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The Johns Hopkins Hospital, a non-profit academic medical center in Baltimore, Maryland, sets healthcare standards in patient care, research and education.
With dozens of COVID-19 vaccines now in clinical trials, it is important to understand the accelerated timelines for development, the different types of vaccines available, and the facts related to vaccine safety and efficacy. Additionally, as vaccines are approved, we will track data on vaccination efforts.
John Hopkinson fue un ingeniero y físico inglés, y dos veces presidente del IEEE, en 1890 y 1896. Contribuyó al desarrollo de la electricidad con el descubrimiento del sistema trifásico para la generación y distribución de la corriente eléctrica, sistema que patentó en 1882. También trabajó en muchas áreas del electromagnetismo y la electrostática. En 1890 fue elegido como profesor ...
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5 de oct. de 2014 · ¿Sabes cuáles han sido los inventos de Steve Jobs que han cambiado el mundo? Descúbrelos en este reportaje con la Ventana al Conocimiento de OpenMind.
John Hopkinson, FRS, (27 July 1849 – 27 August 1898) was a British physicist, electrical engineer, Fellow of the Royal Society and President of the IEE (now the IET) twice in 1890 and 1896. He invented the three-wire (three-phase) system for the distribution of electrical power, for which he was granted a patent in 1882.
Johns Hopkins Medicine counts many "firsts" among its achievements, and was also the birthplace of many medical specialties, including neurosurgery, urology, endocrinology and pediatrics.
