The Challenge: Create a Scale Map
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Using these techniques, it was possible to map the Northern part of the island.
We drew baselines
on the beach of each bay we could get to, then estimated how far away
the extreme points of the bay were by measuring the angles between the
headlands and their baseline. We also took a compass bearing and drew
a rough sketch. The compass was made from a magnetized needle stuck into
two pieces of cork. When it was floated in a cup of water, it pointed
to magnetic North.
Our cork compass
The leaf notepad we used to record our measurements
Making the map