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Как эхо происходит?

Зеркала будут течь изображения и отправить свет обратно. Стены также отправить голоса обратно. Если вы стоите немного подальше от высокой стены или большой скалы, вы услышите ваш голос спиннинг назад через несколько секунд.

Если звуковая волна встречает стену или высокую и широкую поверхность скалы, она вращается назад к своему источнику. Так происходит эхо. Если извлеченный звук короткий и звуковые волны достигают батарею как нормальный, эхо слышится ясно. Следы звука остаются в ухе в течение 1/10 секунд.

Потому что скорость звука в воздухе составляет 340 метров в секунду, расстояние между источником звука и батареей, чтобы быть эхо должно быть не менее 17 метров.

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