duminică, 25 mai 2008
What is a parallel universe?
The parallel universe theory, first proposed in 1950 by US physicist Hugh Everett, helps explain mysteries of quantum mechanics that have baffled scientists for decades.
According to this theory, every time a new physical possibility is explored, the universe splits. Given a number of possible alternative outcomes, each one is played out in its own universe. A motorist who almost meets with an accident, for instance, might feel relieved at his lucky escape.
But in a parallel universe in another version, the same driver would have been killed. Yet another universe will see the motorist recover after treatment in hospital. The number of alternative scenarios is endless. Like an everyday universe, it is a region of space and time containing matter, galaxies, stars, planets and living beings. In other words, every time a new physical possibility is explored, the universe splits.
A parallel universe is similar, and possibly, even a duplicate of our own universe. There are human beings who may be exact duplicates of ourselves and who are connected to us through mechanisms only explainable using quantum physics concepts. Parallel universes are also called alternative universes, quantum universes, parallel worlds, alternative timelines, etc.