Operation
Neptune in a School Setting-- Page 4
by Alan Zisman (c) 2004
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Navigation Chart:
Check whether
the problem asks for longitude or latitude.
Then find the proper longitude or latitude values for the two dots. To
find a difference, subtract those values! Later, students will be asked
to find values where the dots are in between two lines on a graph that
are labelled every 2 degrees.
Power Supply: Find
the speed up
the left-hand edge of the graph; then go straight across to the red
line,
then go straight down to find how much power is being used at that
speed.
Easy!
Radio Telephone Signal: You
need
to know how many hours there are in a day (24) or how many minutes in
an
hour (60). In the example, you are making 8 contacts in a day- which is
the same as 8 contacts in 24 hours. If your divide 24 by 8, you will
find
out how many hours between each contact.
Search Grid:
multiply the
length times the width of the area already searched (the light blue
squares).
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