small angle
71hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
72Charts on SO(3) — In mathematics, the special orthogonal group in three dimensions, otherwise known as the rotation group SO(3), is a naturally occurring example of a manifold. The various charts on SO(3) set up rival coordinate systems: in this case there cannot… …
73Reflection high energy electron diffraction — (RHEED) is a technique used to characterize the surface of crystalline materials. RHEED systems gather information only from the surface layer of the sample, which distinguishes RHEED from other materials characterization methods that rely also… …
74Rutherford backscattering spectroscopy — Rutherford backscattering spectrometry (RBS) is an analytical technique used in materials science. Sometimes referred to as high energy ion scattering (HEIS) spectrometry, RBS is used to determine the structure and composition of materials by… …
75Hip — For other uses of the term, see hip (disambiguation). Hip (anatomy) Bones of the hip Latin coxa Gray s …
76Rings of Uranus — The scheme of Uranus s ring moon system. Solid lines denote rings; dashed lines denote orbits of moons. The planet Uranus has a system of rings intermediate in complexity between the more extensive set around Saturn and the simpler systems around …
77Neutrino oscillation — is a quantum mechanical phenomenon predicted by Bruno Pontecorvo[1] whereby a neutrino created with a specific lepton flavor (electron, muon or tau) can later be measured to have a different flavor. The probability of measuring a particular… …
78Center of pressure — The center of pressure is the point on a body where the sum total of the aerodynamic pressure field acts, causing a force and no moment about that point. Mathematically it can be said that the net pressure force on the body acts through this… …
79laser — /lay zeuhr/, n. Physics. a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase. Also called optical maser. [1955 60; …
80Madison Symmetric Torus — Infobox Magnetic Fusion Device name = Madison Symmetric Torus dev type=Reversed field pinch loc=Madison, Wisconsin, USA rad maj = 1.50 m rad min = 52 cm aspect = 2.88|The Madison Symmetric Torus (MST) is a reversed field pinch (RFP) physics… …
