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A Rare Surviving Letter From Martha Washington Sheds Light on Her Young Daughter's Struggle With Epilepsy

来源: Smithsonian Magazine ·

Recently obtained by the Library of Congress, the 1760 letter offers positive news about the health of four-year-old Martha Parke Custis, known as Patsy, the stepdaughter of George Washington

什么是 A Rare Surviving Letter From Martha Washington Sheds Light on Her Young Daughter's Struggle With Epilepsy?

A Rare Surviving Letter From Martha Washington Sheds Light on Her Young Daughter's Struggle With Epilepsy is a 文章 discovery curated from Smithsonian Magazine. Recently obtained by the Library of Congress, the 1760 letter offers positive news about the health of four-year-old Martha Parke Custis, known as Patsy, the stepdaughter of George

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You can experience this content directly on its original host (Smithsonian Magazine) by clicking the "Open Original" button.

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Curated from Smithsonian Magazine by the OnSuggest team to surface the most interesting and serendipitous content on the web.

文章 · 科学

The Dynamo-Electric Principle: 160 Years of Powering Industry

This article is brought to you by Innomotics . In the annals of industrial history, few innovations have demonstrated such remarkable staying power as the dynamo-electric principle. Discovered by Werner von Siemens in 1866, this groundbreaking principle remains fundamental to modern electrical engineering more than a century and a half later – and continues to shape the technology portfolio of Innomotics , a globally leading provider of electric motors and large drive systems. What began as a breakthrough in electromechanical energy conversion has evolved into a cornerstone of global industry

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