Multple artcle submission question

[docquesting]

Lets say a person runs a site on eggs. Eggs have a shell the whites and the yolks. Now the site owner wants to write a news article on a current update regarding egg shells to submit to article directories.

The question is would submitting articles on the same basic item and or sub items related to the main item affect it negatively. What I mean is lets say the site owner wants to submit an article on the egg shells now then a week or however long wants to re submit one on egg whites to the same directory.

How do the search engines look at such submissions? If this is ok how long should the site owner wait to submit the second and third articles on the sub item topics. Any recourses that you provide on such topics are appreciated along with your comments and or feedback.