The
Rufie Chronicles: Morning Data Graphs
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Temperature
each morning and time of day that Rufie appeared at Gerry's feeder.
Click on each graph to see larger version with scale and legend. |
Temperature
can fluctuate a great deal during late fall and early winter, as the
first graph shows. In the second graph, although there are many exceptions
from day to day, the time Rufie appears each morning seems to grow later
throughout the time period. What is happening to the time of sunrise
during this time period?