Archimedean drill

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• Archimedean drill — noun A drill in which to and fro movement of a nut on a helix causes alternating rotary motion of the bit • • • Main Entry: ↑Archimedean …   Useful english dictionary

• Archimedean — Ar chi*me*de an, a. [L. Archimedeus.] Of or pertaining to Archimedes, a celebrated Greek philosopher; constructed on the principle of Archimedes screw; as, Archimedean drill, propeller, etc. [1913 Webster] {Archimedean screw}, or {Archimedes… …   The Collaborative International Dictionary of English

• Archimedean screw — Archimedean Ar chi*me*de an, a. [L. Archimedeus.] Of or pertaining to Archimedes, a celebrated Greek philosopher; constructed on the principle of Archimedes screw; as, Archimedean drill, propeller, etc. [1913 Webster] {Archimedean screw}, or… …   The Collaborative International Dictionary of English

• Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …   Wikipedia

• Archimedes' screw — Archimedean Ar chi*me*de an, a. [L. Archimedeus.] Of or pertaining to Archimedes, a celebrated Greek philosopher; constructed on the principle of Archimedes screw; as, Archimedean drill, propeller, etc. [1913 Webster] {Archimedean screw}, or… …   The Collaborative International Dictionary of English

• Lawn mower — A typical modern gasoline powered push mower. A riding mower or ride on …   Wikipedia

• technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …   Universalium

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• Ancient technology — See Ancient technology in Stargate for the technology of the aliens known as the Ancients in the fictional Stargate universe .During the growth of the ancient civilizations, ancient technology was the result from advances in engineering in… …   Wikipedia

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