Correction.

In your otherwise fine article "The 'Hydrogen Economy'" (August 20 issue), it should read gaseous hydrogen will be produced at the negative pole, known as the cathode. And also read, similarly, oxygen will collect at the positive pole, or anode anode (ăn`ōd), electrode through which current enters an electric device. In electrolysis, it is the positive electrode in the electrolytic cell.

anode

Terminal or electrode from which electrons leave a system. .

JAMES J. DIEHL, D.D.S D.S Drainage Structure (flood protection) ., M.D.

Eden Prairie, Minnesota The creator of this article, or someone who has substantially contributed to it, may have a conflict of interest regarding its subject matter.
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Title Annotation:	LETTERS TO THE EDITOR
Author:	Diehl, James J.
Publication:	The New American
Article Type:	Correction notice
Date:	Sep 17, 2007
Words:	51
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