2012年12月12日 · Red Adair was the 20th century's greatest—and by far the most famous—fighter of oil well fires. Adair's father worked as a blacksmith, but the family was poor. At the height of the Depression, Adair dropped out of high school to earn money for the family.

2009年8月10日 · Prior to 1909 the traditional fishtail bit scraped the rock and quickly dulled in service. The Hughes two-cone bit's revolutionary rolling action crushed hard-rock formations with twin cone-shaped, hardened steel bits, each with 166 cutting edges, revolving on bronze bearings shaped to provide a large surface with reduced friction.

ASME Y14.100-2013 [Revision of ASME Y14.100-2004 (R2009) and Consolidation of ASME Y14.42-2002 (R2008)] ...

ASME Y14.5 2018 Dimensioning and Tolerancing Standard. Establishes symbols, rules, definitions, requirements, defaults, and recommended practices for stating and interpreting geometric dimensioning & tolerancing (GD&T).

ASME has been defining piping safety since 1922. ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings.

ASME Y14.100 provides requirements & reference documents for preparation and revision of manual or computer-generated engineering drawings & associated lists.

Upon request from industry and government, ASME has been defining piping safety since 1922. This Standard covers ratings, dimensions, tolerances, marking and material requirements for socket-welding and threaded forged fittings.

ASME B18.21.1-2009 (Revision and consolidation of ASME B18.21.1 and ASME B18.22.1) Washers: Helical Spring-Lock, Tooth

2012年1月5日 · Carrying the most advanced payload of scientific gear ever used on the Martian surface, the Mars Science Laboratory Curiosity Rover launched in November is about 10 times larger in mass and capability than the earlier MER rovers that arrived on Mars in 2004.

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