Note to McCain: Overhead projector is not a planetarium projector

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My friends, during last night's presidential debate, McCain took That One to task for approving funding for an "overhead projector." Howard Covitz, who used to work at Chicago's Adler Planetarium, prepared this helpful graphic for McCain to show the difference between an overhead projector and a planetarium projector.

Note to McCain: Overhead projector is not a planetarium projector

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Mark Frauenfelder

My latest book, Made by Hand, now in paperback. Follow me on Twitter.

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