📢 What is sound?
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Sound is a mechanical wave that travels through a medium such as air, water, or solids.
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Sound is produced by the vibrations of particles, for example, when a guitar string is plucked or a speaker is powered.
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The particles of the medium pass the vibration on to neighboring particles, creating a wave movement.
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Our ear perceives these mechanical waves as noises, tones, or sounds.
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Sound always needs a {carrier medium}{A carrier medium is something that transports information, energy, or signals from one place to another. For example, air is the carrier medium for sound because it transmits the vibrations.} and cannot propagate in a {vacuum}{A vacuum is a space where almost no particles like air or dust are present. Because there is almost nothing, sound waves cannot spread and you hear nothing.}.
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⚙ einfuhrung