Assertion: external ear | /r/CapableOf | work like a tube resonator
Facets:
value: with the strongest first resonance
type: OTHER
value: acoustically
type: MANNER
Source sentences:
text: Acoustically, the outer ear works like a tube resonator, with the strongest first resonance around 3 kHz, where a quarter wavelength of sound in air (10 cm / 4 = 2.5 cm) fits the length of the ear canal.