-
21 axis
1) ось, вал, шпиндель2) ось, осевая линия3) ось координат, координатная ось4) рбт степень подвижности• -
22 boundary
1) граница; предел; порог; рубеж; край; контур3) с.-х. межа4) граничный; краевой; пограничный; предельный;• -
23 method
метод; процедура; способ- antithetic variate method - average ordinate method - average range method - binary search method - conjugate directions method - conjugate gradient method - control chart method - conventional milling method - correlation function method - decision function method - differential control method - Feynman diagram method - first approximation method - gradient projection method - iterative method - large sample method - large sieve method - least-squares regression method - less than fully efficient method - linearly implicit method - method of adjoint gradient - method of algebraic addition - method of alternating directions - method of balanced blocks - method of complex numbers - method of confidence intervals - method of conformal mappings - method of conjugate directions - method of conjugate gradients - method of cyclic descent - method of detached coefficients - method of disjunction of cases - method of divided differences - method of electrical images - method of elimination of quantifiers - method of empty ball - method of extreme values - method of false position - method of feasible directions - method of finite differences - method of first approximation - method of first entrance - method of fitting constants - method of fixed points - method of full enumeration - method of generating functions - method of geometric exhaustion - method of indefinite coefficients - method of infinite descent - method of interval bisection - method of least absolute values - method of least distance - method of least likelihood - method of maximum likelihood - method of means and standard deviations - method of medians and extreme values - method of minimal change - method of minimal variance - method of mirror reflections - method of moving frame - method of multiple comparison - method of orthogonal projections - method of paired associates - method of paired comparisons - method of phase integrals - method of projecting cones - method of proportional parts - method of rotating factors - method of semantic tableaux - method of separation of variables - method of simulaneous displacements - method of stationary phase - method of statistical differentials - method of statistical inference - method of steep variations - method of steepest ascent - method of stochastic approximation - method of straightforward iteration - method of successive displacements - method of successive divisions - method of successive elimination - method of transfinite induction - method of unweighted means - method of variable differences - method of variation of parameters - method of weighted residuals - optimum method - parallel tangents method - precision method - random walk method - recursive method - reduced gradient method - reflected wave method - relative method of measurement - sampling method by variables - statistical sampling method - steepest descent method - time average method -
24 Archimedes of Syracuse
[br]b. 287 BCd. 212 BC[br]Greek engineer who made the first measurement of specific gravity.[br]He studied in Alexandria, after which he returned to Syracuse where he spent most of the rest of his life. He made many mathematical discoveries, including the most accurate calculation of pi made up to that time. In engineering he was the founder of the science of hydrostatics. He is well known for the discovery of "Archimedes" Law', that a body wholly or partly immersed in a fluid loses weight equal to the weight of the fluid displaced. He thus made the first measurement of specific gravity.Archimedes also proved the law of the lever and developed the theory of mechanical advantage, boasting to his cousin Hieron, "Give me a place to stand on and with a lever I will move the whole world." To prove his point, he launched one of the biggest ships built up to that date. During his time in Egypt, he devised the "Archimedean Screw", still used today in Middle Eastern countries for pumping water. He also built an astronomical instrument to demonstrate the movements of the heavenly bodies, a form of orrery.He was General of Ordnance to Heiron, and when the Romans besieged Syracuse, a legionary came across Archimedes drawing geometrical diagrams in the sand. Archimedes immediately told him to 'Keep off and the soldier killed him. He also experimented with burning glasses and mirrors for setting fire to wooden ships.[br]Further ReadingL.Sprague de Camp, 1963, Ancient Engineers, Souvenir Press. E.J.Dijksterhuis, 1956, Archimedes, Copenhagen: Munksgaard.IMcN
- 1
- 2
См. также в других словарях:
geometrical proportion — Proportion Pro*por tion, n. [F., fr. L. proportio; pro before + portio part or share. See {Portion}.] [1913 Webster] 1. The relation or adaptation of one portion to another, or to the whole, as respect magnitude, quantity, or degree; comparative… … The Collaborative International Dictionary of English
Geometrical square — Square Square (skw[^a]r), n. [OF. esquarre, esquierre, F. [ e]querre a carpenter s square (cf. It. squadra), fr. (assumed) LL. exquadrare to make square; L. ex + quadrus a square, fr. quattuor four. See {Four}, and cf. {Quadrant}, {Squad},… … The Collaborative International Dictionary of English
geometrical clamp — noun : a clamp that holds a rigid body immovable by keeping it in six point contact with an immovable rigid support … Useful english dictionary
Black body — As the temperature decreases, the peak of the blackbody radiation curve moves to lower intensities and longer wavelengths. The blackbody radiation graph is also compared with the classical model of Rayleigh and Jeans … Wikipedia
n-body problem — This article is about the problem in classical mechanics. For the problem in quantum mechanics, see Many body problem. The n body problem is the problem of predicting the motion of a group of celestial objects that interact with each other… … Wikipedia
Rigid body dynamics — Classical mechanics Newton s Second Law History of classical mechanics … Wikipedia
Platonic body — noun any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent • Syn: ↑regular polyhedron, ↑regular convex solid, ↑regular convex polyhedron, ↑Platonic solid, ↑ideal solid • Hypernyms:… … Useful english dictionary
Hungary — This article is about the European country. For other uses, see Hungary (disambiguation). Republic of Hungary Magyar Köztársaság … Wikipedia
solid — solidly, adv. solidness, n. /sol id/, adj. 1. having three dimensions (length, breadth, and thickness), as a geometrical body or figure. 2. of or pertaining to bodies or figures of three dimensions. 3. having the interior completely filled up,… … Universalium
Wikipedia:Did you know/Statistics — Current (main page) (T:DYK) Queue (T:DYK/Q) Nominations (T:TDYK) Discussion (WT:DYK) Rules (WP:DYK) Supplementary rules (WP:DYKSG) Reviewing guide (WP:DYKR) … Wikipedia
solid — /ˈsɒləd / (say soluhd) adjective 1. having three dimensions (length, breadth, and thickness), as a geometrical body or figure. 2. of or relating to bodies or figures of three dimensions: solid geometry. 3. having the interior completely filled up …