Venn diagram humor: There are two kinds of people in the world...

There Are Two Kinds of People in the World ...

Bad Astronomy
The entire universe in blog form
April 13 2012 6:30 AM

There Are Two Kinds of People in the World ...


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Phil Plait writes Slate’s Bad Astronomy blog and is an astronomer, public speaker, science evangelizer, and author of Death From the Skies!  

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