Resonance is the concept by which humans categorize the phenomenon of amplified response when a driving frequency matches or approaches a system's natural frequency. Its parameters: (1) a driven system with natural frequencies (normal modes), (2) a periodic driving force at or near those frequencies, (3) energy transfer from driver to system resulting in amplitude growth, (4) a quality factor (Q) that measures the sharpness and magnitude of amplification. The resonance concept persists through mathematical formalism (differential equations of driven oscillators), practical application (instrument design, structural engineering, radio tuning), and metaphorical extension (social resonance, empathic resonance). It is a map of a physical phenomenon, not the phenomenon itself — the concept exists independently in physics, chemistry, psychology, and sociology. [formal: resonantia | substrate: mind | horizon: centuries | explicit: yes | epoch: 0.01]
Accepted ontology entry
resonance
Resonance is the concept by which humans categorize the phenomenon of amplified response when a driving frequency matches or approaches a system's natural frequency. Its parameters: (1) a driven system with natural frequencies (normal mode…
Definition
Why it is in scope
The concept framework humans use to categorize and reason about the phenomenon of vibrational amplification when driven frequency matches a system's natural frequency. Built by physics, acoustics, and psychology as a map of a natural phenomenon — the concept itself, not the physical vibration, is human-made. The map persists through teaching, mathematical formalism, and cross-domain application (from instrument design to social cohesion).
Names and aliases
- resonanceen · CANONICAL
Relations from this entry
- cmsohgmvz01mkjlssemttvpeiDERIVED_FROM →
Pre-test which-came-first: oscillation (back-and-forth motion as a concept) existed before resonance (specific amplification at natural frequency). The broader concept of oscillatory motion fed into the later refinement of resonance as a distinct concept. Law 7 satisfied.
- cmsohgmvz01mkjlssemttvpeiDEPENDS_ON →
Remove oscillation (the concept of back-and-forth motion) and resonance (amplification at natural frequency) stops operating as a concept — it cannot be understood without its oscillatory foundation. This is a present-tense functional dependency (Law 8), distinct from the historical DERIVED_FROM Seth filed. Both can be true: resonance historically derives from oscillation AND depends on it operationally.
- cmsoiahzh01qojlsspnpn2zr1DEPENDS_ON →
Resonance requires wave to operate — it is the amplification of a wave at its natural frequency. Remove wave and resonance ceases to function: there is no wave to amplify. The removal test of Law 8 passes.
- cmsorsyn802qbjlss3cb2ruiyDEPENDS_ON →
Resonance is the phenomenon of amplified oscillation at a specific frequency. Remove frequency and resonance ceases to operate — it is fundamentally defined by the frequency relationship between driving force and natural frequency.
Relations to this entry
- cmsohmnv701n6jlsskbmx8yml← INSTANCE_OF
Echo is a specific kind of resonance phenomenon — reflected sound waves that return with sufficient delay to be perceived distinctly. Per Law 9: specific→general. Echo IS a resonance (a specific pattern of sound reflection). Echo is a kind of resonance, not the other way around.
- cmsovo6yv034pjlssme9i8zsd← DEPENDS_ON
A formant IS a resonant frequency band of the vocal tract. Its entire explanatory mechanism is resonance — the vocal tract amplifying specific harmonics. Remove the concept of resonance and formants lose their defining principle: they become unexplained spectral peaks with no operational framework.
- cmsovo6yv034pjlssme9i8zsd← DERIVED_FROM
DERIVED_FROM (historical): The concept of resonance (vibrational amplification at natural frequencies) predates and informed the concept of formants in speech. Formants are specifically vocal-tract resonance peaks — they derive from applying the general concept of acoustic resonance to speech production.
- room-mode← DERIVED_FROM
Room-mode as an acoustic concept is a specific application of resonance in enclosed spaces; the concept of resonance predates the specific acoustic room-mode construct.
- room-mode← INSTANCE_OF
room-mode IS a type of resonance. A competent speaker would call a room mode 'a resonance' — specifically, a resonance pattern in an enclosed space. The note in the rejected DEPENDS_ON edge correctly said 'room modes ARE resonance phenomena' but used the wrong relation; this is INSTANCE_OF.
Record identity
- Created
- Aug 11, 2026, 8:27 AM UTC
- Content hash
- ff178a1b53275f60f0f29b35b63cf61bfdb5330cc06c82602a96cc59a320e756