3%&'(('#)'#*"#*+,%-.'#( c ) B#
• 3%&'(('#)+#(:6#)"6(#*4"%.#DEEFGHI#,J(K##
)"6(#*'#7":+&79:+7#IH#,J(##)"6(#*'#C."6%&'#LMMM#,J(#
• N"*%*0'#DFILH;FLHOK#6'#.0+((%"(#?#,'(+.'.#c##
• ='(7".&'(#DFIPL;FLIMK#1#'**'#('#2.:2"C'#%6(&"6&"60,'6&#
• Q*'#RS,'.#DFLHH;FTFMK1#
#####Q@('.$'#*4'7*%2('#)'#U:#D("&'**%&'#)'#V+2%&'.K#
#*"#*+,%-.'#)%W-.'#)'#OO#,%6#'6&.'#O#2:%6&(#:22:(0(#)'#*4:.@%&'#&'..'(&.'########
• 3%&'(('#)'#*"#*+,%-.'#)"6(#*'#$%)'#
c = 299 792 458 m/s ≅ 300 000 km/s = 3x108 m/s
• X+22:.&#)'#*4:6)'#1#*40&9'.#BB#