What is magnetic north?

Some articles on magnetic north, magnetic, north:

Magnetoception - In Invertebrates
... moon Tochuina would orient their bodies between magnetic north and east ... field 80% of Tochuina made a turn to the left or magnetic east ... However, when a reversed magnetic field was applied that rotated magnetic north 180° there was no significant preference for either turn, which now corresponded with magnetic north and magnetic west ...
Magnetic North (disambiguation)
... Magnetic North or the North Magnetic Pole is the point on the surface of Earth's Northern Hemisphere at which the planet's magnetic field points vertically downwards ... Magnetic North may also refer to magnetic declination, the direction in which a compass needle points Magnetic North (Hopesfall album), 2007 Magnetic North (Aqualung ...
Magnetic North Pole - Magnetic North and Magnetic Declination
... The direction a compass needle points is known as magnetic north ... In general, this is not exactly the direction of the North Magnetic Pole (or of any other consistent location) ... The local angular difference between magnetic north and true north is called the magnetic declination ...
Magnetic Declination - Navigation - Air Navigation
... Magnetic declination has a very important influence on air navigation, since the most simple aircraft navigation instruments are designed to determine headings by locating magnetic north ... used for air navigation are based on True north rather than magnetic north, and the constant and significant slight changes in the actual location ... For example, as of March 2010, near San Francisco the magnetic north is about 14.3 degrees east of True north, with the difference decreasing by about 6 ...
Types of Compasses - How A Magnetic Compass Works
... A compass functions as a pointer to "magnetic north" because the magnetized needle at its heart aligns itself with the lines of the Earth's magnetic field ... The magnetic field exerts a torque on the needle, pulling one end or pole of the needle toward the Earth's North magnetic pole, and the other toward the South ... allow oscillations to die out, one end points toward the North magnetic pole ...

Famous quotes containing the words north and/or magnetic:

    Let north and south—let all Americans—let all lovers of liberty everywhere—join in the great and good work. If we do this, we shall not only have saved the Union; but we shall have so saved it, as to make, and to keep it, forever worthy of the saving. We shall have so saved it, that the succeeding millions of free happy people, the world over, shall rise up, and call us blessed, to the latest generations.
    Abraham Lincoln (1809–1865)

    We are in great haste to construct a magnetic telegraph from Maine to Texas; but Maine and Texas, it may be, have nothing important to communicate.
    Henry David Thoreau (1817–1862)