oscillatory mode
51sound reception — Introduction response of an organism s aural mechanism, the ear, to a specific form of energy change, or sound waves. Sound waves can be transmitted through gases, liquids, or solids, but the hearing function of each species is particularly …
52General relativity — For a generally accessible and less technical introduction to the topic, see Introduction to general relativity. General relativity Introduction Mathematical formulation Resources …
53Harmonic oscillator — This article is about the harmonic oscillator in classical mechanics. For its uses in quantum mechanics, see quantum harmonic oscillator. Classical mechanics …
54Dream — For other uses, see Dream (disambiguation). The Knight s Dream , 1655, by Antonio de Pereda Dreams are successions of images, ideas, emotions, and sensations that occur involuntarily in the mind during certain stages of sleep …
55Spark-gap transmitter — A spark gap transmitter is a device for generating radio frequency electromagnetic waves. These devices served as the transmitters for most wireless telegraphy systems for the first three decades of radio (1887 ndash;1916) and the first… …
56Dutch roll — is a type of aircraft motion, consisting of an out of phase combination of tail wagging and rocking from side to side. This yaw roll coupling is one of the basic flight dynamic modes (others include phugoid, short period, and spiral divergence).… …
57Contributors to general relativity — General relativity Introduction Mathematical formulation Resources Fundamental concepts …
58Jozef T. Devreese — is a Belgian scientist, with a long career in condensed matter physics. He is Professor Emeritus of Theoretical Physics at the Universiteit Antwerpen. He obtained a Ph.D. degree in Science, group Physics, Katholieke Universiteit Leuven, 1964.… …
59Pelagic stingray — Conservation status …
60Vibrations of a circular drum — [ drum (mode u {12} with the notation below). Other modes are shown at the bottom of the article.] The vibrations of an idealized circular drum, essentially an elastic membrane of uniform thickness attached to a rigid circular frame, are… …
