#¨¨¨#¨#¨##                                          ¨¨¨#¨#¨¨#¨
#¨¨#####¨¨                                          ¨¨####¨###
#¨#¨¨¨¨#¨¨                                          ¨#¨¨¨##¨¨¨
###¨¨¨##¨#                                          ##¨¨#¨#¨¨#
¨¨#¨¨#¨##¨                                          ¨#¨####¨#¨
¨##¨###¨#¨                   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!         ¨#¨¨#¨¨#¨#
###¨¨#####                                          ##¨##¨###¨
¨¨#¨#¨¨¨¨¨                                          ¨##¨##¨¨##
¨####¨¨¨¨¨                                          #¨##¨#¨#¨#
#¨¨¨#¨¨¨¨¨                                          ##¨#######
#¨¨##¨¨¨¨¨                                          ¨##¨¨¨¨¨¨¨
#¨#¨#¨¨¨¨#                                          #¨#¨¨¨¨¨¨#