Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Detection of Black Holes01:10

Detection of Black Holes

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...
Schwarzschild Radius and Event Horizon01:21

Schwarzschild Radius and Event Horizon

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 velocity with the...
Free Jet01:14

Free Jet

Free jets describe the flow of liquid exiting a reservoir through an opening into the atmosphere without resistance. The velocity (v) of the liquid jet is derived using Bernoulli's principle and expressed as:
Gravitation Between Spherically Symmetric Masses01:14

Gravitation Between Spherically Symmetric Masses

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.
Rocket Propulsion in Gravitational Field - II01:03

Rocket Propulsion in Gravitational Field - II

A rocket's velocity in the presence of a gravitational field is decreased by the amount of force exerted by Earth's gravitational field, which opposes the motion of the rocket. If we consider thrust, that is, the force exerted on a rocket by the exhaust gases, then a rocket's thrust is greater in outer space than in the atmosphere or on a launch pad. In fact, gases are easier to expel in a vacuum.
A rocket's acceleration depends on three major factors, consistent with the equation for the...
Dual Nature of Electromagnetic (EM) Radiation01:10

Dual Nature of Electromagnetic (EM) Radiation

Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Emergent Turbulence in Nonlinear Gravity.

Physical review letters·2026
Same author

Curvature Dependence of Gravitational-Wave Tests of General Relativity.

Physical review letters·2025
Same author

Self-Consistent Modeling of Gravitational Theories beyond General Relativity.

Physical review letters·2023
Same author

No Evidence of Kinetic Screening in Simulations of Merging Binary Neutron Stars beyond General Relativity.

Physical review letters·2022
Same author

Dynamics of Screening in Modified Gravity.

Physical review letters·2021
Same author

Critical Collapse of a Scalar Field in Semiclassical Loop Quantum Gravity.

Physical review letters·2020
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
查看所有相关文章

相关实验视频

Updated: Jun 10, 2026

Cryogenic Liquid Jets for High Repetition Rate Discovery Science
08:34

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

来自二进制黑洞的双射流.

Carlos Palenzuela1, Luis Lehner, Steven L Liebling

  • 1Canadian Institute for Theoretical Astrophysics, Toronto, Ontario M5S 3H8, Canada.

Science (New York, N.Y.)
|August 21, 2010
PubMed
概括
此摘要是机器生成的。

超大质量黑洞的合并通过通过磁场提取能量来产生强大的喷气. 这些喷射是由轨道上的黑洞驱动的,可能会产生来自遥远星系的可观测的辐射.

更多相关视频

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow
13:02

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

Published on: February 27, 2016

Visualization of High Speed Liquid Jet Impaction on a Moving Surface
08:34

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Published on: April 17, 2015

相关实验视频

Last Updated: Jun 10, 2026

Cryogenic Liquid Jets for High Repetition Rate Discovery Science
08:34

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow
13:02

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

Published on: February 27, 2016

Visualization of High Speed Liquid Jet Impaction on a Moving Surface
08:34

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Published on: April 17, 2015

科学领域:

  • 天体物理学 天体物理学
  • 一般相对论一般相对论.
  • 等离子体物理学的物理学

背景情况:

  • 星系的合并自然会导致超大质量黑洞 (SMBH) 凝聚.
  • 预计SMBH合并将产生引力波和能量电磁事件.
  • 理论上,圆二进制盘围绕着合并的SMBH,产生磁场.

研究的目的:

  • 调查与SMBH二进制凝聚相关的电磁现象.
  • 为了探索来自环双磁盘的外部磁场在SMBH合并中的作用.
  • 展示SMBH二进制凝聚过程中喷气形成的数值证据.

主要方法:

  • 解决爱因斯坦方程以建模黑洞与等离子体相互作用.
  • 在外部磁场中模拟二进制黑洞的凝聚.
  • 将布兰德福德-兹纳杰克机制扩展到二进制黑洞系统.

主要成果:

  • 数字证据表明,合并SMBH二进制文件可以驱动强大的喷气式飞机.
  • 外界磁场从轨道上的黑洞中提取能量.
  • 这个过程导致了一个合并的黑洞系统,与布兰德福德-兹纳杰克情景相一致.

结论:

  • 在磁化环境中的SMBH二进制合并可以发射可观测的喷气.
  • 这些喷气提供了一个潜在的通道来检测来自黑洞合并的遥远电磁信号.
  • 该研究为了解SMBH系统中的能量提取和喷气形成提供了理论框架.