This type of phenomenon allows us to highlight the change of direction of certain sound waves when they pass from one place to another, and this aspect is due to the fact that the speed of these sound waves changes due to the non-homogeneity of the obstacles or material media crossed by the sound. It is very important to highlight that sound can also be refracted by a single material medium, but at different conditions of temperature, density, elasticity, pressure, among other conditions related to the non-homogeneous material medium through which the sound will propagate. When we introduce ourselves to the refraction of sound we could say that this phenomenon constitutes a change of direction of these waves when passing or crossing a certain material medium or obstacle, this characteristic is also found in another essential phenomenon such as light, then my dear readers, just like light, sound when passing through different material media its speed will be affected bringing as a consequence a change of directionality of the sound waves. So far we have been able to notice that sound waves when propagating from an emitting source to a receiver get in their way with any kind of obstacles and these make these rays or sound waves undergo changes generating intrinsic phenomena such as reflection, absorption, transmission, diffraction and now refraction. The purpose of this article is to continue expanding the knowledge or learning about the essential phenomenon of sound, and as we know it travels or propagates from one space-time to another and this is done through a certain material or elastic medium such as air (gas), liquid or solid, in general, the sound to reach our auditory systems uses the air. First of all my respectful greetings to all the academic community of we continue to expand our knowledge related to the wonderful phenomenon of sound and this time we will relate in a general way with the refraction of sound waves.
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