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Stephen Hawking talks about observing Singularity by giving example of Astronaut who falls in a blackhole... If you have read Brief History of Time, chapter of Black Hole... please tell me what does he mean by this...

"There are some solutions of the equations of general relativity in which it is possible for our astronaut to see a naked
singularity: he may be able to avoid hitting the singularity and instead fall through a "wormhole” and come out in another
region of the universe."

2007-05-21 19:32:52 · 5 answers · asked by Honest christian 2 in Society & Culture Religion & Spirituality

5 answers

A gravitational singularity (sometimes spacetime singularity) is, approximately, a place where quantities which are used to measure the gravitational field become infinite. Such quantities include the curvature of spacetime or the density of matter. More accurately, a spacetime with a singularity contains geodesics which cannot be completed in a smooth manner. The limit of such a geodesic is the singularity.

The two most important types of spacetime singularities are curvature singularities and conical singularities. Singularities can also be divided according to whether they are covered by an event horizon or not (naked singularities). According to general relativity the initial state of the universe, at the beginning of the Big Bang, was a singularity, or single point. Another type of singularity predicted by general relativity is inside a black hole: any star collapsing beyond a certain point would form a black hole, inside which a singularity (covered by an event horizon) would be formed, as all the matter would flow into a certain point (or a circular line, if the black hole is rotating). These singularities are curvature singularities.

2007-05-21 19:40:55 · answer #1 · answered by AuroraDawn 7 · 3 0

Are you REALLY asking for an explanation of the theory of relativity and quantum physics in a paragraph? Try enrolling in Physics in the nearest university, you will get a good answer in about 4-6 years.
In summation, he meant that the astronaut may be able to actually avoid the dense gravitational field and fall through the hole.

2007-05-21 19:41:14 · answer #2 · answered by Momofthreeboys 7 · 0 1

Dude, that's way over my head. I wish I could help you.

2007-05-21 19:42:25 · answer #3 · answered by Anonymous · 0 0

Let's pray about it and see.

2007-05-21 19:39:07 · answer #4 · answered by Shinigami 7 · 0 1

in the words of mencia ... "dee-dee-dee"

2007-05-21 20:01:19 · answer #5 · answered by bigdee_x 4 · 0 0

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