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

Center of Gravity00:58

Center of Gravity

6.7K
The center of gravity (COG) of an object is the point where the object's total weight is considered to be concentrated. Knowing the location of the center of gravity is useful when predicting the behavior of a moving object or designing static structures. In a uniform gravitational field, the center of gravity is similar to the center of mass (COM); yet, these two points can be positioned differently. For example, the Moon's center of mass lies very close to its geometric center, but...
6.7K
Center of Gravity01:15

Center of Gravity

2.1K
The center of gravity is the point at which an object's weight appears to be concentrated and can be used to balance the object perfectly. This point is essential in mechanics as it provides information regarding a body's stability and moments of inertia. The center of gravity does not always have to fall within the shape or boundaries of the body; it may also lie outside the body in certain cases.
To determine its location, the principle of moments can be utilized by dividing the object into...
2.1K
Responses to Gravity and Touch02:26

Responses to Gravity and Touch

41.9K
Gravitropism: Plant Responses to Gravity
41.9K
Acceleration due to Gravity on Other Planets01:24

Acceleration due to Gravity on Other Planets

4.9K
The gravitational acceleration of an object near the Earth's surface is called the acceleration due to gravity. It can be measured by conducting simple experiments on Earth. However, such an experiment is impossible to conduct on the surface of other planets.
Astronomical observations are thus used to measure the acceleration due to gravity on other planets. This can be determined by observing the effect of a planet's gravity on objects close to it. The crucial factor that helps in this...
4.9K
Work Done by Gravity01:04

Work Done by Gravity

8.7K
Gravitation is one of the four fundamental forces in nature. The force between objects on Earth and Earth itself is called gravity.
Like other forces, gravity does work on an object if it displaces it toward the Earth's center. In this case, the work done by gravity is said to be positive. If an external force acts on the object against the pull of gravity and manages to lift it away from the Earth's center, work is done against gravity. In this case, the net work done is said to be...
8.7K
Specific Gravity of Aggregate01:19

Specific Gravity of Aggregate

810
Aggregates typically contain pores, which can be either permeable or impermeable. Considering the pores in the aggregates, the specific gravity of aggregates is defined in three different forms, namely, bulk or gross specific gravity, apparent specific gravity, and absolute specific gravity.
Bulk or gross specific gravity is calculated by taking the ratio of the mass of aggregates in the saturated surface-dry state to the total volume that includes both the solids and the voids within the...
810

You might also read

Related Articles

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

Sort by
Same author

The Galactic Center as a laboratory for theories of gravity and dark matter.

Reports on progress in physics. Physical Society (Great Britain)·2023
Same author

New futures for cosmological models.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2022
Same author

Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole.

Physical review letters·2020
Same author

<i>f</i>(<i>R</i>) gravity modifications: from the action to the data.

The European physical journal. C, Particles and fields·2018
Same author

Forecast and analysis of the cosmological redshift drift.

The European physical journal. C, Particles and fields·2018
Same author

Recognizing Axionic Dark Matter by Compton and de Broglie Scale Modulation of Pulsar Timing.

Physical review letters·2017
Same journal

Quantitative understanding of PDF fits and their uncertainties.

The European physical journal. C, Particles and fields·2026
Same journal

Probing the Higgs portal to a strongly-interacting dark sector at the FCC-ee.

The European physical journal. C, Particles and fields·2026
Same journal

Quantifying vacuum-like jets in heavy-ion collisions: a machine learning study.

The European physical journal. C, Particles and fields·2026
Same journal

High-energy decays and weak quantum measurements.

The European physical journal. C, Particles and fields·2026
Same journal

Combined effective field theory interpretation of Higgs boson, electroweak vector boson, top quark, and multijet measurements.

The European physical journal. C, Particles and fields·2026
Same journal

A journey to ITACA: Ion Tracking with Ammonium Cations Apparatus.

The European physical journal. C, Particles and fields·2026
See all related articles

Related Experiment Video

Updated: Jan 27, 2026

3D Orbital Tracking in a Modified Two-photon Microscope: An Application to the Tracking of Intracellular Vesicles
11:28

3D Orbital Tracking in a Modified Two-photon Microscope: An Application to the Tracking of Intracellular Vesicles

Published on: October 1, 2014

10.7K

Modified gravity revealed along geodesic tracks.

Mariafelicia De Laurentis1,2,3,4, Ivan De Martino5, Ruth Lazkoz6

  • 11Dipartimento di Fisica "E. Pancini", Universitá di Napoli "Federico II", Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, 80126 Naples Italy.

The European Physical Journal. C, Particles and Fields
|March 19, 2019
PubMed
Summary
This summary is machine-generated.

Investigating two-body systems in modified gravity reveals key differences between semiclassical and relativistic approaches. Relativistic methods are crucial for probing f(R) gravity and distinguishing it from general relativity.

More Related Videos

Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
04:01

Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics

Published on: March 15, 2024

1.9K
Revealing Neural Circuit Topography in Multi-Color
09:11

Revealing Neural Circuit Topography in Multi-Color

Published on: November 14, 2011

15.5K

Related Experiment Videos

Last Updated: Jan 27, 2026

3D Orbital Tracking in a Modified Two-photon Microscope: An Application to the Tracking of Intracellular Vesicles
11:28

3D Orbital Tracking in a Modified Two-photon Microscope: An Application to the Tracking of Intracellular Vesicles

Published on: October 1, 2014

10.7K
Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
04:01

Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics

Published on: March 15, 2024

1.9K
Revealing Neural Circuit Topography in Multi-Color
09:11

Revealing Neural Circuit Topography in Multi-Color

Published on: November 14, 2011

15.5K

Area of Science:

  • Cosmology and Astrophysics
  • Theoretical Physics
  • Modified Gravity Theories

Background:

  • Studying two-body system dynamics in modified gravity is more complex than in Newtonian gravity.
  • Numerical methods are often required to solve geodesic equations in these theories.

Purpose of the Study:

  • To explore the dynamics of a two-body system within f(R) modified gravity.
  • To identify effective strategies for probing modified gravity theories.
  • To compare semiclassical (Newtonian) and relativistic (geodesic) approaches.

Main Methods:

  • Solving geodesic equations numerically to analyze two-body system dynamics.
  • Comparing predictions from semiclassical and relativistic frameworks.
  • Analyzing the potential of future observations to test modified gravity.

Main Results:

  • Significant differences were found between the semiclassical and relativistic approaches.
  • The relativistic (geodesic) method is suggested as the optimal strategy for testing modified gravity.
  • f(R) gravity shows distinct characteristics compared to standard general relativity.

Conclusions:

  • The relativistic geodesic approach offers a promising avenue for empirical verification of modified gravity.
  • Future observations are expected to either confirm deviations from general relativity or constrain f(R) gravity parameters.
  • This study provides a strategic direction for experimental tests of alternative gravity theories.