Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Hall Effect01:30

The Hall Effect

4.6K
Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting material. From a historical perspective, this experiment was the first to demonstrate that the charge carriers in most metals are negative.
4.6K
Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

925
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.
925
Laminar and Turbulent Flow01:07

Laminar and Turbulent Flow

11.3K
Fluid dynamics is the study of fluids in motion. Velocity vectors are often used to illustrate fluid motion in applications like meteorology. For example, wind—the fluid motion of air in the atmosphere—can be represented by vectors indicating the speed and direction of the wind at any given point on a map. Another method for representing fluid motion is a streamline. A streamline represents the path of a small volume of fluid as it flows. When the flow pattern changes with time, the...
11.3K
Steady, Laminar Flow in Circular Tubes01:23

Steady, Laminar Flow in Circular Tubes

1.3K
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,...
1.3K
Viscosity01:27

Viscosity

12
Viscosity is a property of fluids that measures their resistance to flow. It is influenced by factors such as the surface area of contact, the gradient of flow speed, and the fluid's viscosity constant, called the coefficient of viscosity. The coefficient of viscosity, also known as dynamic viscosity, is denoted by the symbol η. It determines the proportionality between the viscous force and the gradient of flow speed.Newton's law of viscosity states that the viscous force on a...
12
Viscosity01:17

Viscosity

7.6K
When water is poured into a glass, it falls freely and quickly, whereas if honey or maple syrup is poured over a pancake, it flows slowly and sticks to the surface of the container. This difference in the flow of different kinds of liquids arises due to the fluid friction between the liquid layers and the liquid and the surrounding material. This property of fluids is called fluid viscosity. In this example, water has a lower viscosity than honey and maple syrup.
The SI unit of viscosity is...
7.6K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Uniaxial-stress-induced magnetic transitions in the triangular-lattice antiferromagnet PdCrO<sub>2</sub>.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same author

Structure of domain walls in chiral spin liquids.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Universality of Shallow Global Quenches in Critical Spin Chains.

Physical review letters·2026
Same author

Prospective, non-interventional study of ruxolitinib therapy in patients with polycythaemia vera - German real-world data (PaVe study).

Annals of hematology·2026
Same author

Krylov Winding and Emergent Coherence in Operator Growth Dynamics.

Physical review letters·2026
Same author

Multipolar Fermi Surface Deformations in Sr_{2}RuO_{4} Probed by Resistivity and Sound Attenuation: A Window into Electron Viscosity and the Collision Operator.

Physical review letters·2025
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: Feb 28, 2026

Ultrasound Velocity Measurement in a Liquid Metal Electrode
08:41

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Published on: August 5, 2015

12.2K

Hydrodynamic Electron Flow and Hall Viscosity.

Thomas Scaffidi1, Nabhanila Nandi2, Burkhard Schmidt2

  • 1Department of Physics, University of California, Berkeley, California 94720, USA.

Physical Review Letters
|June 17, 2017
PubMed
Summary
This summary is machine-generated.

Investigating electron gas viscosity in small metallic samples reveals emergent hydrodynamics. We propose methods to experimentally measure both even and odd viscosity components, including Hall viscosity, in mesoscopic systems.

More Related Videos

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

9.1K
Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
08:41

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

9.5K

Related Experiment Videos

Last Updated: Feb 28, 2026

Ultrasound Velocity Measurement in a Liquid Metal Electrode
08:41

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Published on: August 5, 2015

12.2K
An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

9.1K
Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
08:41

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

9.5K

Area of Science:

  • Condensed matter physics
  • Mesoscopic physics
  • Quantum transport

Background:

  • Electron gas viscosity governs transport in small metallic samples.
  • Emergent hydrodynamical theory describes momentum evolution.
  • Hall viscosity, an odd viscosity component, is theoretically predicted but experimentally unconfirmed.

Purpose of the Study:

  • To explore the measurement of even and odd viscosity components.
  • To investigate Hall viscosity in mesoscopic systems.
  • To provide experimental guidance for observing hydrodynamic electronic transport.

Main Methods:

  • Microscopic calculations of electron gas transport.
  • Theoretical analysis of mesoscopic samples.
  • Exploring effects of applied magnetic fields.

Main Results:

  • Established a framework for measuring electron viscosity components.
  • Identified key signatures of hydrodynamic transport.
  • Proposed experimental protocols for Hall viscosity detection.

Conclusions:

  • Experimental confirmation of Hall viscosity is feasible.
  • Hydrodynamic electronic transport offers new avenues for condensed matter research.
  • Understanding viscosity is crucial for novel electronic devices.