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