I need to know the shortest airplane route between chicago and london using a globe and a mercator map?

Answer 1

Check these sites.

http://gc.kls2.com/cgi-bin/gc?MAP-STYLE=&MARKER-STYLE=default&PATH=ORD-LHR&PATH-COLOR=red&PATH-MINIMUM=&PATH-STYLE=&PATH-UNITS=mi&RANGE=&RANGE-COLOR=navy&RANGE-STYLE=best&SPEED-GROUND=&SPEED-UNITS=kts

http://mathforum.org/library/drmath/view/52318.html