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GLOSSARY OF JOIST AND STRUCTURAL TERMS John W. Hancock, Jr., LLC dba New Millennium Building Systems

Backing Bar A welding aid used to prevent melting through of a joint when preforming, for example, a complete joint penetration groove weld. Balcony An elevated platform or seating space of an assembly room projecting from a wall of a building. Ballast Roof A roof

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Computing at Columbia Timeline

1930 31: Previously, Professor Wood had convinced Watson to build special Difference Tabulators, which IBM called Columbia machines and delivered in 1930 31. These machines could process 150 cards per minute and were unique in their ability to rapidly

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Habitat Module Atomic Rockets The Weird World of Winchell Chung

The section of the spacecraft that the crew lives and works in is called the Habitat Module Larry Niven calls it a Lifesystem . It is pressurized with a breathable atmosphere, and protects the crew from extremes of temperature and from radiation. Unlike spacecraft

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