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shared by Jac Londe on 25 Oct 10 - No Cached

first direct images of
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magnetic monopoles
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Image representing 12 micrometer x 12 micrometer of artificial magnetic metamaterial where monopoles can be seen at each end of the Dirac strings, visible as dark lines. The dark regions correspond to magnetic islands where the magnetization is reversed. (Image courtesy of Paul Scherrer Institute)
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“A magnetic monopole is a ‘hypothetical’ particle that is a magnet with only one single magnetic pole,” says UCD Theoretical Physicist, Professor Hans-Benjamin Braun from the UCD School of Physics, who co-led the study with Dr Laura Heyderman from the Paul Scherrer Institute in Switzerland.
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“Some of the most important theories explaining how quantum matter behaves in the universe are based on their existence, but they have eluded direct imaging since they were first theoretically conceived in the 1930s.”
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Initially conceived by the British-Swiss theoretical physicist Dirac in 1931, monopoles were proposed to occur as emergent quasiparticles in so called pyrochlore spin-ice systems by Castelnovo, Moessner and Sondhi in 2008.
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shared by Maggie Tsai on 02 Apr 09 - Cached

In my experience, what makes diigo better? it saves the content of the page you bookmark, not only the link. Magnolia used to do that before they lost all their user’s data You can highlight! Important, as sometimes you don’t remember what was interesting in a page Posts are Private by default There’s a bunch of community features behind it. Example: pop psych you can post to other sites, including delicious (they are an example of openness)
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On top of all this, there’s another feature that may well become revolutionary: adding sticky notes to pages, in a way that other people can see it. When using the Diigo toolbar, you can see what other people have highlighted, and also comments (sticky notes) they added. That means that you are no longer limited to leaving comments on blogs, you can do so in any type of page (even static pages). Diigo enables you to drop your comment exactly where it is relevant, not at the end of a long list.
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All in all, I’ve never seen an entrance in a monopolized market (social bookmarking) with this strength and resolution. Diigo is very impressive, and my bookmarking tool of choice.
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shared by Jac Londe on 01 Mar 13 - No Cached

Big food corporations work with corrupt government agencies to eliminate “small time” competition and take over the industry Published on Thu, Feb 28, 2013 by Mihai Andre
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Three companies now account for more than 40 per cent of global coffee sales, eight companies control most of the supply of cocoa and chocolate, seven control 85 per cent of tea production, five account for 75 per cent of the world banana trade, and the largest six sugar traders account for about two-thirds of world trade, according to the new publication from the Fairtrade Foundation.
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