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

Schwarzschild Radius and Event Horizon01:21

Schwarzschild Radius and Event Horizon

2.9K
No object with a finite mass can travel faster than the speed of light in a vacuum. This fact has an interesting consequence in the domain of extremely high gravitational fields.
The minimum speed required to launch a projectile from the surface of an object to which it is gravitationally bound so that it eventually escapes the object’s gravitational field is called the escape velocity. The escape velocity is independent of the mass of the object. Merging the idea of escape...
2.9K
Detection of Black Holes01:10

Detection of Black Holes

2.6K
Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s.
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...
2.6K
Gravitation Between Spherically Symmetric Masses01:14

Gravitation Between Spherically Symmetric Masses

1.4K
The gravitational potential energy between two spherically symmetric bodies can be calculated from the masses and the distance between the bodies, assuming that the center of mass is concentrated at the respective centers of the bodies.
1.4K
Gravity between Spherical Bodies01:27

Gravity between Spherical Bodies

9.6K
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...
9.6K
Space-Time Curvature and the General Theory of Relativity01:17

Space-Time Curvature and the General Theory of Relativity

4.8K
In 1905, Albert Einstein published his special theory of relativity. According to this theory, no matter in the universe can attain a speed greater than the speed of light in a vacuum, which thus serves as the speed limit of the universe.
This has been verified in many experiments. However, space and time are no longer absolute. Two observers moving relative to one another do not agree on the length of objects or the passage of time. The mechanics of objects based on Newton's laws of...
4.8K
The Principle of Superposition and the Gravitational Field01:17

The Principle of Superposition and the Gravitational Field

2.2K
The principle of superposition applies to gravitational forces of objects that are sufficiently far apart. It states that the net gravitational force on a point object is the vector sum of the gravitational forces on it due to various objects. The principle helps calculate the force by listing the individual forces and then vectorially summing them up. However, it should be noted that the principle of superposition is not always apparent. In the presence of a second force, the first force could...
2.2K

You might also read

Related Articles

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

Sort by
Same author

Purification and structural characterization of the tularemia membrane protein virulence factors CapB and CapC.

Biochimica et biophysica acta. Biomembranes·2026
Same author

Laboratory three-dimensional X-ray micro-beam Laue diffraction.

Journal of applied crystallography·2025
Same author

A queen's tale: An experimental palaeoproteomic study of a honey bee queen cell specimen from Natural History Museum Denmark.

Open research Europe·2025
Same author

Human lymph node microvascular imaging using a fast contrast-free super-resolution ultrasound technique.

Scientific reports·2025
Same author

Wolf cranial morphology tracks population replacement in Fennoscandia.

Royal Society open science·2025
Same author

A small molecule cryptotanshinone induces non-enzymatic NQO1-dependent necrosis in cancer cells through the JNK1/2/Iron/PARP/calcium pathway.

Acta pharmaceutica Sinica. B·2025

Related Experiment Video

Updated: Mar 7, 2026

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

13.5K

Critical Phenomena in Gravitational Collapse.

Carsten Gundlach1, José M Martín-García2,3

  • 1School of Mathematics, University of Southampton, Southampton, SO17 1BJ UK.

Living Reviews in Relativity
|February 10, 2017
PubMed
Summary

Critical phenomena in general relativity reveal universal power-law scaling and self-similar solutions at the black hole threshold. These findings offer insights into cosmic censorship and quantum gravity.

More Related Videos

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions
08:49

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions

Published on: February 17, 2019

7.1K
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

9.1K

Related Experiment Videos

Last Updated: Mar 7, 2026

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

13.5K
Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions
08:49

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions

Published on: February 17, 2019

7.1K
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

9.1K

Area of Science:

  • Theoretical Physics
  • General Relativity
  • Black Hole Physics

Background:

  • The study of black hole formation in general relativity has revealed a complex threshold in initial data.
  • Key phenomena observed include universality, power-law scaling of black hole mass, and scale echoing, collectively termed 'critical phenomena'.

Purpose of the Study:

  • To explain the observed critical phenomena at the black hole threshold.
  • To elucidate the role of universal, self-similar attractors in the dynamics of black hole formation.

Main Methods:

  • Analysis of the structure of the black hole threshold in the space of initial data.
  • Identification of exact, self-similar solutions acting as attractors within this threshold.

Main Results:

  • The existence of codimension-one attractors, which are typically self-similar, explains the universality and power-law scaling observed.
  • These attractors provide a natural pathway from smooth initial conditions to highly curved spacetimes.

Conclusions:

  • Critical phenomena offer a simplified yet structured understanding of black hole formation.
  • These findings have significant implications for cosmic censorship, quantum gravity, astrophysics, and the fundamental dynamics of general relativity.