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The definition of sound, simplified, is a hearable noise. The tree will make a sound, even if nobody heard it, simply because it could have been heard. The answer to this question depends on the definition of sound. We can define sound as our perception of air vibrations. Therefore, sound does not exist if we do not hear it.
This is an accepted version of this page This is the latest accepted revision, reviewed on 13 December 2024. Hypothesis about life in the universe For the concept of a fine-tuned Earth, see Rare Earth hypothesis. Part of a series on Physical cosmology Big Bang · Universe Age of the universe Chronology of the universe Early universe Inflation · Nucleosynthesis Backgrounds Gravitational wave ...
The strategic deployment of noise by fans, intended to distract opposing teams, became an integral part of sports culture, especially in college football where marching bands played a significant role. The widespread availability of electronic devices capable of generating significant noise levels led sports leagues to regulate artificial noise.
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Noise has been found to affect the vocalizations of animals that vocalize against a background of human noise pollution. [26] Experimentally, the Lombard effect has also been found in the vocalization of: Budgerigars [8] Canaries [27] Cats [28] Chickens [29] Common marmosets [30] Cottontop tamarins [31] Japanese quail [32] Nightingales [9 ...
Animal sound collections, managed by museums of natural history and other institutions, are an important tool for systematic investigation of signals. Many effective automated methods involving signal processing, data mining, machine learning and artificial intelligence [ 9 ] techniques have been developed to detect and classify the bioacoustic ...
NASA May Add Messages from Earth to Pluto Probe for Aliens Videos of eerie noises erupting from the skies have recently surfaced on YouTube, sending people into a panic around the world.
At the Geneva Motor Show last week, the small but vocal contingent of shooting-brake buffs lamented that the Mazda6 wagon won't be coming to our shores, although they can take comfort in the fact ...