Videos de Conceptos Relacionados
01:24Surface Tension
Surface tension is defined as the force per unit length (γ) acting along the surface of a liquid. It arises due to strong intermolecular forces of attraction. A molecule located inside the bulk of the liquid is surrounded by other molecules and experiences equal forces in all directions. However, a molecule at the surface experiences unbalanced forces because there are more neighboring molecules below than above. This creates a net inward force that pulls surface molecules toward the interior,...
01:12Buoyancy
When an object is placed in a fluid, it either floats or sinks. All objects in a fluid experience a buoyant force. For example, a metal ball sinks, while a rubber ball floats. Similarly, a submarine can sink and float by adjusting its buoyancy. The concept of buoyancy raises several interesting questions. For instance, where does this buoyant force come from? How much buoyant force is required to make an object sink or float? Do objects that sink get any support at all from the fluid?
To get...
To get...
01:16Surface Tension and Surface Energy
When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
01:22Surface Tension of Fluid
Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies with...
Surface tension varies with...
01:06Tidal Forces
The origin of Earth's ocean tides has been a subject of continuous investigation for over 2000 years. However, the work of Newton is considered to be the beginning of the proper understanding of the phenomenon. Ocean tides are the result of gravitational tidal forces. These same tidal forces are present in any astronomical body; they are responsible for the internal heat that creates the volcanic activity on Io, one of Jupiter's moons, and the breakup of stars that get too close to black holes.
01:11Buoyancy and Stability for Submerged and Floating Bodies
In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
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Video Experimental Relacionado
Updated: Jul 11, 2026
08:50
Total Internal Reflection Absorption Spectroscopy (TIRAS) for the Detection of Solvated Electrons at a Plasma-liquid Interface
Published on: January 24, 2018
Tritón: ¿vemos hacia la superficie?
Science (New York, N.Y.)
|July 21, 1989
Resumen
Nuevos datos telescópicos revelan hielo de metano y nitrógeno en la luna de Neptuno Tritón. Esto sugiere que la atmósfera de Tritón es lo suficientemente transparente como para que la luz solar llegue a su superficie, lo que podría revelar características de la superficie.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Astrobiología Astrobiología.
- Ciencias de la atmósfera Ciencias atmosféricas.
Sus antecedentes:
- La luna de Neptuno, Tritón, posee una atmósfera y una composición de superficie únicas.
- Comprender el estado físico de los volátiles en Tritón es clave para entender su entorno.
Objetivo del estudio:
- Para evaluar la cantidad y el estado físico de metano y nitrógeno en Tritón.
- Para determinar la transparencia atmosférica y las condiciones de la superficie en Tritón.
Principales métodos:
- Análisis de nuevos datos telescópicos.
- Mediciones de laboratorio del metano y los volátiles de nitrógeno.
Principales resultados:
- El hielo de metano está presente en la superficie de Tritón.
Conclusiones:
- Las condiciones de la superficie de Tritón están influenciadas por los volátiles tanto atmosféricos como condensados.
- La transparencia de la atmósfera de Tritón tiene implicaciones para los procesos superficiales y las observaciones.
- Se espera que las imágenes de la nave espacial Voyager resuelvan las características de la superficie de Tritón.