Worm Holes

In physics and fiction, a wormhole is a hypothetical topological feature of spacetime that would be, fundamentally, a 'shortcut' through space and time; although they are very popular in science fiction, there is no actual evidence that they exist. For a simple visual explanation of a wormhole, consider spacetime visualized as a two-dimensional (2-D) surface (see illustration, right). Now, if we 'fold' this surface along a (non-existant) 3rd dimension, it allows us to picture a wormhole 'bridge'. (Please note, though, that this image is merely a visualization, to allow the limited human brain to grasp an essentially unimaginable structure existing in 4 or more dimensions.) A wormhole has at least two 'mouths' that are connected via a 'throat', or tube. If the wormhole is traversable, then matter can 'travel' from one mouth to the other via the throat.

There is no observational evidence for wormholes, and, although wormholes are valid solutions in general relativity, this is only true if exotic matter can be used to stabilize them. Even if the wormhole is stabilized, the slightest fluctuation in space would collapse it. If such exotic matter — that is, matter with negative mass — does not exist, all wormhole-containing solutions to Einsteins field equations are vacuum solutions, which require an impossible vacuum, free of all matter and energy. There is no evidence or experimental suggestion that wormholes do exist, except as predictions of certain (exotic) physical models. Wormholes allowed by current physical theories might arise spontaneously, but would vanish nearly instantaneously, and would likely be undetectable.

The American theoretical physicist John Archibald Wheeler coined the term wormhole in 1957; however, in 1921, the German mathematician Hermann Weyl already had proposed the wormhole theory, in connection with mass analysis of electromagnetic field energy.[1]

This analysis forces one to consider situations . . . where there is a net flux of lines of force, through what topologists would call a handle of the multiply-connected space, and what physicists might perhaps be excused for more vividly terming a wormhole

Category:

Science & Technology

Tags:

• Albert
• Einstein
• wormholes
• worm
• hole
• cosmic
• universe
• space
• general
• relativity

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