| What's this dippy looking thing? | |
|
This is called a DIP CIRCLE.
It helped the crews on old sailing ships to tell the difference between the geographic North Pole and the North Magnetic Pole. This one was left behind by the Franklin Expedition. |
|
| What's this dippy looking thing? | |
|
This is called a DIP CIRCLE.
It helped the crews on old sailing ships to tell the difference between the geographic North Pole and the North Magnetic Pole. This one was left behind by the Franklin Expedition. |
|