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

Problem-Solving: Tuning of a Guitar String01:04

Problem-Solving: Tuning of a Guitar String

In the case of stringed instruments like the guitar, the elastic property that determines the speed of the sound produced is its linear mass density or the mass per unit length. This is simply called the linear density. If the string's linear density is constant along the string, then the linear density is simply the total mass divided by the total length.
The string's wave speed can be regulated by varying the linear density. Tension is the other property that determines the speed of...
Gravity between Spherical Bodies01:27

Gravity between Spherical Bodies

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...
First Law: Particles in Two-dimensional Equilibrium01:18

First Law: Particles in Two-dimensional Equilibrium

Recall that a particle in equilibrium is one for which the external forces are balanced. Static equilibrium involves objects at rest, and dynamic equilibrium involves objects in motion without acceleration; but it is important to remember that these conditions are relative. For instance, an object may be at rest when viewed from one frame of reference, but that same object would appear to be in motion when viewed by someone moving at a constant velocity.
Newton's first law tells us about the...
Gravitational Potential Energy for Extended Objects01:07

Gravitational Potential Energy for Extended Objects

Consider a system comprising several point masses. The coordinates of the center of mass for this system can be expressed as the summation of the product of each mass and its position vector divided by the total mass:
Gravitational Force01:16

Gravitational Force

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 the...
Simple Pendulum01:10

Simple Pendulum

A simple pendulum consists of a small diameter ball suspended from a string, which has negligible mass but is strong enough to not stretch. In our daily life, pendulums have many uses, such as in clocks, on a swing set, and on a sinker on a fishing line.
The period of a simple pendulum depends on two factors: its length and the acceleration due to gravity. The period is completely independent of any other factors, such as mass or maximum displacement. For small displacements, a pendulum is...

You might also read

Related Articles

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

Sort by
Same author

Analytic Discrete Self-Similar Solutions of Einstein-Klein-Gordon at Large D.

Physical review letters·2026
Same author

Boundary Carrollian Conformal Field Theories and Open Null Strings.

Physical review letters·2025
Same author

Carroll geodesics.

The European physical journal. C, Particles and fields·2024
Same author

Spacetime Structure near Generic Horizons and Soft Hair.

Physical review letters·2020
Same author

Local Quantum Energy Conditions in Non-Lorentz-Invariant Quantum Field Theories.

Physical review letters·2019
Same author

Black Holes in Higher Dimensions.

Living reviews in relativity·2017
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: May 10, 2026

Large-Scale Gravitaxis Assay of Caenorhabditis Dauer Larvae
07:53

Large-Scale Gravitaxis Assay of Caenorhabditis Dauer Larvae

Published on: May 31, 2022

Large-D gravity and low-D strings.

Roberto Emparan1, Daniel Grumiller, Kentaro Tanabe

  • 1Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys 23, E-08010 Barcelona, Spain.

Physical Review Letters
|July 9, 2013
PubMed
Summary
This summary is machine-generated.

In the limit of many dimensions, nonextremal black holes exhibit a universal near-horizon geometry. This finding, related to string theory and critical collapse, suggests an effective string description for large-dimensional black holes.

More Related Videos

Drawing and Hydrophobicity-patterning Long Polydimethylsiloxane Silicone Filaments
07:56

Drawing and Hydrophobicity-patterning Long Polydimethylsiloxane Silicone Filaments

Published on: January 7, 2019

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

Related Experiment Videos

Last Updated: May 10, 2026

Large-Scale Gravitaxis Assay of Caenorhabditis Dauer Larvae
07:53

Large-Scale Gravitaxis Assay of Caenorhabditis Dauer Larvae

Published on: May 31, 2022

Drawing and Hydrophobicity-patterning Long Polydimethylsiloxane Silicone Filaments
07:56

Drawing and Hydrophobicity-patterning Long Polydimethylsiloxane Silicone Filaments

Published on: January 7, 2019

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

Area of Science:

  • Theoretical Physics
  • String Theory
  • General Relativity

Background:

  • Black holes in the limit of a large number of dimensions (large-D) have shown surprising universal properties.
  • Recent studies have identified properties of massless scalars in this large-D limit.

Purpose of the Study:

  • To investigate the universal near-horizon limit of a wide class of nonextremal neutral black holes in the large-D limit.
  • To explore the connection between this limit and string theory.
  • To examine potential applications, including critical collapse.

Main Methods:

  • Analysis of black hole solutions in the limit of a large number of spacetime dimensions.
  • Identification of the limiting near-horizon geometry.
  • Comparison with known string theory black hole solutions.

Main Results:

  • A universal near-horizon limit was found for a broad class of nonextremal neutral black holes in the large-D limit.
  • The limiting geometry is identified as the two-dimensional black hole of string theory.
  • For black branes with string charges, the near-horizon geometry corresponds to three-dimensional black strings.
  • Analogies between the alpha' expansion in string theory and the large-D expansion in gravity were highlighted.

Conclusions:

  • The conformal symmetry of the limiting two-dimensional geometry explains the behavior of massless scalars in the large-D limit.
  • The findings suggest a possible effective string description for large-D black holes.
  • The study has implications for understanding critical collapse phenomena.