Search results
Results from the WOW.Com Content Network
Willem Einthoven (21 May 1860 – 29 September 1927) was a Dutch medical doctor and physiologist. He invented the first practical electrocardiograph (ECG or EKG) in 1895 and received the Nobel Prize in Physiology or Medicine in 1924 for it ("for the discovery of the mechanism of the electrocardiogram").
[4] Einthoven developed a sensitive form of string galvanomter that allowed photographic recording of the impulses associated with the heartbeat. He was a leader in applying the string galvanometer to physiology and medicine, leading to today's electrocardiography. [5] Einthoven was awarded the 1924 Nobel prize in Physiology or Medicine for his ...
However, Einthoven needed an exact way of measuring the minute amounts of current. In 1897 a French electrical engineer, Clement Ader, invented the "string galvanometer", containing a tensioned string of quartz. In 1903, Einthoven modified Ader's machine, adding electrodes attached to the patients limbs and thorax.
It is often simply called a book club, a term that may cause confusion with a book sales club. Other terms include reading group, book group, and book discussion group. Book discussion clubs may meet in private homes, libraries, bookstores, online forums, pubs, and cafés, or restaurants, sometimes over meals or drinks.
Dive deeper into Eckhart Tolle's transformative book, "A New Earth: Awakening to Your Life's Purpose," with our comprehensive reader's guide. Reading group discussion guide for Oprah's book club ...
Spoilers ahead! We've warned you. We mean it. Read no further until you really want some clues or you've completely given up and want the answers ASAP. Get ready for all of today's NYT ...
WASHINGTON (Reuters) -U.S. President Joe Biden's administration has awarded over $100 billion in grants created by its signature climate law, the Inflation Reduction Act, Biden senior advisor for ...
Williams traveled to Holland to study the methods of Willem Einthoven in 1911. [ 2 ] He constructed the first string galvanometer in America, pioneered vectorcardiography , discovered the ventricular vulnerable period, and first determined the 60-Hz current required to produce ventricular fibrillation with body-surface electrodes.