Video Experimental Relacionado

Updated: Jun 24, 2026

Flash-and-Freeze: A Novel Technique to Capture Membrane Dynamics with Electron Microscopy
10:01

Flash-and-Freeze: A Novel Technique to Capture Membrane Dynamics with Electron Microscopy

Published on: May 1, 2017

Circulación y derretimiento debajo de la plataforma de hielo de Ross

S S Jacobs, A L Gordon, J L Ardai

    Science (New York, N.Y.)
    |February 2, 1979
    PubMed
    Resumen

    Las observaciones oceanográficas bajo la plataforma de hielo de Ross revelan aguas estratificadas, circulación activa y derretimiento. El agua de mar caliente alimenta este derretimiento, produciendo agua de plataforma de hielo que fluye hacia el mar de Ross.

    Más Videos Relacionados

    Evolution of Staircase Structures in Diffusive Convection07:28

    Evolution of Staircase Structures in Diffusive Convection

    Published on: September 5, 2018

    Single Particle Cryo-Electron Microscopy: From Sample to Structure11:52

    Single Particle Cryo-Electron Microscopy: From Sample to Structure

    Published on: May 29, 2021

    Videos de Conceptos Relacionados

    Phase Transitions: Melting and Freezing02:39

    Phase Transitions: Melting and Freezing

    Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
    Phase Transitions: Sublimation and Deposition02:33

    Phase Transitions: Sublimation and Deposition

    Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
    Recrystallization: Solid–Solution Equilibria01:10

    Recrystallization: Solid–Solution Equilibria

    Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...
    Steady, Laminar Flow Between Parallel Plates01:17

    Steady, Laminar Flow Between Parallel Plates

    Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
    Steady, Laminar Flow in Circular Tubes01:23

    Steady, Laminar Flow in Circular Tubes

    Hagen-Poiseuille flow describes a viscous fluid's steady, incompressible flow through a cylindrical tube with a constant radius R. This flow profile is often applied to understand fluid transport in narrow channels, such as capillaries. It serves as a foundational example of laminar flow. In this model, cylindrical coordinates (r,θ,z) are used to describe the radial (r), angular (θ), and axial (z) dimensions within the tube. For Hagen-Poiseuille flow, the velocity profile is purely axial,...
    Laminar Flow01:27

    Laminar Flow

    Laminar flow represents a smooth, orderly fluid motion where particles move along parallel paths, resulting in minimal mixing between layers. Streamlined particle paths characterize this flow regime and occur under conditions where viscous forces dominate over inertial forces. The distinction between laminar, transitional, and turbulent flow is primarily determined by the Reynolds number, a dimensionless quantity calculated as: