Some molecules and ions cannot be described using a single Lewis structure. This is because of resonance, the bonding in molecules and ions that result in more than one Lewis structure. Resonance is a feature of the valence-bond theory. In the...

Anyone who has watched a child swinging on a playground swing has witnessed a vibrating system in resonance. The phenomenon of resonance appears often in everyday life; another example is the vibration of the body panels of a car containing a loud car...

If a musical instrument or human voice of a certain pitch produces a musical note, it can cause a nearby violin or piano string of the same pitch to begin to vibrate. This phenomenon is an example of resonance. Many objects have a "natural" frequency...

In physics, the relatively large selective response of an object or a system that vibrates in step with an externally applied vibration. Acoustical resonance is the vibration induced in a string of a given pitch when a note of the same pitch is...

n. 1. The physical phenomenon in which some body which is capable of vibration prefers to vibrate at certain frequencies rather than others, thereby favouring and enhancing those frequencies while suppressing others. The formants of speech represent...

An increase in the strength of sound waves through a co-oscillation of other sources of sound whose own frequency is identical with the frequency of the primary sound source. In this manner, certain frequencies increase in speaking and singing by a...

A sympathetic vibration (including those capable of acoustic measurement) induced in a body or system in response to an external vibration. Resonance is often variable with frequency and that at which the greatest response with the minimum loss of...

n. 1. See sonorant. 2. Any segment made with open approximation: a vowel, an approximant, a lateral approximant, [h] or [?]. This is the usage of Laver (1994). 3. In the usage of Catford (1988), any non-high vowel. This usage is anomalous. 4. See...

In physics, resonance is the phenomenon of producing large amplitude of vibrations by a small periodic driving force. It is the tendency of a system to oscillate at maximum amplitude at a certain frequency. This frequency is known as the system's...