Business / Machine Shop / Parallels: Hardened steel bars accurately ground to size and ordinarily made in pairs in many different sizes to support work in precision setups.
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Science / Geology / Trench: A long and narrow deep trough in the sea floor: interpreted as marking the line along which a plate bends down into a subduction zone. MORE
Entertainment / Literature / Space Opera: A subgenre of 'soft' science fiction especially popular between 1930-1960, often used in a derogatory sense. These space operas are novels or short stories set in the distant future after humanity has MORE
Science / Astrology / Solstice: Either of two points on the ecliptic at which the Sun reaches it farthest point north (0?° Cancer) or south (0?° Capricorn) of the equator. The longest day of the occurs at summer solstice (first da MORE
Science / Geology / Drumlin: A low, smoothly rounded, elongate hill. Drumlins are deposits of compacted till that are sculpted beneath the ice of a flowing glacier. The long axis of a drumlin parallels the flow direction of the i MORE
Science / Geology / Yazoo Stream: A tributary that parallels the main channel for a considerable distance. Joining of these streams is normally blocked by a natural levee along the larger stream. MORE