Educational Status

High school graduate




College graduate




Graduate studies, degree




*Significantly different from 1992. Group numbers may not sum to the total 1

| because of a statistical peculiarity called Simp

son's paradox.


what more literate, they are ill equipped to compete with the better educated. Together the two groups—the "below basic" and the "basic"—make up 34 percent of all adult Americans and should be counted as illiterate by the standards of the information economy. Their illiteracy not only bars them from the better jobs but also limits their participation in political and social life and so contributes to the divisiveness of American society.

Rodger Doyle can be reached at [email protected]



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Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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