Concavities
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concavities — con·cav·i·ty || kÉ’n kævÉ™tɪ n. state of being concave (curving inward like the inside of a bowl, hollow and curved) … English contemporary dictionary
Space activity suit — The Space Activity Suit developed by Paul Webb and built under a NASA project. The image shows the complete multi layer suit and positive pressure helmet, lacking only the backpack. (taken 1971) A space activity suit is a kind of spacesuit which… … Wikipedia
Second partial derivative test — In mathematics, the second partial derivatives test is a method in multivariable calculus used to determine if a critical point ( x , y ) is a minimum, maximum or saddle point.Suppose that :M = f {xx}(a,b)f {yy}(a,b) left( f {xy}(a,b) ight)^2 or… … Wikipedia
951 Gaspra — Infobox Planet | discovery=yes | physical characteristics = yes | bgcolour=#FFFFC0 | name=951 Gaspra caption=NASA image of Gaspra; the colors are exaggerated discoverer=G. N. Neujmin discovered = July 30, 1916 alt names = SIGMA 45; A913 YA;… … Wikipedia
fracture — fracturable, adj. fractural, adj. fracturer, n. /frak cheuhr/, n., v., fractured, fracturing. n. 1. the breaking of a bone, cartilage, or the like, or the resulting condition. Cf. comminuted fracture, complete fracture, compound fracture,… … Universalium
depth gauge — noun a gauge for measuring the depth of grooves or holes or other concavities • Syn: ↑depth gage • Hypernyms: ↑gauge, ↑gage * * * noun : a gauge for measuring the depth of holes, grooves, or concavities * * * depth gauge, an apparatus for the… … Useful english dictionary
Concavity — Con*cav i*ty, n.; pl. {Concavities}. [L. concavitas: cf. F. concavit[ e]. See {Concave}.] A concave surface, or the space bounded by it; the state of being concave. [1913 Webster] … The Collaborative International Dictionary of English
Oil lamp — Neolithic stone lamps in Thousand Lamp Museum in Qiandeng town of Kunshan … Wikipedia
Parabolic coordinates — are a two dimensional orthogonal coordinate system in which the coordinate lines are confocal parabolas. A three dimensional version of parabolic coordinates is obtained by rotating the two dimensional system about the symmetry axis of the… … Wikipedia
Cookiecutter shark — For other species of cookiecutter sharks, see Isistius. Cookiecutter shark Conservation status … Wikipedia
