Who discovered wormholes?

The original idea of a wormhole came from physicists Albert Einstein and Nathan Rosen. They studied the strange equations that we now know describe that unescapable pocket of space we call a black hole and asked what they really represented.

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Subsequently, what is a white black hole?

Physicists describe a white hole as a black hole's "time reversal," a video of a black hole played backwards, much as a bouncing ball is the time reversal of a falling ball. Could a black hole be a wormhole? Over the years scientists have looked into the possibility that black holes could be wormholes to other galaxies. They may even be, as some have suggested, a path to another universe. But it doesn't seem likely that wormholes exist.

Also, can you travel back in time?

Time travel is theoretically possible, new calculations show. Time travel is possible based on the laws of physics, according to new calculations from researchers at the University of Queensland. But time-travelers wouldn't be able to alter the past in a measurable way, they say - the future would stay the same. How many dimensions are there? The world as we know it has three dimensions of space-length, width and depth-and one dimension of time.

Subsequently, can you survive a black hole?

You would most likely not survive either a small or a large black hole. Remember, light cannot even escape a black hole?that is why it is called a black hole. In your eyes, as the one who is falling into the black hole, you would experience time normally. Additionally, once you reach the event horizon, you may survive.