screw coordinate
31Numerical control — CNC redirects here. For other uses, see CNC (disambiguation). A CNC Turning Center …
32Battle of Elizabeth City — Infobox Military Conflict conflict=Battle of Elizabeth City partof= American Civil War color scheme=background:#ffcccc caption= date=10 February 1862 place=near Elizabeth City, North Carolina result=Union victory combatant1= United States (Union) …
33Torsion tensor — In differential geometry, the notion of torsion is a manner of characterizing a twist or screw of a moving frame around a curve. The torsion of a curve, as it appears in the Frenet Serret formulas, for instance, quantifies the twist of a curve… …
34USS Unadilla (1861) — was a 507 ton steam operated gunboat acquired by the Union Navy during the American Civil War. She was used as a gunboat by the Navy to patrol navigable waterways of the Confederacy to prevent the South from trading with other countries. Built in …
35Maritime history of the United Kingdom — The Maritime history of the United Kingdom involves events including shipping, ports, navigation, and seamen, as well as marine sciences, exploration, trade, and maritime themes in the arts from the creation of the kingdom of Great Britain[1] as… …
36M109 howitzer — Infobox Weapon name=M109 Howitzer caption=M109 self propelled howitzer of the Royal Netherlands Army origin=USA type=Self propelled artillery is vehicle=yes is ranged=yes is artillery=yes length=30 ft (9.1 m) width=10.3 ft (3.1 m) height=10.7 ft… …
37Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… …
38Tulane University — Seal of Tulane University Motto Non Sibi Sed Suis (Latin) Motto in English Not for oneself, but for one s own …
39Magnetoencephalography — Diagnostics Patient undergoing an MEG MeSH …
40Helix — This article is about the shape. For other uses, see Helix (disambiguation). The helix (cos t, sin t, t) from t = 0 to 4π with arrowheads showing direction of increasing t …
