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Willem Einthoven was born in Semarang on Java in the Dutch East Indies (now Indonesia), the son of Louise Marie Mathilde Caroline de Vogel and Jacob Einthoven. [2] His father, a doctor, died when Willem was a child. His mother returned to the Netherlands with her children in 1870 and settled in Utrecht.
The electrocardiograph was impractical to use until Willem Einthoven, a Dutch physiologist, innovated the use of the string galvanometer for cardiac signal amplification. [2] Significant improvements in amplifier technologies led to the usage of smaller electrodes that were more easily attached to body parts. [ 1 ]
Einthoven's triangle is an imaginary formation of three limb leads in a triangle used in the electrocardiography, formed by the two shoulders and the pubis. [1] The shape forms an inverted equilateral triangle with the heart at the center. It is named after Willem Einthoven, who theorized its existence. [2]
For example even the date that Einthoven invented the string galvanometer is wrong. I believe the authors have simply reworked secondary publications and have not done the primary research of the dates and people involved in the early years of electrocardiography.
The E-meter is a simple psycho-galvanometer. It's got some increased sensitivity built into it and the myological reactions that you sometimes get in the galvanometer have been damped out by the circuitry, so that the mental reactions, the reactions of the spirit, on the body are emphasized and can be read more clearly. But that's simply the ...
Gerardus "Gerard" 't Hooft (Dutch: [ˈɣeːrɑrt ət ˈɦoːft]; born July 5, 1946) is a Dutch theoretical physicist and professor at Utrecht University, the Netherlands.He shared the 1999 Nobel Prize in Physics with his thesis advisor Martinus J. G. Veltman "for elucidating the quantum structure of electroweak interactions".
Late 19th or early 20th century. This galvanometer was used at the transatlantic cable station, Halifax, NS, Canada Modern mirror galvanometer from Scanlab. A mirror galvanometer is an ammeter that indicates it has sensed an electric current by deflecting a light beam with a mirror. The beam of light projected on a scale acts as a long massless ...
[12] In 1970, he was awarded the Louisa Gross Horwitz Prize from Columbia University , together with Renato Dulbecco (winner of the 1975 Nobel Prize in Physiology or Medicine) " for discoveries concerning the functional organization of the cell that were seminal events in the development of modern cell biology ", [ 13 ] related to his previous ...