Source: Did You Know: The Lines On A Solo Cup Are Measurement Marks | KUNC
Stashed in: Alcohol!, Beer!, snopes!
I didn't know this...
Apparently it's just a coincidence that the lines correspond to measurements.
This explains: http://www.snopes.com/food/prepare/solocups.asp
I didn't know this, either.
I also liked the link on how to build a campfire: http://kunc.org/post/summer-science-how-build-campfire
I saw another, more crude variation on this theme today.
Overeating junk food can turn you completely off healthy food.
Turf 'n' Turf!
The Cuke cocktail
Who Really Owns Your Craft Beer? | TIME.com