A write-once optical information recording medium is provided that is capable of realizing a high transfer rate and a method of recording and reproducing information on and from the optical information recording medium. An as-quenched seamless steel pipe having a chemical composition consisting of, by mass%, C: 0. A switch assembly has an aperture aligned with the bore. One application of the foregoing is in analog-to-digital conversion. A simplified tracking procedure allows tracking of celestial objects after the telescope system has had its axis positions initialized to a horizontal and a vertical index. The fabrics are comprised of sets of strong, substantially parallel, unidirectional yarns lying in parallel planes, one above the other, with the direction of the yarns in a given plane rotated at an angle to the direction of the yarns in adjacent planes; and one or more sets of yarns having lower strength and higher elongation interleaved with the strong yarns.