Diagram 1-1/|\/ | \/ | \light pulse going up->/ | \<-light pulse on return trip/ | \/ | \/ | \/ | \---------|---------->train's motion (v = 0.6 c)Diagram 2-1|o|---------|o||o|* |o| ___________|o| |o| ^ /* /|o| |o| 5 | / /|o| |o| | / / 5|o| |o| | / /|o|---------|o| | /__________/|o| |o| | ___________|o| * |o| | / /|o| |o| 4 | / * /|o| |o| T | / / 4|o| |o| | / /|o|---------|o| I | /__________/|o| |o| | ___________|o| |o| M | / /|o| * |o| 3 | / /|o| |o| E | / * / 3|o| |o| | / /|o|---------|o| | /__________/|o| |o| | ___________|o| |o| | / /|o| |o| 2 | / /|o| * |o| | / / 2|o| |o| | / * /|o|---------|o| | /__________/|o| |o| | ___________|o| |o| | / /|o| |o| 1 | / /|o| |o| | / / 1|o| *|o| | / /|o|---------|o| /_________*/Diagram 2-2 Diagram 2-3t t^ ^| | light+ + /| | /+ + /| | /-+---+---o---+---+---> x -+---+---o---+---+-> x| |+ +| |+ +| |Diagram 2-4 Diagram 2-5t|B t| \ | | | | | |+ \ ---+---+---+---+---+---+---| \ | | | | | |+ \ ---+---+---+---+---+---+---| \ | | | | | |-+---+---o---+---+---C- x ---+---+---+---o---+---+--- x| / | | | | | |+ / ---@---+---+---+---+---+---| / | | | | | |+ / ---+---+---+---+---+---+---| / | | | | | |A|Diagram 2-6 Diagram 2-7t t| / | /+ + /| / | /+ + /|` |/-+---+---o---+---+--- x -+---+---o---+---+- x,| /|+ / +/ | / |+ / +/ | / |Diagram 2-8 Diagram 2-9t t t'| / | /+ B' + /| / \ | / __--x'+ / C' + / __C'-|/ / |/__---+---+---+---o---/---+---+- x -+---+---+-__o---+---+---+- x/| / * __-- /|/ / __-- / +// | -- / |A' + / +/ | / |Diagram 2-10t'+-----------------/-------+| / /_-/""/ /__/-"/ / _||/-"/ / _/--/" / /_-/""/|| /_-/""/ /__/-"/ / _/-->x'|"/ / _/--/" / /_-/""/ ||/_-/""/ /__o-"/ / _/--/|| / _/--/" / /_-/""/ /_||-/""/ /__/-"/ / _/--/" ||/ _/--/" / /_-/""/ /__/||""/ /__/-"/ / _/--/" / |+-------------------------+Diagram 2-11t'|t B'\ | \\ + \\ | \\ + \\| \---+---+---o---+---+---C'- x'| ""__ /+ ""--| / ""_C+ / ""--x| /A'|Diagram 2-12t^| light\ + /\ inside / + /outside \ | / outside---+---+---o---+---+---> x/ | \/ + \/ inside \/ + \|Diagram 3-1t t'^ /| /| /| /| /| /t = 1 + - - * - - - - - - - line of simultaneity| / t' = 0.8 for O at t = 1| /| /| /|/---------o----------------------> x||Diagram 3-2t t' line of simultaneity^ / ' for O' at t' = 1.25| / '| / '| / '| % t' = 1.25| ' /t = 1 + - - * - - - - - - line of simultaneity| / t' = 0.8 for O at t = 1| /| /| /|/---------o----------------------> x||Diagram 3-3t t'^ /| /|< line of constant position| / | for O at x = 1| / || / | / x'| / | / 't = 1 + / | / ' * = point where| / | / ' x' = 0.8| / | #| / * /< line of constant position| / ' | / for O' at x' = 1.25|/ ' |/---------o-----------+-------> x| || x = 1|Diagram 3-4t t'| /| +t'=2| /t=2+ /| /| / x'| / '| / '| + t'=1 +'t=1+ / ' x'=2| / '| / + '| / ' x'=1| / '|/ '--+-----------o-----------+-----------+---> x' /| x=1 x=2' / |Diagram 3-5t|| # = Light| | | | #-------------+-----------------------#-| | | # || | | # || | | # || | | # |# | | | # |-#-----------+-----------#------------| # | # | || # | # | || # | # | || # | # | || # | # | |--+-----------o-----------+-----------+----> x| | | ||