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Videos de Conceptos Relacionados

Travelling Waves01:04

Travelling Waves

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A wave is a disturbance that propagates from its source, repeating itself periodically, and is typically associated with simple harmonic motion. Mechanical waves are governed by Newton's laws and require a medium to travel. A medium is a substance in which a mechanical wave propagates, and the medium produces an elastic restoring force when it is deformed.
Water waves, sound waves, and seismic waves are some examples of mechanical waves. For water waves, the wave propagation medium is...
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Sound Waves01:01

Sound Waves

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Sound waves can be thought of as fluctuations in the pressure of a medium through which they propagate. Since the pressure also makes the medium's particles vibrate along its direction of motion, the waves can be modeled as the displacement of the medium's particles from their mean position.
Sound waves are longitudinal in most fluids because fluids cannot sustain any lateral pressure. In solids, however, shear forces help in propagating the disturbance in the lateral direction as well....
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Shock Waves01:16

Shock Waves

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While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
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Magnetic Susceptibility and Permeability01:31

Magnetic Susceptibility and Permeability

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In linear magnetic materials, like paramagnets and diamagnets, magnetization is proportional to the magnetic field intensity. The constant of proportionality, a dimensionless number, is called magnetic susceptibility. The value of the susceptibility depends on the type of material.
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...
2.9K
Sound as Pressure Waves01:17

Sound as Pressure Waves

3.3K
Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...
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Permeability of Concrete01:25

Permeability of Concrete

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Permeability in the context of concrete refers to how easily liquids or gases can pass through the material. This quality is crucial for assessing the water-tightness and durability of concrete structures and their resistance to chemical attacks. Concrete permeability can be determined through comparative laboratory tests. These tests typically involve sealing a concrete specimen from the sides, applying water pressure to the top surface with pressure, and measuring the amount of water passing...
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Video Experimental Relacionado

Updated: Apr 29, 2026

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores
09:32

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Las ondas sísmicas aumentan la permeabilidad.

Jean E Elkhoury, Emily E Brodsky, Duncan C Agnew

    Nature
    |July 1, 2006
    PubMed
    Resumen

    Los terremotos aumentan temporalmente la permeabilidad de los acuíferos, afectando el flujo de agua subterránea y potencialmente influyendo en la actividad sísmica. Este estudio monitoreó los niveles de agua de pozo durante 20 años para cuantificar estos cambios de permeabilidad inducidos por terremotos.

    Área de la Ciencia:

    • La geofísica es la geofísica.
    • Hidrología Hidrología Hidrología.
    • Sismología Sismología Sismología.

    Sus antecedentes:

    • Los terremotos tienen un impacto significativo en los sistemas hidrológicos, alterando los niveles de los pozos de agua, el flujo de las corrientes y la descarga de manantiales.
    • El aumento de la permeabilidad en las fallas es un mecanismo clave que explica muchos cambios hidrológicos inducidos por terremotos.
    • La medición de la permeabilidad de los acuíferos a lo largo del tiempo es crucial para comprender la dinámica de los fluidos y las interacciones sísmicas.

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