相关实验视频

Updated: Jul 8, 2025

C. elegans Tracking and Behavioral Measurement
07:36

C. elegans Tracking and Behavioral Measurement

Published on: November 17, 2012

19.1K

通过使用一些可行的形状函数来研究虫洞在f(Q,T) 重力中的解决方案

Rabia Saleem1, Shokaib Shahid1, Sobia Sadiq2

  • 1Department of Mathematics, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.

Heliyon
|December 11, 2023
PubMed
概括

研究人员在修改引力下探索可穿越的虫洞,发现违反零能量条件 (NEC) 表明它们的存在. 这些发现对于非度性标量理论中的特定参数值是可行的.

关键词:
能源条件 能源条件改变了重力,改变了重力.虫洞 虫洞就是一个问题.

更多相关视频

Preparation of Free-Surface Hyperbolic Water Vortices04:35

Preparation of Free-Surface Hyperbolic Water Vortices

Published on: July 28, 2023

2.6K
Single Wavelength Shadow Imaging of Caenorhabditis elegans Locomotion Including Force Estimates08:41

Single Wavelength Shadow Imaging of Caenorhabditis elegans Locomotion Including Force Estimates

Published on: April 18, 2014

9.2K

相关概念视频

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.
908
Space-Time Curvature and the General Theory of Relativity01:17

Space-Time Curvature and the General Theory of Relativity

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...
2.7K
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...
2.2K
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...
2.0K
The Principle of Superposition and the Gravitational Field01:17

The Principle of Superposition and the Gravitational Field

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...
1.3K
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...
8.5K