Physicists have 'solved' mystery of levitation
2007 08 10
By Roger Highfield | telegraph.co.uk
In theory the discovery could be used to levitate a person
Levitation has been elevated from being pure science fiction to science fact, according to a study reported today by physicists.
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.
Article from: Physicists have 'solved' mystery of levitation
John Hutchison - The Hutchison-Effect
Invisibility cloaks are in sight
Demonstration and the mathematics of invisibility cloaking (Video)
Now you see it, now you don't: cloaking device is not just sci-fi
The Hutchison Effect - American Antigravity
Latest News from our Front Page
Group Polarization and the Fad of Ethno-masochism
2014 11 26
From "Group polarization: A critical review and meta-analysis". Journal of Personality and Social Psychology. 6 50 (6): 1141--1151
The psychology of White self hatred. Political correctness IS a mental disorder.
Group polarization: A critical review and meta-analysis.
Isenberg, Daniel J. the paper
Harvard Professor Noel Ignatiev talks about how to end the White race
The History of Political Correctness
The Narrative: The origins of Political ...
Credo: A Nietzschean Testament by Jonathan Bowden
2014 11 26
This lecture by Jonathan Bowden was given at the 11th New Right meeting in London on September 8, 2007. The original title of the presentation was “The Art and Philosophy of Jonathan Bowden.”
I think ideas are inborn, and you’re attracted, if you have any, toward certain systems of thinking and sensibility and response. From a very young age, I was ...
A Look Back at the OJ Simpson Verdict -- Reactions
2014 11 26
This is a look back at the different reactions to the OJ Simpson verdict some 20 years ago (exact date of verdict was Oct 3, 1995). The OJ Simpson jury consisted of 9 Blacks, 1 Hispanic, and 2 Whites. It would raise eyebrows after they only deliberated for 4 hours in a case that they were involved in for almost ...
New York Times Publishes Darren Wilson’s Street Address and Photo of House #Ferguson
2014 11 26
Hey here are the two @nytimes scumbags that published Wilson’s home address. —> @juliebosman & @campbellnyt— Ben Howe (@BenHowe) November 25, 2014
Michael Brown’s Stepdad Shouting ‘Burn This Bitch Down’
The New York Times published information about the address of Ferguson Police Officer Darren Wilson on Monday in a move that has generated controversy. Tensions are running high in Ferguson, Missouri, as ...
How Monsanto is Destroying the Brains and Health of Everyone
2014 11 25
Interested in slowing your aging process? Take note!
One of my most recent blog entries summarized roughly 10 years of research related to the consequences of inflammatory processes in the periphery of the body, such as the gut, and how this was driving brain degenerative inflammatory processes within the brain.
One of the key findings from that research was how pathogenic ...
|More News » |