By
Abu Murad | August 21st 2007 05:34 PM |
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A team of scientists shelled advertisement to have succeeded in reversing the Casimir effect, which causes the attraction of the microphone-objects between them. This discovery Of nano-engineering could improve their operation of the nanomachines.
Scientists as of the Scottish university of St Andrews announce to have discovered a new means of making leviter small objects. For that purpose, the team attacked the natural laws and succeeded in reversing the phenomenon known under the name of Casimir effect, and which pushes the infinitely small structures in general to be stuck between them by the quantum force. This discovery should solve a major problem for the scientists, that of the attraction of the small objects between them within current the nanomachines.
To reverse the Casimir effect
“By controlling the Casimir effect, we could develop microphone and nano machines functioning in more modulated way and with less or at all of friction”, explains professor Ulf Leonhardt of University' S School of Physics & Astronomy. Discovered in 1948 but measured for the first time only in 1997, the Casimir effect - of which the effects can be noted on the geckos, of the small lizards able to adhere to a surface without falling - is due to the quantum fluctuations of the vacuum. By reversing it, the scientists wish to allow two objects to rather push back itself than to be attracted one with the other. To this end, they use a special lens which, placed between the two structures, starts the effect of repulsion.
An inapplicable discovery with the man
“To reduce the friction, the possibility of separating the objects could be the single solution. In the place to adhere the ones to the others, the various samples of micromachines leviteraient”, adds professor Leonhardt. For those which dream of effect of weightlessness, it will still be necessary to wait. “For the moment, this practice is only applicable to the microphone-objects. The quantum force is indeed tiny there and of weak range. The levitation of human beings remains field of the animated drawings, fairy tales and paranormal”, concludes Ulf Leonhardt.
