Quantum Levitation: Soon We'll Build Above The Earth, And Leave Nature Alone
Levitation sounds pretty far fetched, but with more than 6000 UFO sightings annually in just the U.S., it seems someone is levitating under our Earth's laws of physics. With continuing developments in quantum levitation, we could soon find a simple way to elevate our buildings as seen in the Jetson's cartoons years ago. The benefits would be enormous, because we wouldn't need roads on the ground. Vehicles would travel in the same manner above the ground, and the landscape could remain natural, unpaved, and undisturbed. The lack of a need for pavement would reduce oil uses tremendously around the world, and the changes for the better are endless. Levitation has been elevated from being pure science fiction to science fact, according to recent studies by physicists (2008).
In earlier work the same team of theoretical physicists showed that invisibility cloaks are feasible.
Now, in another report that sounds like it comes out of the pages of a Harry Potter book, the University of St Andrews team has created an 'incredible levitation effects' by engineering the force of nature which normally causes objects to stick together.
Professor Ulf Leonhardt and Dr Thomas Philbin, from the University of St Andrews in Scotland, have worked out a way of reversing this pheneomenon, known as the Casimir force, so that it repels instead of attracts.
Their discovery could ultimately lead to frictionless micro-machines with moving parts that levitate But they say that, in principle at least, the same effect could be used to levitate bigger objects too, even a person.
The Casimir force is a consequence of quantum mechanics, the theory that describes the world of atoms and subatomic particles that is not only the most successful theory of physics but also the most baffling.
The force is due to neither electrical charge or gravity, for example, but the fluctuations in all-pervasive energy fields in the intervening empty space between the objects and is one reason atoms stick together, also explaining a "dry glue" effect that enables a gecko to walk across a ceiling.
Now, using a special lens of a kind that has already been built, Prof Ulf Leonhardt and Dr Thomas Philbin report in the New Journal of Physics they can engineer the Casimir force to repel, rather than attact.
Because the Casimir force causes problems for nanotechnologists, who are trying to build electrical circuits and tiny mechanical devices on silicon chips, among other things, the team believes the feat could initially be used to stop tiny objects from sticking to each other.
Prof Leonhardt explained,
"The Casimir force is the ultimate cause of friction in the nano-world, in particular in some microelectromechanical systems.
Such systems already play an important role - for example tiny mechanical devices which triggers a car airbag to inflate or those which power tiny 'lab on chip' devices used for drugs testing or chemical analysis.
Micro or nano machines could run smoother and with less or no friction at all if one can manipulate the force."
Though it is possible to levitate objects as big as humans, scientists are a long way off developing the technology for such feats, said Dr Philbin.
The practicalities of designing the lens to do this are daunting but not impossible and levitation "could happen over quite a distance".
Prof Leonhardt leads one of four teams - three of them in Britain - to have put forward a theory in a peer-reviewed journal to achieve invisibility by making light waves flow around an object - just as a river flows undisturbed around a smooth rock. Source
Watch this video to see how awesome quantum levitation is:
This next video is one I ran across, and it has some intriguing stories on levitation as well as other methods that have been explored through the years. Be sure to get to the part where they talk about beetle wings. It's quite unique.
So what do you think about all of this? Are we ready to live over the lakes or oceans? I guess that means there's a lot more room out there to build. We could build our structures in 3 dimensions. For those of us who own 2 dimensional land, should we start creating a grid above our homes to sell off the air space? Do we own our air space above our land? Or will they divy it up like water and mineral rights? These are all things to be worked out in the near future as we continue to advance technologies that will make a difference in the way we live today.