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

Stability of structures01:14

Stability of structures

197
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
197
Stability of Equilibrium Configuration: Problem Solving01:13

Stability of Equilibrium Configuration: Problem Solving

634
The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
Problem-solving in the context of the stability of equilibrium configuration...
634
Machines: Problem Solving II01:30

Machines: Problem Solving II

336
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. Consider a lifting tong carrying a 100 kg load. It comprises movable sections DAF and CBG linked together with member AB.
336
Machines: Problem Solving I01:22

Machines: Problem Solving I

360
A toggle clamp is a mechanical device commonly used for holding and clamping objects in various applications, such as woodworking, metalworking, and assembly operations. Consider a toggle clamp subjected to a force of 200 N at the handle. The vertical clamping force can be calculated, provided the dimensions of the toggle clamp are known.
The toggle clamp system is a machine structure consisting of movable, pin-connected multi-force members that form a stabilized system to transmit forces. The...
360
Rigid Body Equilibrium Problems - II01:21

Rigid Body Equilibrium Problems - II

7.1K
A rigid body is in static equilibrium when the net force and the net torque acting on the system are equal to zero.
Consider two children sitting on a seesaw, which has negligible mass. The first child has a mass (m1) of 26 kg and sits at point A, which is 1.6 meters (r1) from the pivot point B; the second child has a mass (m2) of 32 kg and sits at point C. How far from the pivot point B should the second child sit (r2) to balance the seesaw?
7.1K
Rigid Body Equilibrium Problems - I00:49

Rigid Body Equilibrium Problems - I

4.5K
A rigid body is said to be in static equilibrium when the net force and the net torque acting on the system is equal to zero. To solve for rigid body equilibrium problems, do the following steps.
4.5K

You might also read

Related Articles

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

Sort by
Same author

Transport properties of active particles moving on adjustable networks.

Soft matter·2026
Same author

Flocking as a continuous phase transition in self-aligning active crystals.

The Journal of chemical physics·2026
Same author

Active Particles in Tunable Compressible Environments.

Small science·2026
Same author

Observing the mechanism of delayed collapse in colloidal gels: Yielding while becoming stronger.

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

Narrowing down the cause of the hard-sphere nucleation discrepancy: The free energy of precritical nuclei is consistent with predictions.

Science advances·2026
Same author

Dynamical Density Functional Theory for Dense Odd-Diffusive Fluids.

The journal of physical chemistry. B·2026

Related Experiment Video

Updated: Jul 26, 2025

A Vibrotactile Feedback Device for Seated Balance Assessment and Training
09:13

A Vibrotactile Feedback Device for Seated Balance Assessment and Training

Published on: January 20, 2019

6.4K

Stability of interlocked self-propelled dumbbell clusters.

Fabian Jan Schwarzendahl1, Abraham Maulean-Amieva2, C Patrick Royall3

  • 1Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany.

Physical Review. E
|June 17, 2023
PubMed
Summary

Two interlocked self-propelled dumbbells form a stable spinning pair. Their rotation speed is tunable, but neighboring dumbbell interactions can disrupt this spinning motion.

More Related Videos

Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1
11:22

Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1

Published on: July 11, 2017

8.2K
Initial 3D Cell Cluster Control in a Hybrid Gel Cube Device for Repeatable Pattern Formations
05:22

Initial 3D Cell Cluster Control in a Hybrid Gel Cube Device for Repeatable Pattern Formations

Published on: March 21, 2019

5.8K

Related Experiment Videos

Last Updated: Jul 26, 2025

A Vibrotactile Feedback Device for Seated Balance Assessment and Training
09:13

A Vibrotactile Feedback Device for Seated Balance Assessment and Training

Published on: January 20, 2019

6.4K
Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1
11:22

Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1

Published on: July 11, 2017

8.2K
Initial 3D Cell Cluster Control in a Hybrid Gel Cube Device for Repeatable Pattern Formations
05:22

Initial 3D Cell Cluster Control in a Hybrid Gel Cube Device for Repeatable Pattern Formations

Published on: March 21, 2019

5.8K

Area of Science:

  • Colloidal science
  • Active matter physics
  • Soft matter physics

Background:

  • Quincke rollers are self-propelled particles exhibiting rich collective behaviors.
  • Interlocking geometric structures can lead to novel dynamic states in active matter.

Purpose of the Study:

  • To investigate the formation and stability of two interlocked self-propelled dumbbells.
  • To understand the factors influencing the joint spinning motion of such systems.

Main Methods:

  • Experimental observation of Quincke roller clusters.
  • Computer simulations for dynamic modeling.
  • Stability analysis of the interlocked system.

Main Results:

  • A stable joint spinning motion is achieved for large self-propulsion and significant geometric interlocking.
  • Spinning frequency is tunable via self-propulsion speed, controlled by an external electric field.
  • While stable against thermal fluctuations, hydrodynamic interactions with neighbors cause pair breakup.

Conclusions:

  • Geometrically locked spinning active colloidal molecules exhibit tunable dynamics.
  • Hydrodynamic interactions are critical for the stability of such systems in crowded environments.