span of beam

  • 81telecommunications media — Introduction       equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation       Every… …

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  • 82Tacoma Narrows Bridge (1940) — This article is about the first Tacoma Narrows Bridge, which collapsed in 1940. For the article on the current bridges, see Tacoma Narrows Bridge. Tacoma Narrows Bridge The original Tacoma Narrows Bridge roadway twisted and vibrated violently… …

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  • 83Vacuum 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… …

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  • 84Cantilever bridge — BridgeTypePix type name=Cantilever bridge image title=The Firth of Forth rail bridge with its three double cantilevers sibling names=None descendent names=None ancestor names=Beam bridge, Truss bridge carries=Pedestrians, automobiles, trucks,… …

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  • 85Rock Island Swing Bridge — The bridge in the open position, taken from the marina directly north of bridge. Carries One and a half lanes of Washington CSAH 22, CSAH 38, and Dakota CSAH 24 and one railroad track Crosses …

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  • 86Prostate cancer — is a disease in which cancer develops in the prostate, a gland in the male reproductive system. It occurs when cells of the prostate mutate and begin to multiply out of control. These cells may spread (metastasize) from the prostate to other… …

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  • 87printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …

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  • 88Mackinac Bridge — Infobox Bridge bridge name= Mackinac Bridge caption= official name= also known as= Mighty Mac or Big Mac carries= 4 lanes of Interstate 75 crosses= Straits of Mackinac locale= Mackinaw City and St. Ignace, Michigan maint= Mackinac Bridge… …

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  • 89Tsing Ma Bridge — at night Official name Tsing Ma Bridge Carries 6 lanes of roadway (upper) 2 MTR rail tracks, 2 lanes of roadway (lower) …

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  • 90Galloping Gertie — This article is about the first Tacoma Narrows Bridge, which collapsed in 1940. For the article on the current bridge, see Tacoma Narrows Bridge. Infobox Bridge bridge name = Tacoma Narrows Bridge (Galloping Gertie) caption = The first Tacoma… …

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