Resonator Resonator A resonator is a device or system that exhibits resonance or resonant behavior, that is, it naturally oscillates at some frequencies, called its resonant frequencies, with greater amplitude than at others. The oscillations in a resonator can be either electromagnetic or mechanical (including acoustic). Resonators are used to either generate waves of specific frequencies or to select specific frequencies from a signal. Musical instruments use acoustic resonators that produce sound waves of specific tones. Another example is quartz crystals used in electronic devices such as radio transmitters and quartz watches to produce oscillations of very precise frequency. A cavity
Inside baseball (metaphor) Inside baseball (metaphor) The phrase "inside baseball" is a term used mainly in the United States. It is "a figurative adjective meaning appreciated by only a small group of insiders or aficionados." It usually refers to a detail-oriented approach to the minutiae of a subject, which requires such a specific knowledge about what is being discussed that the nuances are not understood or appreciated by outsiders. According to "Merriam-Webster", the term originated in the 1890s referring to a particular style of playing the game which relied on singles, walks, bunts, and stolen bases rather than power hitting. Within a few