The Brown-Roberts-Wells (BRW) arc: its concept as a spatial navigation system.
The Brown-Roberts-Wells (BRW) Arc System can be compared to spatial navigation because both utilize the concept of direction to and spatial location of a point in space by referencing to a horizontal angle (azimuth) and a vertical angle (declination) relative to the horizon. The BRW system also permits the determination of the distance from a reference surface of the arc system to the point (target). The methods of determining these parameters are explained in detail with illustrations.
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Trentwells, Inc., South Gate, Calif.
Cosman
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D004867:Equipment Design; D006801:Humans; D013238:Stereotaxic Techniques