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Related Concept Videos

The Hall Effect01:30

The Hall Effect

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.
Equilibrium and Balance01:15

Equilibrium and Balance

The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
Rigid Body Equilibrium Problems - II01:21

Rigid Body Equilibrium Problems - II

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?
Apparent Weight01:09

Apparent Weight

True weight is the measure of the gravitational force acting on an object. However, if the object accelerates, its measured weight is different from its true weight. Similar observations can be made when the object is submerged in water. An object's weight in water is its apparent weight, which is equal to the difference between its true weight and the buoyant forces.
Consider a person standing on a bathroom scale inside an elevator. If the scale is accurate at rest, its reading equals the...
Static Equilibrium - II01:07

Static Equilibrium - II

Static equilibrium is a special case in mechanics that is very important in everyday life. It occurs when the net force and the net torque on an object or system are both zero. This means that both the linear and angular accelerations are zero. Thus, the object is at rest, or its center of mass is moving at a constant velocity. However, this does not mean that no forces are acting on the object within the system. In fact, there are very few scenarios on Earth in which no forces are acting upon...
Physical Pendulum01:06

Physical Pendulum

When a rigid body is hanging freely from a fixed pivot point and is displaced, it oscillates similar to a simple pendulum and is known as a physical pendulum. The period and angular frequency of a physical pendulum are obtained by using the small-angle approximation and drawing parallels with a spring-mass system. The small-angle approximation (sinθ=θ) is valid up to about 14°.
When dealing with complicated systems, the mass moment of inertia is an important parameter, as it describes the mass...

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Related Experiment Video

Updated: May 10, 2026

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

Extraordinary hall balance.

S L Zhang1, Y Liu, L J Collins-McIntyre

  • 1Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China.

Scientific Reports
|June 28, 2013
PubMed
Summary
This summary is machine-generated.

Researchers developed a new device using the extraordinary Hall effect (EHB) to achieve over 31,000% magnetoresistance at room temperature. This breakthrough offers a significant advancement for future magnetic storage and logic devices.

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Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
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Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

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Last Updated: May 10, 2026

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

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
07:52

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

Published on: September 18, 2020

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Electrical Engineering

Background:

  • Magnetoresistance (MR) effects are crucial for information technology.
  • Current giant and tunnelling MR devices have limited room-temperature MR ratios (~200%).
  • Colossal MR materials require low temperatures and high magnetic fields for high MR ratios.

Purpose of the Study:

  • To introduce a novel device concept for enhanced magnetoresistance.
  • To demonstrate high room-temperature MR ratios exceeding current limitations.
  • To enable reprogrammable logic and memory applications.

Main Methods:

  • Exploitation of the extraordinary Hall effect (EHE).
  • Utilisation of two separated ferromagnetic layers with perpendicular anisotropy.
  • Configuration of Hall voltages for balancing or imbalance.

Main Results:

  • Demonstration of room-temperature MR ratios exceeding 31,000%.
  • Successful implementation of a single EHB element for reprogrammable logic and memory.
  • Overcoming the limitations of existing MR technologies.

Conclusions:

  • The extraordinary Hall balance (EHB) offers a significant leap in magnetoresistance performance.
  • EHB devices provide a pathway for next-generation, high-performance, room-temperature data storage and logic.
  • This technology has the potential to revolutionize information technology applications.