Usually, as a fluid is heated it will become less dense. A heated blob will feel
a force pushing it upward, the blob will tend to rise, and cooler fluid will
fall into its place. At the lowest heating rates, there is no motion. Then, as
the heating rate is increased, one sees successively a steady motion, a periodic
oscillation, and a chaotic domain.
web20tools
A list of links to support the use of Web 2.0 tools for teaching and learning in the K-12 environment
more fromwww.diigo.com
Side story
more fromen.wikipedia.org
SirsiDynix Acquired by Private Equity Firm; Service To Remain Same, but Will Costs Rise? - December 27, 2006 - Library Journal
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Flickr: Search
more fromwww.flickr.com
Continuous search engine
more fromallth.at
21st Century Skills
more from21cif.imsa.edu
Education Week: Survey Finds Interest in Blend of Traditional and Online Courses
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