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

Perpendicular-Axis Theorem01:16

Perpendicular-Axis Theorem

3.3K
The perpendicular-axis theorem states that the moment of inertia of a planar object about an axis perpendicular to its plane is equal to the sum of the moments of inertia about two mutually perpendicular concurrent axes lying in the plane of the body.
Consider a circular disc of mass M and radius R lying along an x-y plane. The origin lies at the center of the disc, and the z-axis is perpendicular to the disc's plane. All three axes coincide at the disc's center. The moment of inertia of this...
3.3K
First Law: Particles in Two-dimensional Equilibrium01:18

First Law: Particles in Two-dimensional Equilibrium

5.1K
Recall that a particle in equilibrium is one for which the external forces are balanced. Static equilibrium involves objects at rest, and dynamic equilibrium involves objects in motion without acceleration; but it is important to remember that these conditions are relative. For instance, an object may be at rest when viewed from one frame of reference, but that same object would appear to be in motion when viewed by someone moving at a constant velocity.
Newton's first law tells us about...
5.1K
First Law: Particles in One-dimensional Equilibrium01:10

First Law: Particles in One-dimensional Equilibrium

7.0K
Newton's first law of motion states that a body at rest remains at rest, or if in motion, remains in motion at constant velocity, unless acted on by a net external force. It also states that there must be a cause for any change in velocity (a change in either magnitude or direction) to occur. This cause is a net external force. For example, consider what happens to an object sliding along a rough horizontal surface. The object quickly grinds to a halt, due to the net force of friction. If...
7.0K
Reduced Mass Coordinates: Isolated Two-body Problem01:12

Reduced Mass Coordinates: Isolated Two-body Problem

1.4K
In classical mechanics, the two-body problem is one of the fundamental problems describing the motion of two interacting bodies under gravity or any other central force. When considering the motion of two bodies, one of the most important concepts is the reduced mass coordinates, a quantity that allows the two-body problem to be solved like a single-body problem. In these circumstances, it is assumed that a single body with reduced mass revolves around another body fixed in a position with an...
1.4K
Virtual Work for a System of Connected Rigid Bodies01:06

Virtual Work for a System of Connected Rigid Bodies

430
Virtual work is a powerful method used to solve problems involving several connected rigid bodies. When the system is in equilibrium, virtual work is zero. This allows the calculation of the resulting forces when a system undergoes a virtual displacement. When attempting to analyze such a system, first, use a free-body diagram, where an independent coordinate represents the configuration of the links, and mark its deflected position resulting from the positive virtual displacement.
Next,...
430
Parallel-Axis Theorem for an Area01:12

Parallel-Axis Theorem for an Area

1.6K
The moment of inertia is a fundamental concept in mechanical engineering that plays a significant role in designing rotationally symmetric objects such as flywheels, gears, and other mechanical systems. In this context, we will discuss the moment of inertia of a flywheel rotating about its centroidal axis and how it relates to the moment of inertia about an axis parallel to it.
For a flywheel approximated as a solid disc, consider an infinitesimal differential element with an arbitrary distance...
1.6K

You might also read

Related Articles

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

Sort by
Same author

Shape dictates the motion of topological defects in active nematics.

Physical review. E·2026
Same author

Fibronectin matrix remodelling modulates the active nematic dynamics of cancer-associated fibroblasts.

Nature materials·2026
Same author

Superdiffusion and Antidiffusion in an Aligned Active Suspension.

Physical review letters·2026
Same author

Reentrant melting of scarred odd crystals by self-shear.

Nature communications·2026
Same author

Screw symmetry, chiral hydrodynamics, and odd instability in active cholesterics.

Physical review. E·2025
Same author

Ordering and Defect Cloaking in Nonreciprocal Lattice XY Models.

Physical review letters·2025

Related Experiment Video

Updated: Jul 23, 2025

Forming, Confining, and Observing Microtubule-Based Active Nematics
08:37

Forming, Confining, and Observing Microtubule-Based Active Nematics

Published on: January 13, 2023

2.7K

Erratum: Oriented Active Solids [Phys. Rev. Lett. 123, 238001 (2019)].

Ananyo Maitra, Sriram Ramaswamy

    Physical Review Letters
    |July 14, 2023
    PubMed
    Summary
    This summary is machine-generated.

    This study corrects a previously published article DOI. The correction ensures accurate citation and referencing for the scientific community.

    More Related Videos

    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
    06:26

    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

    Published on: May 15, 2017

    7.2K
    Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
    11:51

    Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

    Published on: February 22, 2018

    8.8K

    Related Experiment Videos

    Last Updated: Jul 23, 2025

    Forming, Confining, and Observing Microtubule-Based Active Nematics
    08:37

    Forming, Confining, and Observing Microtubule-Based Active Nematics

    Published on: January 13, 2023

    2.7K
    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
    06:26

    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

    Published on: May 15, 2017

    7.2K
    Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
    11:51

    Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

    Published on: February 22, 2018

    8.8K

    Area of Science:

    • Physics
    • Scientific Publishing

    Context:

    • Ensuring the accuracy of scientific literature is crucial for research integrity.
    • Proper citation and referencing are fundamental to academic discourse.

    Purpose:

    • To correct an error in the article DOI (Digital Object Identifier).
    • To provide the accurate DOI for the referenced publication.

    Summary:

    • The article DOI 10.1103/PhysRevLett.123.238001 has been corrected.
    • This ensures that readers can access the intended scientific article.

    Impact:

    • Improves the reliability of scientific records.
    • Facilitates accurate retrieval of research publications.