As the Venn diagram suggests, the states are not quite the solidly colored monoliths that we often think -- as we saw on Tuesday. More people live in states that allow both than actually support both.

Here five ellipses overlap to form a symmetrical Venn diagram that was first created by Croatian mathematician Branko Grünbaum in 1975. ( Image: Wikimedia Commons) Things get prettier as the ...

This is now known as the geocentric model, while the heliocentric model puts the sun at the center. Nicolaus Copernicus proposed the heliocentric model in his work published in 1543, according to ...

for inventing the circles known as the Venn diagram. The doodle allows you to choose from five different subjects (mammals and sea life, for example) along with five descriptors (thrives in cold ...