In astrophysics, a magnetic mirror point is a point where the motion of a charged particle trapped in a magnetic field (such as the Earth's) reverses its direction. More precisely, it is the point where the projection of the particle's velocity vector in the direction of the field vector is equal to zero.
Famous quotes containing the words magnetic, mirror and/or point:
“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)
“A man has only one escape from his old self: to see a different self—in the mirror of some woman’s eyes.”
—Clare Boothe Luce (1903–1987)
“The point is that nationalism, even in its latest madhouse frenzies under Mussolini and Hitler, is still, like advertising, an arm of big business. Nations as we know them today, were the invention of business and it is natural that business should still consider itself slightly above patriotism and that the strongest international should still be the international of profits.”
—John Dos Passos (1896–1970)