resonating frequency

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• Extremely low frequency — (ELF) is the band of radio frequencies from 3 to 30 Hz. ELF was used by the US Navy and Soviet/Russian Navy to communicate with submerged submarines.ExplanationBecause of the electrical conductivity of salt water, submarines are shielded from… …   Wikipedia

• Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr …   Wikipedia

• Wolf tone — A wolf tone, or simply a wolf , is produced when a played note matches the natural resonating frequency of the body of a musical instrument, producing a sustaining sympathetic artificial overtone that amplifies and expands the frequencies of the… …   Wikipedia

• Types of Tuvan throat singing — Tuvan throat singing is one particular variant of throat singing practiced by the Tuva people of southern Siberia.The art of Tuvan throat singing is a style in which two or more pitches sound simultaneously over a fundamental pitch, producing a… …   Wikipedia

• Comb — For other uses, see Comb (disambiguation). A comb A Punjabi w …   Wikipedia

• Split Ring Resonator — A split ring resonator (SRR) is a component part of a negative refractive index material. SRRs are a pair of concentric annular rings with splits in them at opposite ends. The rings are made of nonmagnetic metal like copper and have small gap… …   Wikipedia

• Donald Duck talk — is a form of vocalization linked to the voice of the Disney cartoon character Donald Duck. His voice was created by Clarence Charles Ducky Nash using buccal speech, a form of speech that uses the buccal or cheek sides, rather than the glottis and …   Wikipedia

• Bass trap — Bass Traps are acoustic absorbers or sound baffles which have the ability to capture low frequency sound. Bass traps are used to provide acoustic absorptive treatment in rooms and are common tools used in architectural acoustics. Bass traps are… …   Wikipedia

• Optical parametric oscillator — Infrared optical parametric oscillator An optical parametric oscillator (OPO) is a parametric oscillator which oscillates at optical frequencies. It converts an input laser wave (called pump ) into two output waves of lower frequency (ωs,ωi) by… …   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

• Wireless energy transfer — or wireless power is the transmission of electrical energy from a power source to an electrical load without artificial interconnecting conductors. Wireless transmission is useful in cases where interconnecting wires are inconvenient, hazardous,… …   Wikipedia