pipe bore
71Prague pneumatic post — The Prague pneumatic post (Czech: Pražská potrubní pošta) is the world s last preserved municipal pneumatic post system. [Wertheim, Margaret. [http://www.newscientist.com/article/mg16422095.000 bones to phones.html Bones to phones] , New… …
72Native American music — Introduction music of the indigenous peoples of the Western Hemisphere. The Americas contain hundreds of native communities, each with its own distinctive history, language, and musical culture. These communities although united in placing… …
73Magnetic resonance imaging — MRI redirects here. For other meanings of MRI or Mri, see MRI (disambiguation). Magnetic resonance imaging Intervention Sagittal MR image of the knee ICD 10 PCS B?3?ZZZ …
74Cornett — For the place in England, see Cornett, Herefordshire. Not to be confused with Cornet. Three different cornetts: mute cornett, curved cornett and tenor cornett The cornett, cornetto or zink is an early wind instrument, dating from the Medieval,… …
75Chevrolet Corvair engine — Corvair engine Manufacturer Chevrolet Displacement 140 CID (2.3L), 145 CID (2.4L), 164 CID (2.7L) Cylinder block alloy …
76Drilling fluid — This article is about fluids used when drilling a well. For fluids used with drill bits during metal working, see cutting fluid. Driller pouring a foaming agent down the rod string on a drilling rig In geotechnical engineering, drilling fluid is… …
77List of pipeline accidents — The following is a list of pipeline accidents: This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. Contents 1 Bel …
78Well kill — A well kill refers to the operation of placing a column of heavy fluid into a well bore in order to prevent the flow of reservoir fluids without the need for pressure control equipment at the surface. It works on the principle that the weight of… …
79Drill string — A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the kelly drive or top drive) to the drill bit. The term is loosely applied as the assembled collection of… …
80Music of Brittany — Since the early 1970s, Brittany has experienced a tremendous revival of its folk music. Along with flourishing traditional forms such as the bombard binou pair and fest noz ensembles incorporating other additional instruments, it has also… …
