photo contest - Yacht Essentials
photo contest - Yacht Essentials
photo contest - Yacht Essentials
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True north and magnetic north are rarely the<br />
same. In the early 1900s, magnetic north, a<br />
point at the top of the Earth that determines<br />
compass headings, was moving at approximately<br />
9 miles per year. Since 1989, magnetic north<br />
56 YACHT ESSENTIALS<br />
WHAT DIRECTION<br />
ARE WE MOVING?<br />
BY CAPTAIN TED SPUTH<br />
“The great thing in this world is not so much where we stand, as in what<br />
direction we are moving…We must sail sometimes with the wind, and<br />
sometimes against it…But we must sail, and not drift, nor lie at anchor.”<br />
— Oliver Wendell Holmes<br />
began shifting at a rate of 25 to 40 miles per year. The<br />
reason for this increase in speed is the Earth’s outer<br />
core of hot molten iron and nickel continually ebbing<br />
and flowing and forming a giant dynamo or electromagnet.<br />
This reacts with the Earth’s rocky mantle,
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