Monday, July 30, 2012
astro picture for the day
Image Credit & Copyright: Sigurður Stefnisson
Astro picture for the day? well, it is a surface phenomenon of a planet! One of the great intellectual things of the twentieth century was that geology turned into planetology.
------------------------------------extra goodie for the day---------------------------------------------------
An actually working casimir affect micro-machine(can be extended to nano realm with all the latest nano-engineering advances of the past two or three decades since Casimir forces were confirmed experimentally I do believe around 1981).
Smalley once severelly criticized the nano-community that nano-machines were impossible because of 'sticky fingers.' He was meaning just ordinary chemical attractions. Soon, people pointed out that the casimir force also might present a bit of problem. Well, now, that problem looks to be solved to some degree.
As always it should be exciting to see if there's rapid progress; the same manufacturing technologies that made this can integrate the patterns of this casimir force machine into various micro and nano machines that they've been making since the 1980s.
Note; when/if they start making micro/nano machines out of this breakthrough(the article sounded more than optimistic), they will be true quantum machines exploiting the casimir force; the casimir force has to do with simply putting two plates together in a 'vacuum.' Only, according to quantum electrodynamics(Paul Dirac's generalization of the quantum mechanics created by Niels Bohr, Heisenberg and Shroedinger; it combines special relativity and not general and Shroedinger's quantum mechanics generalization of Niels Boh's quantum mechanics; yep, generalizations of generalizations; how far we've come! We've now bagged a most remarkable quantum partilce- the Higgs! Remember that!?LoL!), the vacuum is a sea of partilces coming in and out of existence within Heisenberg's uncertainty principle. So, if you put to plates in a vacuum, you should limit the possible wavelengths in between them compared to the possibilities to the farthest reaches of the universe! So, the plates should feel an inward force; they do!
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