R O P E S
Dan used hula hoops to help him explain how the
GPS system works because
in my opinion there is only a limited
space that you can get GPS service. Each tower that holds GPS power for cars,
military, (etc.) can only go so far.
Dan told us that he only
used hula hoops proportionally because they are
like a smaller version of the real towers. The GPS
tower sends out signals that make the GPS always know where you are and where
you want to go. Dan
helped us understand the meaning of GPS towers better with hula hoops than if
there were no hula hoops.
by Maeve
by Maeve
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