Why do chemicals have to be heated in the flame first before the colored light is emitted?
By Lance Cooper
February 20, 2012
Several management consultants, all PhDs in Science, Technology, Engineering or Mathematics (STEM), will introduce themselves in the STEM Forum on Monday February 20 and answer questions for the rest of the week. You can read directly on the site, or get email notifications. Invite friends; anyone may register on VPhD for free and enjoy the discussion as it unfolds between February 20-24.
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