rotational constant

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• Rotational spectroscopy — Part of the rotational vibrational spectrum of carbon monoxide (CO) gas (from FTIR), showing the presence of P and R branches. Frequency is on the x axis, and absorbance on the y axis. Rotational spectroscopy or microwave spectroscopy studies the …   Wikipedia

• Rotational temperature — The rotational temperature is commonly used in thermodynamics, to simplify certain equations. It has units of temperature and is defined as heta {rot} = frac{ar B}{k}Where ar B is the rotational constant, and k is the Boltzmann constant, given… …   Wikipedia

• Rotational-vibrational coupling — occurs when the rotation frequency of an object is close to or identical to a natural internal vibration frequency. The animation on the right shows a simple example. The motion depicted in the animation is for the idealized situation that the… …   Wikipedia

• Rotational delay — is one of the three delays associated with reading or writing data on a computer s disk drive, and somewhat similar for CD or DVD drives. The others are seek time and transfer time, and their sum is access time. The term applies to rotating… …   Wikipedia

• Rotational speed — (sometimes called speed of revolution) indicates, for example, how fast a motor is running. Rotational speed is equivalent to angular speed, but with different units. Rotational speed tells how many complete rotations (i.e. revolutions or cycles… …   Wikipedia

• Rotational diffusion — is a process by which the equilibrium statistical distribution of the overall orientation of particles or molecules is maintained or restored. Rotational diffusion is the counterpart of translational diffusion, which maintains or restores the… …   Wikipedia

• rotational fluid — a rotational fluid flow can contain streamlines that loop back on themselves. Hence, fluid particles following such streamlines will travel along closed paths. Bounded (and hence nonuniform) viscous fluids exhibit rotational flow, typically… …   Mechanics glossary

• Constant-velocity joint — Rzeppa six ball CV joint Constant velocity joints (aka homokinetic or CV joints) allow a drive shaft to transmit power through a variable angle, at constant rotational speed, without an appreciable increase in friction or play. They are mainly… …   Wikipedia

• constant linear velocity —    Abbreviated CLV. A changing speed of rotation. CDROM disk drives use a CLV encoding scheme to make sure that the data density remains constant. Information on a compact disc is stored in a single, spiral track, divided into many equal length… …   Dictionary of networking

• Planck constant — Planck s relation redirects here. For the law governing black body radiation, see Planck s law. Values of h Units 6.62606957(29)×10−34 J·s[1] 4.135 …   Wikipedia

• Boltzmann constant — For the constant pertaining to energy of black body radiation see Stefan–Boltzmann constant Values of k[1] Units 1.3806488(13)×10−23 J K−1 8.617332 …   Wikipedia