Is a bubble coming? Well, is a valuation something passably sophisticated -- or is it a version of "Facebook has 500 million users... how much is a user worth?...oh, say, 100 bucks... presto, $50 billion!"
Maybe Google's IPO idea of "e * appropriate power of 10" lends a false air of accuracy -- all those digits! Not pulled out of thin air either.
PS. Ads? What ads? Facebook has ads?!?
For decades, researchers have been searching for magnetic monopoles — isolated magnetic charges, which can move around freely in the same way as electrical charges. Magnetic poles normally only occur in pairs. Now a team of researchers at the Paul Scherrer Institute (PSI) in Switzerland and University College Dublin has managed to create monopoles in the form of quasiparticles in an assembly of nanoscale magnets and to observe how they move using a microscope at the Swiss Light Source (SLS) to make the magnetic structures visible.
As with the elementary monopoles, which were first predicted by the British physicist Paul Dirac in 1931, each monopole is connected by a "string" to a monopole of opposite charge. The two monopoles can nevertheless move independently of each other. These results are not only of scientific interest, but could also provide a basis for the development of future electronic devices. The results are published online in the journal Nature Physics (Oct. 17, 2010).
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