Ground resonance — Ground resonance, in fully articulated multi bladed helicopters, is a hazardous condition during touchdown or at other times when the helicopter is running while sitting on the ground. A series of shocks to the landing gear can pass through to… … Wikipedia
resonance — The energetic vibration of a body produced by application of a periodic force of nearly the same frequency as that of the free vibration of the affected body. It is the condition of two bodies adjusted to have the same frequency of vibration.… … Aviation dictionary
Resonance Raman spectroscopy — Resonance Raman (RR) spectroscopy is a specialized implementation of the more general Raman spectroscopy. Overview As in Raman spectroscopy, RR spectroscopy provides information about the vibrations of molecules, and can also be used for… … Wikipedia
Ground Zero Man — is a science fiction novel by Bob Shaw, first published in 1971, and then revised as The Peace Machine in 1985.The plot follows the main character, Lucas Hutchman, an undistinguished mathematician , who invents a machine that may detonate… … Wikipedia
Resonance — This article is about resonance in physics. For other uses, see Resonance (disambiguation). Resonant redirects here. For the phonological term, see Sonorant. Increase of amplitude as damping decreases and frequency approaches resonant frequency… … Wikipedia
Resonance (chemistry) — For other uses, see Resonance (disambiguation). Two of the contributing structures of nitrogen dioxide In chemistry, resonance or mesomerism [1] is a way of describing delocalized electrons within certain molecules or … Wikipedia
Resonance disaster — The resonance disaster designates the destruction of a building or a technical mechanism by lively oscillations in the mechanics and construction. A cause for it is the resonance: The energy is optimally transferred when periodic suggestion and… … Wikipedia
Mechanical resonance — This article is about mechanical resonance in physics and engineering. For a general description of resonance, see resonance. For mechanical resonance of sound including musical instruments, see acoustic resonance. For the music album by the… … Wikipedia
Nuclear magnetic resonance — This article is about the physical phenomenon. For its use as a method in spectroscopy, see Nuclear magnetic resonance spectroscopy. NMR redirects here. For other uses, see NMR (disambiguation). First 1 GHz NMR Spectrometer (1000 MHz,… … Wikipedia
Nuclear quadrupole resonance — NQR redirects here. For the Tufts University tradition, see Naked Quad Run. Nuclear quadrupole resonance spectroscopy or NQR is a chemical analysis technique related to nuclear magnetic resonance (NMR).[1] Principle In NMR, nuclei with spin ≥ 1/2 … Wikipedia
