky (July 23, 1890 – April 3, 1957) was an American electrical engineer of Russian origin and a recipient of the IEEE Edison Medal for "outstanding contribution to the electrification of industry through the application of electrical machines, devices, and systems to automatic process machinery; and for his inspiration, leadership, and teaching of men in this work".[1]

References

  1. ^ Death of Leonid A. Umansky - Notice in The New York Times.

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