Greboca  

xkcd.com  -  Physical Quantities

 -  24 mai - 

The Hubble length is about 1.9 meters lying down; Edwin Hubble was a tall guy.

par

xkcd.com

xkcd.com : A webcomic of romance and math humor.

UFO Evidence

 -  7 juin - 


Marble Run

 -  5 juin - 


Drainage Basins

 -  2 juin - 


Ruling Out

 -  31 mai - 


Wikipedia Article Titles

 -  29 mai -