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Come si verifica Echo?

Gli specchi scorrono le immagini e rispediranno la luce. Le mura rimandano anche le voci. Se ti allontano un po' più lontano da un muro alto o da una grande scogliera, sentirai la tua voce che gira indietro di qualche secondo.

Se un'onda sonora incontra un muro o una superficie rocciosa alta e larga, ruota all'indietro verso la sua sorgente. Ecco come avviene l'eco. Se il suono estratto è breve e le onde sonore raggiungono la batteria come di consueto, l'eco viene ascoltato chiaramente. Le tracce del suono rimangono nell'orecchio per 1/10 secondi.

Poiché la velocità del suono nell'aria è 340 metri al secondo, la distanza tra la sorgente audio e la batteria per essere un'eco deve essere di almeno 17 metri.

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