The last weekend a stayed in the beautiful Celaya. Most precisely, only the saturday, because I arrived at friday night and departed at sunday afternoon. Gather with the friends, drink beer, talk about girlfriends and videogames... the usual stuff. The motive was the Julio's birthday. The next weekend my babybro will be in Celaya too. He has a short vacation. I don't know if I should go too. Pushed another versión of Explorer, my new toy. It explore an unkown environment using a sick laser. Now the user can set a goal position with a mouse click, and the program calculate with value iteration the cost of traveling of each cell.