A Lippmann electrometer is a device for detecting small rushes of
electric current. It was invented by Gabriel Lippmann. The device consists of a U-tube which is thick on one end and very thin on the other. The thin end is designed to act as a capillary tube. The u-tubeis half filled with mercury with a small amount of dilute sulfuric acidabove the mercury in the capillary tube. Metal wires are connected at the fat end into the mercury and at the thin end into the sulfuric acid.
When the pulse of electricity arrives it changes the
surface tensionof the mercury and allows it to leap up a short distance in the capillary tube. This device was used in the first practical ECGmachine which was invented by Augustus Desiré Waller.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Lippmann — is a German surname, and may refer to:* Alexandre Lippmann (1880 ?), French Olympic fencer * Bernard A. Lippmann, known for the Lippmann Schwinger equation * Edmund Oscar von Lippmann (1857 ndash; 1940), German chemist * Horst Lippmann (1927… … Wikipedia
LIPPMANN, GABRIEL — (1845–1921), French physicist and Nobel Prize winner. Though born in Luxembourg, Lippmann spent most of his life in Paris. His association with the Annalesde chimie et de physique, for which he prepared summaries of the articles written in German … Encyclopedia of Judaism
Lippmann , Gabriel — (1845–1921) French physicist Born at Hollerich in Luxembourg, Lippmann was educated at the Ecole Normale in Paris. After conducting research in Germany he became professor of probability and mathematical physics at the Sorbonne in 1883. In 1886… … Scientists
Gabriel Lippmann — Infobox Scientist name = Gabriel Lippmann image width = 200px birth date = birth date|1845|8|16|mf=y birth place = Hollerich, Luxembourg death date = death date and age|1921|7|13|1845|8|16 death place = SS France , Atlantic Ocean nationality =… … Wikipedia
capillary electrometer — kapiliarinis elektrometras statusas T sritis Standartizacija ir metrologija apibrėžtis Gyvsidabrio paviršiaus įtempties matuoklis. atitikmenys: angl. capillary electrometer vok. Kapillarelektrometer, n rus. капиллярный электрометр, m pranc.… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
électromètre de Lippmann — kapiliarinis elektrometras statusas T sritis Standartizacija ir metrologija apibrėžtis Gyvsidabrio paviršiaus įtempties matuoklis. atitikmenys: angl. capillary electrometer vok. Kapillarelektrometer, n rus. капиллярный электрометр, m pranc.… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
Marie Curie — Madame Curie redirects here. For the 1943 biographical film about her, see Madame Curie (film). This article is about the chemist and physicist. For the schools named after her, see École élémentaire Marie Curie and Marie Curie High School … Wikipedia
Electrocardiogram — An electrocardiogram (ECG or EKG, abbreviated from the German Elektrokardiogramm ) is a noninvasive transthoracic graphic produced by an electrocardiograph, which records the electrical activity of the heart over time. Its name is made of… … Wikipedia
Electrocardiography — ECG redirects here. For other uses, see ECG (disambiguation). Not to be confused with echocardiogram, electromyogram, electroencephalogram, or EEG. Electrocardiography Intervention Image showing a patient connected to the 10 electrodes necessary … Wikipedia
Hans Berger — Infobox Scientist name = Hans Berger box width = image width =150px caption = Hans Berger birth date = May 21, 1873 birth place = Neuses death date = June 1, 1941 death place = residence = citizenship = nationality = Germany ethnicity = field =… … Wikipedia