Magnetic Field and Permanent Magnets
Permanent magnets are objects that produce their own persistent magnetic fields. They are made of ferromagnetic materials, such as iron and nickel, that have been magnetized, and they have both a north and a south pole.
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Famous quotes containing the words magnetic, field and/or permanent:
“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)
“Something told the wild geese
It was time to go.
Though the fields lay golden
Something whispered—”Snow.””
—Rachel Lyman Field (1894–1942)
“Thou hast an house on high erect,
Framed by that mighty Architect,
With glory richly furnished,
Stands permanent though this be fled.”
—Anne Bradstreet (c. 1612–1672)