leak point pressure
91Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
92Chicago Tunnel Company — Under the streets of Chicago, pre 1906. Locale Illinois Dates of operation 1906–1959 T …
93Barack Obama presidential primary campaign, 2008 — Infobox U.S. federal election campaign, 2008 committee = Obama for America campaign = U.S. presidential election, 2008 candidate = Barack Obama U.S. Senator 2005–present status = Announced February 10, 2007 Presumptive nominee June 3, 2008… …
94Oxy-fuel welding and cutting — Oxyacetylene redirects here. For the song, see Cubanate. Side of metal, cut by oxygen propane cutting torch …
95pipeline — /puyp luyn /, n., v., pipelined, pipelining. n. 1. a long tubular conduit or series of pipes, often underground, with pumps and valves for flow control, used to transport crude oil, natural gas, water, etc., esp. over great distances. 2. a route …
96Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
97Osama bin Laden — Osama and bin Laden redirect here. For other uses, see Osama (disambiguation) and bin Laden (disambiguation). Osama bin Laden أسامة بن لادن …
98Internal ballistics — Internal ballistics, a subfield of ballistics, is the study of a projectile s behavior from the time its propellant s igniter is initiated until it exits the gun barrel. The study of internal ballistics is important to designers and users of… …
99eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
100International Space Station maintenance — Since construction started, the International Space Station (ISS) programme has had to deal with several maintenance issues, unexpected problems and failures[citation needed]. These incidents have affected the assembly timeline, led to periods of …
