second

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Related to Arc second: parsec, radian

second

(Backer), noun advocate, aide, angel, backer, champion, endorser, patron, promoter, supporter

second

(Moment), noun before you know it, brief peeiod of time, flash, flash of an eyelid, instant

second

verb approve, assist, authorize, back, back up, confirm, endorse, favor, pass, ratify, receipt, recommend, sanction, stand behind, subscribe, support, validate, vote for, warrant
Associated concepts: second lien

SECOND. A measure equal to one sixtieth part of a minute. Vide Measure.

References in periodicals archive ?

Arc Second envisions those same uses, and many others, Barrientos said: not only for tracking the location of two subassemblies as they come together, but also for measuring continuously the symmetry of wings during assembly or detecting distortion in two fuselage barrels during joining.

Measuring across space and time: large-scale metrology moves GPS in out of the rain

Laser beam accuracy is within 2 arc seconds and repeatability is within 1 arc second.

Keeping machines in line: laser alignment keeps machines running smoothly. (Alignment)

Even today, with recent advances inimaging that have improved resolution, anything short of a telescope sent into space is unable to obtain a resolution at visible wavelengths of more than about 1 arc second.

Telescope tunes in to the guiding light

FARLOE TITAN has enjoyed a good career just about everywhere, but a stunning one at Swindon and the reigning champion can stay on course for a title defence by taking heat two in the Arc second round over 480m at the Wiltshire track this evening (9.

Hello to say goodbye to Arc rivals; OPEN CHECK

27 arc second resolution -- an improvement over the 14 arc second resolution of the incremental encoders Toms previously used.

Starring at sky tracking: new encoders bring high resolution to "slew" drive systems for automated telescopes. Here's how they are exploring the heavens. (Design ideas: motion control)

Indexing accuracy of the contouring-capable table is [+ or -]2 arc seconds with repeatability of 1 arc second.