Sunday, May 17, 2009

FTL – Finally a possibility in mainstream science

Every now and then, a piece of news begs you to stop, rise above the mundane world of everyday life and reach for the stars and this month… it literally made it possible to reach for the stars – well almost, at least in theory!

Finally two physicists at Baylor University, US, have stumbled upon an idea that may turn traveling at the speed of light from science fiction to real science, just like the warp speed at which spacecraft travel in the fictional TV and film series ‘Star Trek’

Dr. Gerald Cleaver, associate professor of physics at Baylor, and Dr. Richard Obousy, a Baylor post-doctoral student, theorize that by manipulating the space-time dimensions around the spaceship with a massive amount of energy, it would create a “bubble” that could push the ship faster than the speed of light.

To create this bubble, the Baylor physicists believe manipulating the 11-dimension would create dark energy. Cleaver said that positive dark energy is responsible for speeding up the universe as time moves on, just like it did after the Big Bang, when the universe expanded faster than the speed of light.

“Think of it like a surfer riding a wave,” said Cleaver, who co-authored a research paper with Obousy about the new method. “The ship would be pushed by the bubble and the bubble would be traveling faster than the speed of light,” he added.

The method is based on the Alcubierre drive, which proposes expanding the fabric of space behind a ship into a bubble and shrinking space-time in front of the ship.

According to Wikipedia - Alcubierre drive - also known as the Alcubierre drive or Warp Drive, is a speculative mathematical model of a space-time exhibiting features reminiscent of the fictional "warp drive" from Star Trek, which can travel "Faster-than-light".

In 1994, the Mexican physicist Miguel Alcubierre proposed a method of stretching space in a wave which would in theory cause the fabric of space ahead of a spacecraft to contract and the space behind it to expand. The ship would ride this wave inside a region known as a warp bubble of flat space. Since the ship is not moving within this bubble, but carried along as the region itself moves, conventional relativistic effects such as time dilation do not apply in the way they would in the case of a ship moving at high velocity through flat space-time. Also, this method of travel does not actually involve moving faster than light in a local sense, since a light beam within the bubble would still always move faster than the ship; it is only "faster than light" in the sense that, thanks to the contraction of the space in front of it, the ship could reach its destination faster than a light beam restricted to travelling outside the warp bubble. Thus, the Alcubierre drive does not contradict the conventional claim that relativity forbids a slower-than-light object to accelerate to faster-than-light speeds. However, there are no known methods to create such a warp bubble in a region that does not already contain one, or to leave the bubble once inside it, so the Alcubierre drive remains a theoretical concept at this time.

The ship would not actually move, rather the ship would sit in between the expanding and shrinking space-time dimensions. Since space would move around the ship, the theory does not violate Einstein’s Theory of Relativity, which states that it would take an infinite amount of energy to accelerate an object faster than the speed of light.

String theory suggests the universe is made up of multiple dimensions. Height, width and length are three dimensions, and time is the fourth dimension. Scientists believe that there are a total of 10 dimensions, with six other dimensions that we cannot yet identify. A new theory, called M-theory, takes string theory one step farther and states that the “strings” actually vibrate in an 11-dimensional space. It is this 11th dimension that the Baylor researchers believe could help propel a ship faster than the speed of light.

Gee – the only thing left to invent now is “inertial dampening” and “shields” J I wonder what Zefram Cochrane would have thought of this…

So…the theory is there. Implementation waits the perception of our current technologies in higher dimension. Accelerating masses generate gravitational radiation in higher dimension. That side of the universe in completely dark for us as we cannot perceive anything beyond the three spatial dimensions and one forward moving time dimension.

The theory of relativity predicts that masses being accelerated should emit ``gravitational radiation’’ in the same way that charged particles (like electrons) emit electromagnetic radiation when they are accelerated.

Simply put use of gravitational wave in higher dimensions easily produce thousand time faster speed than light. The waves and radiations that we can perceive are designed to explicitly manifest themselves in 3-d spatial environments. Gravity radiation is what runs the chilled universe, the Hyperspaces and zillion universes held by the chilled platform universe.

I think this piece of theoretical work has important connotations for humanity and its future and I for one would closely follow any developments – theoretical or experimental in this field…

No comments: