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

Maxwell's Thermodynamic Relations01:23

Maxwell's Thermodynamic Relations

4.0K
Maxwell's thermodynamic relations are very useful in solving problems in thermodynamics. Each of Maxwell's relations relates a partial differential between quantities that can be hard to measure experimentally to a partial differential between quantities that can be easily measured. These relations are a set of equations derivable from the symmetry of the second derivatives and the thermodynamic potentials.
All thermodynamic potentials are exact differentials. Therefore, their second-order...
4.0K
Equations of Wave Motion01:02

Equations of Wave Motion

6.8K
Mathematically, the motion of a wave can be studied using a wavefunction. Consider a string oscillating up and down in simple harmonic motion, having a period T. The wave on the string is sinusoidal and is translated in the positive x-direction as time progresses. Sine is a function of the angle θ, oscillating between +A and −A and repeating every 2π radians. To construct a wave model, the ratio of the angle θ and the position x is considered.
6.8K
Simple Harmonic Motion and Uniform Circular Motion01:42

Simple Harmonic Motion and Uniform Circular Motion

5.1K
While simple harmonic motion and uniform circular motion may be two separate concepts, they correlate and interlink with each other. Simple harmonic motion is an oscillatory motion in a system where the net force can be described by Hooke's law, while uniform circular motion is the motion of an object in a circular path at constant speed.
There is an easy way to produce simple harmonic motion by using uniform circular motion. For instance, consider a ball attached to a uniformly rotating...
5.1K
Scaling01:26

Scaling

436
In designing and analyzing filters, resonant circuits, or circuit analysis at large, working with standard element values like 1 ohm, 1 henry, or 1 farad can be convenient before scaling these values to more realistic figures. This approach is widely utilized by not employing realistic element values in numerous examples and problems; it simplifies mastering circuit analysis through convenient component values. The complexity of calculations is thereby reduced, with the understanding that...
436
Electromagnetic Wave Equation01:24

Electromagnetic Wave Equation

1.9K
Maxwell's equations for electromagnetic fields are related to source charges, either static or moving. These fields act on a test charge, whose trajectory can thus be determined using suitable boundary conditions. The objective of electromagnetism is thus theoretically complete.
However, although electric and magnetic fields were first introduced as mathematical constructs to simplify the description of mutual forces between charges, a natural question emerges from Maxwell's equations:...
1.9K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

55.4K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
55.4K

You might also read

Related Articles

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

Sort by
Same author

A glimpse into the CyberKnife robotic radiosurgery system: technical specifications and developments during thirty years.

Frontiers in oncology·2026
Same author

The quality and reliability of short videos about liver transplantation and lung transplantation on BiliBili and TikTok: cross-sectional study.

Scientific reports·2026
Same author

Correction: Quality of life reported by patients with ecchymosis following total knee arthroplasty.

Frontiers in surgery·2026
Same author

Cyclist behavioral persistence across consecutive intersections: Re-ID based analysis and intention prediction.

Accident; analysis and prevention·2026
Same author

"Opening The Orifices And Alleviating Throat Obstruction" Four-step Acupuncture Method Combined with Motor Imagery Therapy for Post-Stroke Dysphagia.

Journal of visualized experiments : JoVE·2026
Same author

Interleukin-19 ameliorates drug-induced liver injury by limiting proinflammatory macrophage infiltration via SUMOylation of C/EBPβ.

Journal of hepatology·2026

Related Experiment Video

Updated: Dec 3, 2025

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

8.9K

Extended harmonic mapping connects the equations in classical, statistical, fluid, quantum physics and general

Xiaobo Zhai1,2, Changyu Huang1, Gang Ren3

  • 1The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA.

Scientific Reports
|October 27, 2020
PubMed
Summary

A universal geodesic equation connects over ten fundamental physics equations, from classical mechanics to general relativity. This discovery reveals an alternative ultimate rule of the universe based on the principle of least action.

More Related Videos

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.5K
Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
11:00

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section

Published on: July 19, 2016

11.9K

Related Experiment Videos

Last Updated: Dec 3, 2025

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

8.9K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.5K
Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
11:00

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section

Published on: July 19, 2016

11.9K

Area of Science:

  • Theoretical Physics
  • Mathematical Physics
  • Unified Field Theories

Background:

  • The search for a unified theory of physics necessitates finding connections between fundamental equations.
  • Extended harmonic mapping (EHM) has recently been proposed to link general relativity, chaos, and quantum mechanics via a universal geodesic equation.

Purpose of the Study:

  • To demonstrate that a single universal geodesic equation can connect a broader range of fundamental physics equations.
  • To explore the implications of these connections for an ultimate rule governing the universe.

Main Methods:

  • Utilizing the principle of least action to derive a universal geodesic equation.
  • Applying Euler-Lagrange equations on a Riemannian manifold.
  • Extending the analysis to encompass classical mechanics, fluid physics, statistical physics, astrophysics, quantum physics, and general relativity.

Main Results:

  • Over ten fundamental physics equations, including those from classical mechanics, fluid dynamics, statistical physics, astrophysics, quantum mechanics, and general relativity, are shown to be connected by the same universal geodesic equation.
  • The interconnectedness of these equations forms a 'family tree' of physics.

Conclusions:

  • The principle of least action, applied on a Finsler manifold, offers an alternative perspective on an ultimate rule governing the universe.
  • The universal geodesic equation provides a unifying framework for diverse areas of physics.