Time Maps: Calendar Views
Rather than map time within the
same image, it is possible to tile images from multiple moments in
time side-by-side. For example, we can show midnight of every day of a
month
at the same time, then show 12:05AM, 12:10AM, and so on. We call these
types of Time Maps calendar views.
The following video
shows every day of January, 2002, at Cornell University.
Things to look for in this movie:
- The days are aligned according to their location on the
January 2002 calendar (i.e., all the Sundays of the month are in the
leftmost column, all Saturdays, the rightmost column).
- In the bottom-right frame (the 26th), you'll see the moon
descend before dawn. Pay attention to the next two consecutive days to
watch the
moon descending at slightly later times each day
- The lights on the clock tower turn off at exactly the same
time
every day, right before dawn
- On the 7th, the camera gets covered with snow
- On the 8th (the day after snow covers the camera), someone
writes a message in the snow in the late afternoon. This message is
visible the next day in the morning, too
- Days later in the month have more daylight, and so get
brighter sooner in the morning, and darker later
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