Now here is a fascinating one-minute video...
It is a 24-hour observation of all of the large aircraft flights in the
world (recorded by the airplane flight transponders via Geo-stationary
orbital satellites) patched together and condensed down to about a minute,
i.e., you watch 24 hours of flights compressed into one minute.
From space we look like a beehive of activity.
You can tell it is summer time in the north by the sun's footprint over the
planet. You can see that it doesn't quite set in the extreme north and it
doesn't quite rise in the extreme south.
We are taught about the earth's tilt and how it causes summer and winter
and have had to imagine just what is going on. Now the "tilt" is visible.
With this 24-hour observation of aircraft travel on the earth's surface, we
get to see the daylight pattern move as well across the face of the planet.