Started by Hydra009, March 04, 2021, 09:12:32 PM
QuoteNow a group of physicists have put together the first proposal for a physical warp drive, based on a concept devised back in the '90s. And they say it shouldn't break any of laws of physics.Theoretically speaking, warp drives bend and change the shape of space-time to exaggerate differences in time and distance that, under some circumstances, could see travelers move across distances faster than the speed of light.One of those circumstances was outlined more than a quarter of a century ago by Mexican theoretical physicist Miguel Alcubierre. His idea, proposed in 1994, was that a spacecraft powered by something called an 'Alcubierre drive' could achieve this faster-than-light travel. The problem is it requires a lot of negative energy in one place, something that's simply not possible according to existing physics.
QuoteBut the new study has a workaround. According to researchers from the independent research group Applied Physics based in New York, it's possible to ditch the fiction of negative energy and still make a warp drive, albeit one that's maybe a bit slower than we'd like.
QuoteThe new research works around this â€" according to the paper, negative energy wouldn't be required, but a hugely powerful gravitational field would be. The gravity would do the heavy lifting of bending space-time so that the passage of time inside and outside the warp drive machine would be significantly different.You won't be able to book tickets just yet though â€" the amount of mass required to produce a noticeable gravitational effect on space-time would be at least planet-sized, and there are still plenty of questions to answer.
QuoteOne other interesting finding from the research concerns the shape of the warp drive: a wider, taller vessel will need less energy than a long and thin one.