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