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2014
It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.
The paper considers the iron column Iron pillar located in the archaeological complex Qutub in Delhi city (India), which has not corroded for 16 centuries.The mechanism of atmospheric corrosion in this column has been reviewed.The hypothesis about the nonappearance of corrosion processes on the surface of the column for a long period of time has been suggested.