Flight progress
The in-flight entertainment system can also show you the current position, speed, height, outside temperature.
"Between continents, airplanes follow what are called “great circle” routes, accounting for the earth’s curvature. These routes won’t make sense if you’re looking at a traditional flat map, because when the earth is crushed from its natural round state into a horizontal one, it becomes distorted as the divisions of latitude and longitude stretch apart."
Flight progress
The in-flight entertainment system can also show you the current position, speed, height, outside temperature.
"Between continents, airplanes follow what are called “great circle” routes, accounting for the earth’s curvature. These routes won’t make sense if you’re looking at a traditional flat map, because when the earth is crushed from its natural round state into a horizontal one, it becomes distorted as the divisions of latitude and longitude stretch apart."