“You cannot break the speed of light barrier for the passengers themselves relative to spacetime, so instead you keep them moving normally in the bubble you move the bubble itself superluminally”, Professor and Research Fellow at the Frankfurt Institute for Advanced Studies, Sabine Hossenfelder, explains. The inside of the bubble would contain a passenger area, where the passage of time could operate differently from that outside the craft. The new paper, as Popular Mechanics reports, makes a key distinction between Alcubierre’s notions and its own: rather than using “negative energy”, a substance which does not exist in the universe, bubbles of spacetime could be used to make the drive possible. Unfortunately, the Alcubierre Warp Drive as it has come to be known, requires a. Faster-than-light travel would usually require an infinite amount of energy, but that restriction only applies to objects in spacetime rather than spacetime itself - which is how the universe could expand faster than the speed of light after the Big Bang. The warping part of a warp drive usually means distorting the shape of spacetime so that two distant locations can be brought close together and you somehow. The first real world attempt to move the warp drive concept from science fiction to science fact was made by Mexican mathematician Miguel Alcubierre, who’s 1994 proposal represents the beginning of the official literature. In theory, a warp drive would be able to work within the boundaries of Albert Einstein’s theory of general relativity.
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