¨¨¨##¨¨¨#¨                                          ###¨¨¨¨¨¨#
¨¨#¨#¨¨###                                          ¨¨#¨¨¨¨¨##
¨####¨#¨¨#                                          ¨##¨¨¨¨#¨#
#¨¨¨###¨#¨                                          #¨#¨¨¨####
#¨¨#¨¨###¨                                          ###¨¨#¨¨¨¨
#¨##¨#¨¨##                  rails                   ¨¨#¨##¨¨¨#
##¨###¨#¨¨                                          ¨###¨#¨¨#¨
¨##¨¨###¨#                                          #¨¨###¨###
#¨#¨#¨¨### ######################################## #¨#¨¨##¨¨#
#####¨#¨¨¨                                          ###¨#¨#¨#¨
¨¨¨¨###¨¨# ######################################## ¨¨########
¨¨¨#¨¨#¨##                                          ¨#¨¨¨¨¨¨¨#
¨¨##¨###¨¨                                          ##¨¨¨¨¨¨##
¨#¨##¨¨#¨¨ trains  are  so  constructed  that  they ¨#¨¨¨¨¨#¨#
###¨#¨##¨# have to  follow a set path. this path is ##¨¨¨¨####
¨¨####¨##¨ called a "railway",  which  is comprised ¨#¨¨¨#¨¨¨¨
¨#¨¨¨##¨#¨ of two  metal rails, hence its nickname. ##¨¨##¨¨¨¨
##¨¨#¨###¨                                          ¨#¨#¨#¨¨¨¨
¨#¨###¨¨#¨ because  the  low friction  between  the ######¨¨¨#
###¨¨#¨##¨ wheels of the train  and the rail metal, ¨¨¨¨¨#¨¨##
¨¨#¨###¨## there are  limits  for how acute a curve ¨¨¨¨##¨#¨¨
¨###¨¨##¨# can be,  and even more  so  for how much ¨¨¨#¨###¨¨
#¨¨#¨#¨### the  ground  under   the  rails  can  be ¨¨###¨¨#¨¨
#¨#####¨¨¨ sloped. thus a railway is  often not led ¨#¨¨#¨##¨#
##¨¨¨¨#¨¨# on top of hills, rather through  them in ##¨###¨##¨
¨#¨¨¨##¨## tunnels   (if   they   are   large),  or ¨##¨¨##¨##
##¨¨#¨##¨¨            artificial chasms.            #¨#¨#¨##¨#
¨#¨###¨#¨#                                          ######¨##¨
###¨¨##### there will be  trees  on the side of the ¨¨¨¨¨##¨#¨
¨¨#¨#¨¨¨¨¨ rails, but not too  close,  or they will ¨¨¨¨#¨####
¨####¨¨¨¨¨ be  cut down  by  the railway  janitors. ¨¨¨###¨¨¨#
#¨¨¨#¨¨¨¨¨ there  will  be  plains,  and bodies  of ¨¨#¨¨#¨¨##
#¨¨##¨¨¨¨#                  water.                  ¨##¨##¨#¨¨
#¨#¨#¨¨¨#¨                                          #¨##¨###¨#
#####¨¨##¨ trains  go  by  day and by  night. along ##¨##¨¨##¨
¨¨¨¨#¨#¨#¨      the way, there is information       ¨##¨#¨#¨##
¨¨¨######¨ scattered, often  put  on top of  poles, #¨######¨#
¨¨#¨¨¨¨¨#¨ to be interpreted by  the train drivers. ##¨¨¨¨¨###
¨##¨¨¨¨### different  parts  of  the  railway  have ¨#¨¨¨¨#¨¨#
#¨#¨¨¨#¨¨¨          different speed limits.         ##¨¨¨##¨##
###¨¨##¨¨¨                                          ¨#¨¨#¨##¨¨
¨¨#¨#¨#¨¨¨ sometimes, trains  have to stop and wait ##¨###¨#¨#
¨######¨¨# for something  to happen, far away. this ¨##¨¨#####
#¨¨¨¨¨#¨#¨ is  signaled by  red  or  green  lights. #¨#¨#¨¨¨¨#
#¨¨¨¨#####                                          #####¨¨¨#¨
#¨¨¨#¨¨¨¨¨                 ########                 ¨¨¨¨#¨¨###
#¨¨##¨¨¨¨¨                                          ¨¨¨##¨#¨¨¨
#¨#¨#¨¨¨¨¨ many people  follow the  rails  by foot. ¨¨#¨###¨¨#
#####¨¨¨¨# often this  proves  to  be  the  shorter ¨###¨¨#¨#¨
¨¨¨¨#¨¨¨## path between  two  points. however  this #¨¨#¨#####
¨¨¨##¨¨#¨# is   frowned  upon,  and  very  impolite #¨###¨¨¨¨#
¨¨#¨#¨###¨        toward the train drivers!         ##¨¨#¨¨¨##
¨#####¨¨#¨                                          ¨#¨##¨¨#¨#
#¨¨¨¨#¨###                                          ###¨#¨####
#¨¨¨###¨¨#                                          ¨¨####¨¨¨¨
#¨¨#¨¨#¨#¨                                          ¨#¨¨¨#¨¨¨#
#¨##¨#####                                          ##¨¨##¨¨#¨
##¨##¨¨¨¨#                                          ¨#¨#¨#¨###