As you can observe the picture above that shows the fabric of time is being bended like a piece of paper. This is mostly what’s a wormhole should look like and the concept that’s it is used. Wormholes is a hypothetical topological feature of spacetime that is fundamentally a ‘shortcut’ through space and time. Spacetime can be viewed as a 2D surface (to simplify understanding) that, when ‘folded’ over, allows the formation of a wormhole bridge. A wormhole has at least two mouths that are connected to a single throat or tube. If the wormhole is traversable, then matter can ‘travel’ from one mouth to the other by passing through the throat. While there is no observational evidence for wormholes, spacetimes containing wormholes are known to be valid solutions in general relativity.

The term **wormhole** was coined by the American theoretical physicist John Archibald Wheeler in 1957. However, the idea of wormholes had already been theorized in 1921 by the German mathematician Hermann Weyl in connection with his analysis of mass in terms of electromagnetic field energy.

The basic notion of an intra-universe wormhole is that it is a compact region of spacetime whose boundary is topologically trivial but whose interior is not simply connected. Formalizing this idea leads to definitions such as the following, taken from Matt Visser’s *Lorentzian Wormholes*.

There’s a alternative term for this wormhole is schwarzschild wormholes which is Lorentzian wormholes and also known as Einstein-Rosen bridges, they are

bridges between areas of space that can be modeled as vacuum solutions to theEinstein field equations by combining models of a black hole and a white hole. This solution was discovered by Albert Einstein and his colleague Nathan Rosen, who first published the result in 1935. However, in 1962 John A. Wheeler and Robert W. Fuller published a paper showing that this type of wormhole is unstable, and that it will pinch off instantly as soon as it forms, preventing even light from making it through.

Before the stability problems of Schwarzschild wormholes were apparent, it was proposed that quasars were white holes forming the ends of wormholes of this type.

While Schwarzschild wormholes are not traversable, their existence inspired Kip Thorne to imagine traversable wormholes created by holding the ‘throat’ of a Schwarzschild wormhole open with exotic matter (material that has negative mass/energy).

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