In honor of Black History Month, here's a series of lectures I stumbled upon on YouTube that you might be interested in:
Tuesday, February 9, 2010
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Everything you always wanted to know about Web surfing in easy to read, jargon free language: Must-see sites, quick Web tips, sites especially for seniors and more!
surfactant | |
Definition: | A chemical agent capable of reducing the surface tension of a liquid in which it is dissolved. |
Synonyms: | wetting agent, surface-active agent, wetter |
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