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

Gravity between Spherical Bodies01:27

Gravity between Spherical Bodies

8.6K
Newton's law of gravitation describes the gravitational force between any two point masses. However, for extended spherical objects like the Earth, the Moon, and other planets, the law holds with an assumption that masses of spherical objects are concentrated at their respective centers.
This assumption can be proved easily by showing that the expression for gravitational potential energy between a hollow sphere of mass (M) and a point mass (m) is the same as it would be for a pair of extended...
8.6K
Tidal Forces01:06

Tidal Forces

2.6K
The origin of Earth's ocean tides has been a subject of continuous investigation for over 2000 years. However, the work of Newton is considered to be the beginning of the proper understanding of the phenomenon. Ocean tides are the result of gravitational tidal forces. These same tidal forces are present in any astronomical body; they are responsible for the internal heat that creates the volcanic activity on Io, one of Jupiter's moons, and the breakup of stars that get too close to...
2.6K
Newton's Law of Gravitational Attraction01:24

Newton's Law of Gravitational Attraction

609
Sir Isaac Newton established the universality of the law of gravitational attraction based on empirical evidence and inductive reasoning. He published his work in Philosophiae Naturalis Principia Mathematica ("the Principia") on July 5, 1687.
Newton's law of gravitational attraction is a fundamental law of physics that governs the attraction between objects. It states that the magnitude of the gravitational force between any two objects is proportional to their masses and inversely...
609
Newton's Law of Gravitation01:15

Newton's Law of Gravitation

12.9K
Our everyday observation tells us that all objects close to the Earth naturally tend to fall to the ground. Early philosophers assumed that this downward force was unique to Earth. By the 16th century, Nicolaus Copernicus (1473-1543) put forward the heliocentric theory, which suggested that Earth and other planets orbited the sun, while the Moon orbited the Earth. However, it was Isaac Newton (1642-1727) who linked these two motions together in the 17th century. He reasoned that the force of...
12.9K
Gravitation01:16

Gravitation

6.5K
In the years before Newton, a general belief prevailed that different laws governed objects in the sky than objects on Earth. When Kepler wrote down the three laws of planetary motion, explaining in detail the geometrical properties of the planetary orbits around the Sun, there was no immediate idea to discern their connection with more fundamental laws. It was Isaac Newton who, in 1665–66, figured out the connection between planetary motion, the motion of the moon around the Earth, and...
6.5K
Comparison Between Electrical And Gravitational Forces01:24

Comparison Between Electrical And Gravitational Forces

2.8K
There are four fundamental forces in nature: the gravitational force, the electromagnetic force, the strong nuclear force, and the weak nuclear force. To compare the numerical strengths of the first two, take two particles of the same kind. Since electrons are fundamental particles, they are a good example.
Since both are inverse square law forces, the distance gets canceled when the ratio of the two forces is considered. Instead, the ratio of the electrical and gravitational forces depends on...
2.8K

You might also read

Related Articles

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

Sort by
Same author

Applications of silicon carbide as window materials in atomic cells and atomic devices.

The Review of scientific instruments·2026
Same author

<sup>81</sup>Kr dating of 1 kg Antarctic ice.

Nature communications·2025
Same author

Efficacy of erector spinae nerve block for pain control after lumbar spinal surgeries: a systematic review and meta-analysis.

European review for medical and pharmacological sciences·2023
Same author

Signal-processing electronics for stable and sensitive weak-field atomic vector magnetometers.

The Review of scientific instruments·2023
Same author

Residence times of groundwater along a flow path in the Great Artesian Basin determined by <sup>81</sup>Kr, <sup>36</sup>Cl and <sup>4</sup>He: Implications for palaeo hydrogeology.

The Science of the total environment·2022
Same author

Measurement of the Electric Dipole Moment of ^{171}Yb Atoms in an Optical Dipole Trap.

Physical review letters·2022

Related Experiment Video

Updated: Jul 28, 2025

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System
09:44

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System

Published on: June 5, 2014

12.8K

Search for Spin-Dependent Gravitational Interactions at Earth Range.

S-B Zhang1, Z-L Ba1, D-H Ning1

  • 1CAS Center for Excellence in Quantum Information and Quantum Physics, School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China.

Physical Review Letters
|June 2, 2023
PubMed
Summary

This study tested gravity

More Related Videos

Measuring Interactions of Globular and Filamentous Proteins by Nuclear Magnetic Resonance Spectroscopy NMR and Microscale Thermophoresis MST
10:28

Measuring Interactions of Globular and Filamentous Proteins by Nuclear Magnetic Resonance Spectroscopy NMR and Microscale Thermophoresis MST

Published on: November 2, 2018

12.2K
Demonstrating the Uses of the Novel Gravitational Force Spectrometer to Stretch and Measure Fibrous Proteins
13:51

Demonstrating the Uses of the Novel Gravitational Force Spectrometer to Stretch and Measure Fibrous Proteins

Published on: March 19, 2011

10.4K

Related Experiment Videos

Last Updated: Jul 28, 2025

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System
09:44

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System

Published on: June 5, 2014

12.8K
Measuring Interactions of Globular and Filamentous Proteins by Nuclear Magnetic Resonance Spectroscopy NMR and Microscale Thermophoresis MST
10:28

Measuring Interactions of Globular and Filamentous Proteins by Nuclear Magnetic Resonance Spectroscopy NMR and Microscale Thermophoresis MST

Published on: November 2, 2018

12.2K
Demonstrating the Uses of the Novel Gravitational Force Spectrometer to Stretch and Measure Fibrous Proteins
13:51

Demonstrating the Uses of the Novel Gravitational Force Spectrometer to Stretch and Measure Fibrous Proteins

Published on: March 19, 2011

10.4K

Area of Science:

  • Fundamental Physics
  • Gravitational Physics
  • Particle Physics

Background:

  • General relativity states gravity does not couple to particle spins.
  • Testing this principle is crucial for understanding fundamental interactions.
  • Previous experiments have not reached the required precision to test this coupling.

Purpose of the Study:

  • To search for anomalous scalar coupling between neutron spins and Earth's gravity.
  • To set new upper limits on the neutron spin-gravity coupling energy.
  • To constrain axion-mediated monopole-dipole interactions.

Main Methods:

  • Development of a high-precision atomic gas comagnetometer.
  • Measurement of nuclear spin-precession frequency ratios between Xenon-129 and Xenon-131.
  • Systematic sensor flipping in Earth's gravitational field to detect anomalous couplings.

Main Results:

  • Null results for anomalous scalar coupling between neutron spin and gravity.
  • Established a new upper limit for neutron spin-gravity coupling energy at 5.3×10⁻²² eV (95% confidence level).
  • Achieved a 17-fold improvement over previous experimental limits.

Conclusions:

  • The findings place stringent constraints on potential deviations from general relativity.
  • The improved limits significantly constrain theories beyond the Standard Model, such as those involving axions.
  • The experiment demonstrates the power of atomic comagnetometers for probing fundamental physics.