The Collaborative International Dictionary of English. 2000.
Sprengel pump — The supply of mercury is contained in the reservoir on the left. It flows over into the bulb B, where it falls in drops into the long tube on the right. These drops entrap between them the air in B. The mercury which runs out is collected and… … Wikipedia
sprengel pump — noun Usage: usually capitalized S Etymology: after Herman J. P. Sprengel : an air pump in which exhaustion is produced by drops of mercury running down a narrow tube and trapping bubbles of gas between them … Useful english dictionary
pump — I (New American Roget s College Thesaurus) v. t. draw, suck [out]; interrogate, question, catechize; inflate, puff up. See inquiry, wind, extraction. II (Roget s IV) n. Types of pumps include: air, chain, force, Geissler, lift, mercury, sand,… … English dictionary for students
Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… … Wikipedia
Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… … Wikipedia
Heinrich Goebel — Heinrich Göbel, Fotografie aus New York Heinrich Göbel (* 20. April 1818 in Springe; † 4. Dezember 1893 in New York; nach 1849 auch als Henry Goebel bekannt) war ein Feinmechaniker deutscher Herkunft, der 1865 US Staatsbürger wurde. Heinrich… … Deutsch Wikipedia
Henry Goebel — Heinrich Göbel, Fotografie aus New York Heinrich Göbel (* 20. April 1818 in Springe; † 4. Dezember 1893 in New York; nach 1849 auch als Henry Goebel bekannt) war ein Feinmechaniker deutscher Herkunft, der 1865 US Staatsbürger wurde. Heinrich… … Deutsch Wikipedia
Heinrich Göbel — Heinrich Göbel, Fotografie aus New York Heinrich Göbel (* 20. April 1818 in Springe; † 4. Dezember 1893 in New York; nach 1849 auch als Henry Goebel bekannt) war ein Feinmechaniker deutscher Herkunft, der 1865 US Staatsbürger wurde. Heinrich… … Deutsch Wikipedia
Fluorescent lamp — A fluorescent lamp or fluorescent tube is a gas discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light.Unlike… … Wikipedia
Pectus excavatum — Classification and external resources An example of a severe case. ICD 10 Q67.6 … Wikipedia
