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    About Findability

    As 21st century education adapts to its online future, the edu sector is learning to work under the network laws that make the best study knowledge findable. Findability emerges naturally from educational resources embedded in a network when these 7 elements are present.

    Digital - Educational materials that are printed are outside of the digital online commons where findability arises.

    Unbundled - Findability works bests with the smallest pieces of content, so bundles like curricula, courses, and PDFs stifle findabiity.

    Open - To be findable, content must be open in the one Web global commons, with no barriers of cost, subscription, or copyright.

    SEOed - Search Engine Optimization with keywords and linking attracts search engine spiders and boosts rankings on search engine results pages.

    Juiced - Webpages getting higher search engine page ranks from links by educators judging their content as superior.

    Networked - Nodes of learning content are syndicated (RSS), virally spread, and connected into social networks.

    Mobilized - Nodes of learning content are becoming findable to millions, and potentially billions, of new learners by being optimized for mobile phones.

    The learn nodes posted on this blog are models that show how you can increase findabiity for open educational resources.

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    The illustration below shows a learn node, which you can use as an educator to make webpages more findable. The top little circles illustrate links out to content nodes related to the subject of the large circle. Bottom left, experts connect to the node affirming its quality - giving it juice. Bottom right, a student connects to the node to learn the subject of its content.

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    Blog posts are used to make learn nodes on this website. Click here for a primer on using a blog post to make a learn node. Any webpage with its own url can be used as a learn node.

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Dec
04

Learn node: Light echoes Tycho’s supernova that Brahe saw in 1572

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This learn node is about Tycho’s supernova that Brahe saw Nov. 11, 1572. As Yahoo! News reports, Brahe was astonished to see what he thought was a brilliant new star in the constellation Cassiopeia. The light eventually became as bright as Venus and could be seen for two weeks in broad daylight. After 16 months, it disappeared.

BBC reports the 2008 discovery by Max Planck Institute scientists, using telescopes in Hawaii and Spain to capture faint light echoes of the original explosion — in effect capturing a fossil imprint of Tycho’s famous supernova. Wikipedia’s excellent article on Tycho’s Supernova for more background. NASA’s dictionary defines supernova and other relevant terms. The Galileo Project has a fine biography of Tycho Brahe. MIT’s open courseware offers instruction on the Plasma Physics that is a major focus for Tycho’s supernova.


Filed under astronomy, biography, general science, history, sciences on December 4, 2008 -
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