"Although they may seem more the stuff of science fiction than science fact, physicists first dreamed up the idea of wormholes. In 1935, Albert Einstein and Nathan Rosen realized that general relativity allows the existence of “bridges,” originally called Einstein-Rosen bridges but now known as wormholes. These space-time tubes act as shortcuts connecting distant regions of space-time. By journeying through a wormhole, you could travel between the two regions faster than a beam of light would be able to if it moved through normal space-time. As with any mode of faster-than-light travel, wormholes offer the possibility of time travel.
Until recently, theorists believed that wormholes could exist for only an instant of time, and anyone trying to pass through would run into a singularity. But more recent calculations show that a truly advanced civilization might be able to make wormholes work. By using something physicists call “exotic matter,” which has a negative energy, the civilization could prevent a wormhole from collapsing on itself. The stuff of science fiction, to be sure. But perhaps some day in the far future, it could also turn into science fact."
il primo pezzo in alto dice quello che aveva detto algol,piu' o meno,la seconda parte afferma che i wormholes esisterebbero solo per un attimo,percio' chi ci passa,poi si troverebbe impedito a ritornare,a meno che,ma per questo ci sarebbe bisogno di una civilta' veramente avanzata,si riesca ad usare la "materia esotica",per impedire che il wormhole collassi su se stesso;e'science fiction,ma potrebbe trasformarsi in scienza.
scusate l'inglese,e' il sito di hawkings...praticamente la ruota potrebbe essere stata creata da una civilta' avanzata,per mantenere aperto il wormhole,affinche' non crolli su se stesso,ed e' la ruota che rilascia la materia esotica(parte di quella nera) che serve alla prevenzione del crollo. algol,ho capito bene?
Ultima modifica di wishiwaskate il mer giu 04, 2008 6:22 pm, modificato 1 volta in totale.
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